A Comprehensive Guide to the New Schedule 1-A Deductions, Higher Standard Deduction, SALT Changes, Child Tax Credit, 1099-K Rules, Retirement Updates, Energy Credits, Business Tax Changes, and California Differences
2026 IRS Tax Updates: What Every Taxpayer Should Know Before Filing a 2025 Tax Return
A Comprehensive Guide to the New Schedule 1-A Deductions, Higher Standard Deduction, SALT Changes, Child Tax Credit, 1099-K Rules, Retirement Updates, Energy Credits, Business Tax Changes, and California Differences
The tax rules used to prepare a 2025 federal income tax return are not simply the 2024 rules with inflation adjustments.
Federal legislation enacted on July 4, 2025—Public Law 119-21, which the IRS discusses through its Working Families Tax Cuts guidance—made substantial changes that apply beginning with tax year 2025. Some provisions were enacted halfway through the year but apply to the full 2025 tax year. As a result, taxpayers preparing returns during 2026 can encounter deductions and filing procedures that did not exist when 2025 began. IRS Working Families Tax Cuts guidance
The changes affect far more than one type of taxpayer.
Employees who received tips or overtime may have new deductions. Taxpayers age 65 or older may qualify for an additional senior deduction. Some people who financed a newly purchased vehicle can potentially deduct qualifying personal vehicle-loan interest. Homeowners may benefit from a substantially higher federal state-and-local-tax deduction limit. Families face a larger Child Tax Credit and revised Social Security number requirements. Adoptive families can now receive a refundable portion of the federal Adoption Credit. Investors and online sellers must understand a revised Form 1099-K threshold. Retirees and inherited-IRA beneficiaries face important distribution rules. Business owners must consider major depreciation, Section 179, research-expense, and information-reporting changes.
There is also a new federal tax form at the center of several of these changes: Schedule 1-A, Additional Deductions.
California taxpayers have an additional complication. California generally does not conform to the federal tax provisions enacted in Public Law 119-21 because California’s specified conformity date was updated to January 1, 2025, while the federal legislation was enacted after that date. As a result, a deduction that reduces federal taxable income may need to be reversed or otherwise adjusted on the California return. California FTB federal conformity guidance
These distinctions make the 2026 filing season unusually important from a documentation perspective.
A taxpayer’s 2025 W-2 may not separately identify qualified overtime or tip amounts needed for the new deductions. A vehicle lender may not have provided information in the same format taxpayers will see in later years. A California taxpayer cannot assume that a deduction appearing on the federal return automatically carries to Form 540. A taxpayer who installed energy property during 2025 may be filing the final federal return on which certain residential energy credits remain available. An inherited IRA beneficiary may need to consider distribution requirements that changed beginning in 2025.
The purpose of this guide is to explain these developments as one connected filing system.
The question is not merely:
“What changed?”
The more useful questions are:
“Does the change apply to me, what records do I need, where is it reported, does California follow the same rule, and what mistake should I avoid before I sign my return?”
Why the 2025 Tax Return Is Different From the Prior-Year Return
Many tax changes are announced before the year begins.
The 2025 tax year was different because major legislation was enacted in July 2025 but made several individual provisions effective for the entire year.
That timing has practical consequences.
Employers had already processed months of payroll. Workers had already received overtime and tips. Vehicle loans had already been originated. Taxpayers had made estimated payments and withholding decisions under rules that were different when the year began.
The IRS itself warned that taxpayers could see changes in their 2025 refunds or balances because some new deductions were retroactive to the beginning of 2025 and taxpayers may not have adjusted withholding or estimated payments to reflect them.
This is why simply importing last year’s tax return and updating W-2s is not sufficient.
The preparer must determine whether the taxpayer became eligible for provisions that did not exist on the prior-year return.
New Schedule 1-A Is One of the Most Important 2026 Filing Changes
The IRS created Schedule 1-A, Additional Deductions, for 2025 individual returns.
The new schedule is used to calculate four major federal deductions:
qualified tips;
qualified overtime compensation;
qualified passenger vehicle loan interest;
and the enhanced deduction for seniors.
The resulting Schedule 1-A deduction flows to the 2025 Form 1040.
These deductions are especially significant because eligible taxpayers can generally claim them whether they use the standard deduction or itemize deductions.
The IRS published the new schedule and related instructions specifically for 2025 returns filed in 2026. IRS Schedule 1-A filing guidance
Schedule 1-A should therefore be reviewed whenever a taxpayer received tips, FLSA-qualified overtime, paid qualifying interest on a recently purchased personal vehicle, or was age 65 or older during 2025.
The 2025 Federal Standard Deduction Increased
For tax year 2025, the federal basic standard deduction is:
$15,750 for single taxpayers and married taxpayers filing separately;
$31,500 for married couples filing jointly and qualifying surviving spouses;
and $23,625 for heads of household.
These amounts reflect the law applicable to 2025 returns and are higher than the amounts originally expected before the 2025 legislation was enacted. IRS standard deduction guidance for 2025
A higher standard deduction does not automatically mean itemizing is no longer useful.
For homeowners and taxpayers with substantial state and local taxes, mortgage interest, charitable contributions, or qualifying medical expenses, the simultaneous increase in the SALT limit can make itemizing more attractive than in prior years.
The two calculations should be compared.
The Existing Age-or-Blindness Standard Deduction Still Exists
The new senior deduction did not replace the existing additional standard deduction for taxpayers who are age 65 or older or blind.
For 2025, the additional standard deduction based on age or blindness is generally $1,600 for a married taxpayer or qualifying surviving spouse and $2,000 for an unmarried taxpayer who is not a surviving spouse.
A qualifying taxpayer can therefore potentially receive:
the regular standard deduction;
the existing age-based additional standard deduction;
and the new enhanced senior deduction.
Those are separate concepts.
The IRS specifically states that the new $6,000 senior deduction is in addition to the existing age-based standard deduction.
This distinction is important because taxpayers sometimes see one age-related deduction on the return and mistakenly assume the new benefit has already been included.
The New Enhanced Senior Deduction Can Be Worth Up to $6,000 Per Eligible Person
For tax years 2025 through 2028, an individual who is age 65 or older by the end of the tax year may qualify for a new enhanced federal deduction of up to $6,000.
A qualifying married couple filing jointly can potentially receive $12,000 when both spouses are eligible.
The deduction begins phasing out when modified adjusted gross income exceeds $75,000 for an individual or $150,000 for a joint return.
It is available to qualifying taxpayers regardless of whether they take the standard deduction or itemize. Married taxpayers generally must file jointly to claim it, and the qualifying individual must satisfy the applicable Social Security number requirement. IRS enhanced deduction for seniors guidance
This can materially change a retiree’s federal taxable income compared with a projection made before the July 2025 legislation.
The Senior Deduction Is Not a Blanket Exemption for Social Security Benefits
A phrase sometimes used in public discussion is “no tax on Social Security.”
That wording can create the wrong tax expectation.
The federal law did not simply make every Social Security benefit tax-free.
Instead, eligible older taxpayers may receive the enhanced deduction described above. Social Security benefits continue to be evaluated under the federal rules governing whether part of those benefits is taxable.
The financial result can still be significant because the additional deduction may reduce federal taxable income substantially for some seniors.
But the technical mechanism matters.
A taxpayer should not remove Social Security income from the return simply because they heard that Social Security was “no longer taxed.”
The correct approach is to report Social Security properly and then apply the deductions for which the taxpayer qualifies.
Qualified Tips Can Produce a New Federal Deduction of Up to $25,000
Beginning with tax year 2025, qualifying workers may deduct up to $25,000 of qualified tips.
The deduction applies to qualifying employees and certain self-employed individuals in occupations that the IRS has determined customarily and regularly received tips on or before December 31, 2024.
The deduction begins to phase out when modified adjusted gross income exceeds $150,000, or $300,000 for married taxpayers filing jointly.
Eligible married taxpayers generally must file jointly, and the applicable Social Security number requirements must be satisfied. IRS qualified tip deduction guidance
The $25,000 is a maximum deduction.
It does not mean every person who receives a tip automatically deducts $25,000.
The taxpayer must have actual qualified tip income and satisfy the applicable eligibility requirements.
Not Every Payment Called a “Tip” Qualifies
The IRS has now finalized regulations identifying the occupations that customarily and regularly received tips for purposes of the new deduction.
The list contains more than 70 occupations across categories including food and beverage service, hospitality, entertainment, home services, personal services, recreation, transportation, and delivery.
Qualified tips generally involve voluntary cash or charged tips, including qualifying tip-sharing arrangements.
Mandatory service charges are not automatically treated as qualified tips merely because a business distributes them to employees.
The IRS publishes the applicable occupation list through its official tipped-occupation guidance.
For self-employed individuals, additional limitations apply, including the relationship between the tip deduction and net income from the activity.
Taxpayers should therefore avoid treating every cash payment from a customer as qualified tip income.
“Tax rules are not static. Inflation adjustments, legislative changes, revised deductions, updated credits, and new reporting requirements can all affect how a return should be prepared from one year to the next. Reviewing current IRS guidance before filing helps taxpayers understand which rules apply to the tax year being reported and reduces the risk of relying on outdated information.”
2025 W-2s May Not Separately Show the Tip Amount Needed for the New Deduction
Tax year 2025 contains a transition problem.
The new tip deduction was enacted during the year, and the IRS provided transition relief for employers and payers rather than requiring the existing 2025 information forms to be redesigned immediately.
As a result, a 2025 W-2, Form 1099-NEC, Form 1099-MISC, or Form 1099-K may not separately state the amount of qualified tips needed for Schedule 1-A.
Eligible workers may therefore need supporting information such as:
payroll records;
tip records;
employer statements;
Form 4137 information;
or other records showing the amount of qualified tips included in reportable income.
The IRS specifically warns taxpayers preparing 2025 returns that separate qualified tip information may not appear on the standard year-end forms.
This is one reason simply entering Form W-2 exactly as printed may not capture every 2025 deduction available to the taxpayer.
Qualified Overtime Can Produce a Deduction of Up to $12,500—or $25,000 on a Joint Return
Beginning with tax year 2025, qualifying individuals may deduct up to $12,500 of qualified overtime compensation, or up to $25,000 for married taxpayers filing jointly.
The deduction begins phasing out above modified adjusted gross income of $150,000, or $300,000 for a joint return.
Like the tip deduction, it is available to qualifying taxpayers whether they use the standard deduction or itemize.
But the phrase “no tax on overtime” is broader than the actual tax rule.
The deduction generally applies to the portion of overtime compensation in excess of the employee’s regular rate that is required under Section 7 of the Fair Labor Standards Act.
If an employee receives time-and-a-half, the deductible qualified overtime component is generally the additional “half,” not the entire one-and-a-half times pay. IRS qualified overtime deduction FAQs
Overtime wages are also still generally wages for federal employment-tax purposes.
The deduction operates on the taxpayer’s income tax return.
It does not retroactively erase Social Security or Medicare tax from the overtime wages.
California Daily Overtime Does Not Automatically Qualify for the Federal Overtime Deduction
This distinction is especially important for California workers.
California can require overtime in circumstances where federal law does not—for example, based on daily hours worked.
The new federal overtime deduction is tied to overtime required by Section 7 of the federal Fair Labor Standards Act.
The IRS has specifically clarified that overtime paid because of state law, a collective bargaining agreement, an employer policy, or another rule is not necessarily qualified overtime when it was not required by the FLSA.
For example, an FLSA-covered employee may receive California overtime after working more than eight hours in one workday even though the employee has not yet exceeded 40 hours during the federal workweek. That payment may be legally required under California wage law but still not be qualified overtime for the new federal deduction to the extent it is not FLSA-required compensation.
California employees should therefore not calculate the federal deduction by simply adding every line on their pay stubs labeled “OT.”
2025 Overtime Records May Require More Than the W-2
Just as with qualified tips, 2025 Forms W-2 generally were not redesigned to separately report qualified overtime compensation.
An employee may need:
pay stubs;
year-end payroll summaries;
employer statements;
regular rate information;
and records from multiple employers.
This becomes more important when the employee received different rates, bonuses that affected the regular rate, state-law overtime, double time, or overtime across several jobs.
The IRS’s 2026 filing guidance explicitly recommends payroll documentation for taxpayers claiming the 2025 overtime deduction. IRS records needed for 2025 Schedule 1-A deductions
Tax preparation may therefore require calculation rather than simply copying one year-end figure.
Personal Vehicle Loan Interest Can Now Be Deductible in Limited Circumstances
For tax years 2025 through 2028, qualifying taxpayers can potentially deduct up to $10,000 per year of qualified passenger vehicle loan interest.
This is a notable departure from the longstanding general rule that personal consumer interest is not deductible.
But the requirements are narrow.
The loan generally must have originated after December 31, 2024.
The proceeds must have been used to purchase an eligible vehicle whose original use begins with the taxpayer.
The vehicle must be for personal rather than commercial use.
The loan must be secured by a lien on the vehicle.
The deduction phases out for modified adjusted gross income above $100,000, or $200,000 for joint filers.
Lease payments do not qualify.
A taxpayer cannot therefore deduct interest on every existing auto loan simply because payments were made during 2025.
The Vehicle Must Meet Specific Eligibility Requirements
A qualifying passenger vehicle can include certain cars, minivans, vans, SUVs, pickup trucks, and motorcycles.
The vehicle generally must:
have a gross vehicle weight rating below 14,000 pounds;
have its original use begin with the taxpayer;
and have undergone final assembly in the United States.
Used vehicles generally do not satisfy the original-use requirement for this new deduction.
The vehicle identification number must be included on the return when the deduction is claimed.
Taxpayers should preserve the purchase agreement, VIN, loan documentation, lender interest statement, and information establishing final assembly location.
A monthly car-payment statement alone may not contain enough information to establish eligibility.
Schedule 1-A Deductions Are Available to Itemizers and Standard-Deduction Taxpayers
One of the most important structural points about the new deductions is that they are not ordinary Schedule A itemized deductions.
A taxpayer who claims the standard deduction can still potentially claim:
the qualified tip deduction;
qualified overtime deduction;
qualified passenger vehicle loan interest deduction;
and enhanced senior deduction.
Likewise, a taxpayer who itemizes may also potentially use Schedule 1-A.
This should prevent a common misconception that the taxpayer must choose between the new deduction and the standard deduction.
The IRS specifically describes the deductions as available to qualifying itemizing and non-itemizing taxpayers.
The Federal SALT Deduction Limit Increased Dramatically for 2025
For taxpayers who itemize, the federal limitation on deductions for qualifying state and local taxes increased to $40,000 for 2025, or $20,000 for married taxpayers filing separately.
This represents a substantial increase from the previous $10,000 general cap.
The deduction can include qualifying state and local income or sales taxes, real property taxes, and personal property taxes, subject to the applicable federal rules.
The 2025 Schedule A instructions reflect this higher limit. IRS 2025 Schedule A instructions
For many California homeowners, this change can materially alter the comparison between itemizing and taking the standard deduction.
A taxpayer who stopped itemizing in previous years should not assume the same answer automatically applies for 2025.
“Changes in federal tax law can affect taxpayers even when their financial circumstances remain largely the same. Adjustments to tax brackets, standard deductions, eligibility rules, and reporting requirements may change the outcome of a return. Staying informed before filing allows taxpayers to evaluate their situation under the rules that actually apply to that year.”
The $40,000 SALT Limit Can Be Reduced at Higher Income Levels
The federal $40,000 SALT limit is not universally available in full.
For 2025, the limit begins to decrease when modified adjusted gross income exceeds $500,000, or $250,000 for married taxpayers filing separately.
Under the 2025 rules, the limitation cannot fall below $10,000, or $5,000 for married filing separately.
That means higher-income taxpayers should not simply total their state income tax and property tax and assume the first $40,000 is deductible.
The phaseout calculation matters.
For taxpayers near the threshold, capital gains, pass-through income, bonuses, or other income can affect the allowable SALT deduction indirectly by changing modified adjusted gross income.
California Does Not Mirror the New Federal SALT Rules
The higher SALT limit is a federal itemized-deduction rule.
California has its own deduction framework.
California does not simply import the new federal $40,000 limit into the state return.
The state’s 2025 instructions require taxpayers to use Schedule CA to reconcile federal and California differences, and California has its own standard deduction and itemized-deduction rules.
This matters because California taxpayers may see a meaningful benefit federally while the state calculation moves in a different direction.
A federal tax benefit and a California tax benefit should never be assumed to be the same thing.
The Child Tax Credit Increased to $2,200 for 2025
For tax year 2025, the maximum federal Child Tax Credit increased to $2,200 per qualifying child.
The refundable Additional Child Tax Credit can be as much as $1,700 per qualifying child, subject to the applicable earned-income and other rules.
For a joint return, at least one spouse must meet the applicable work-eligible Social Security number requirement, while the other spouse must have the required SSN or ITIN issued by the filing deadline. Each qualifying child used for the CTC or ACTC must also have the required valid work-eligible SSN issued by the due date of the return, including extensions. IRS Child Tax Credit guidance
These identification rules are not a minor administrative detail.
A valid number obtained after the applicable deadline may not produce the same result.
Families with newborn children or recently issued Social Security numbers should address those issues before filing.
Earned Income Tax Credit Amounts and Income Limits Increased for 2025
The Earned Income Tax Credit remains one of the largest refundable credits available to qualifying workers.
For tax year 2025, the maximum federal EITC is:
$649 with no qualifying child;
$4,328 with one qualifying child;
$7,152 with two qualifying children;
and $8,046 with three or more qualifying children.
The investment-income limitation for 2025 is $11,950, and income phaseout limits vary by filing status and number of qualifying children. IRS 2025 EITC tables
Self-employed taxpayers should be particularly careful with EITC calculations.
Schedule C income and expenses should come from actual business records rather than being adjusted informally to create a desired credit amount.
The Adoption Credit Now Includes a Refundable Portion
For 2025, the maximum federal Adoption Credit is based on qualifying adoption expenses up to $17,280 per qualifying child.
A major change beginning in 2025 is that up to $5,000 of the credit can be refundable, subject to the applicable rules.
The remaining nonrefundable portion can generally be carried forward for up to five years when otherwise eligible. IRS Adoption Credit guidance
Adoption credits are documentation-intensive.
Court records, agency fees, legal costs, employer reimbursements, travel expenses, the timing of the adoption, and whether the adoption is domestic, foreign, or involves a child with special needs can all affect the calculation.
Trump Accounts and Form 4547 Are New for the 2025 Filing Process
Federal law also created a new type of account for children, referred to as a Trump Account.
An authorized individual can use new Form 4547 to elect to establish an initial account for an eligible child.
A separate election can request the government’s $1,000 pilot contribution for a qualifying child who is a U.S. citizen with a valid Social Security number and was born after December 31, 2024, and before January 1, 2029, subject to the detailed eligibility requirements.
Form 4547 can be filed with a 2025 income-tax return, although the IRS also provides an online election process. Contributions could not begin before July 4, 2026. IRS Trump Account guidance
The election should not be confused with a deduction on the parent’s 2025 return.
It is a separate account-establishment and pilot-program procedure.
The Form 1099-K Threshold Returned to More Than $20,000 and More Than 200 Transactions
A major information-reporting change affects payment apps and online marketplaces.
Federal law retroactively restored the prior third-party settlement organization threshold.
A third-party settlement organization generally is required to issue Form 1099-K when payments for goods or services exceed $20,000 and exceed 200 transactions during the year.
The IRS specifically confirmed that this threshold applies after the prior lower phased-in thresholds were repealed. IRS Form 1099-K threshold guidance
This does not mean a platform is prohibited from issuing Form 1099-K below the threshold.
Nor does it mean every payment reported on Form 1099-K is automatically taxable profit.
The underlying transaction still matters.
No Form 1099-K Does Not Mean the Income Is Tax-Free
The Form 1099-K reporting threshold determines when a third-party settlement organization generally has an information-reporting obligation.
It does not determine whether the recipient has taxable income.
A self-employed taxpayer who earned $8,000 through a payment platform may still have taxable business income even though the platform did not issue Form 1099-K.
Likewise, receiving Form 1099-K does not mean the entire gross amount is taxable profit.
A business may have processor fees, refunds, chargebacks, cost of goods sold, and deductible expenses.
The IRS emphasizes that taxpayers must report taxable income regardless of whether an information return is received.
Tax returns should be built from financial records.
Information forms should be used to reconcile those records.
The Form 1099-NEC Threshold Did Not Increase for 2025 Payments
Business owners should be careful not to apply a 2026 information-reporting rule one year too early.
For payments made before 2026, the general Form 1099-NEC threshold for qualifying nonemployee compensation remained $600.
For qualifying payments made during 2026, the threshold increased to $2,000, with later years subject to inflation adjustments.
The IRS makes this timing distinction explicit.
Therefore:
a business preparing Forms 1099 for 2025 payments should not use the new $2,000 threshold;
a business tracking 2026 payments should begin applying the new rules for the forms associated with those payments.
Tax-year discipline matters whenever a law changes.
“The federal tax system evolves through legislation, annual inflation adjustments, administrative guidance, and changes in reporting procedures. Each filing season therefore represents more than a repetition of the prior year. Accurate tax preparation requires applying current law to current financial information, making awareness of IRS updates an essential part of responsible compliance.”
Marketplace Health Insurance Still Requires Form 1095-A and Form 8962 Reconciliation
Taxpayers with Marketplace health insurance should continue treating Form 1095-A as an essential filing document.
If advance Premium Tax Credit payments were made, taxpayers generally must reconcile those advance payments using Form 8962.
For tax year 2025, repayment limitations can still reduce the amount of excess advance Premium Tax Credit that certain taxpayers must repay, depending on household income and filing status.
Beginning with tax years after 2025, those repayment caps are removed, meaning excess advance Premium Tax Credit generally must be repaid in full. IRS Premium Tax Credit Q&A
This is a perfect example of why taxpayers should not apply 2026 tax law to a 2025 return.
The return year—not the year in which the return is prepared—controls.
2025 Was the Final Acquisition Period for the Federal Clean Vehicle Credits
Federal clean vehicle credits ended earlier than many taxpayers originally expected.
The New Clean Vehicle Credit, Previously-Owned Clean Vehicle Credit, and Qualified Commercial Clean Vehicle Credit generally are not available for vehicles acquired after September 30, 2025.
A vehicle acquired on or before that date may still qualify if the applicable eligibility and reporting requirements were satisfied. IRS clean vehicle credit termination guidance
Taxpayers who purchased a clean vehicle during 2025 should provide the dealer time-of-sale report and related purchase information.
The expiration date should not cause a qualifying 2025 purchaser to overlook a credit that was still available when the vehicle was acquired.
2025 Is Also the Final Year for Major Residential Energy Credits
Two widely used federal residential energy credits terminate after 2025.
The Residential Clean Energy Credit generally provides a 30% credit for qualifying clean-energy property installed through December 31, 2025. No credit is available for qualifying expenditures made after that date under the current law.
The Energy Efficient Home Improvement Credit can provide up to $3,200 annually under its category limits for qualifying improvements placed in service through December 31, 2025. It is not available for property placed in service after that date. IRS Residential Clean Energy Credit guidance IRS Energy Efficient Home Improvement Credit guidance
A taxpayer who installed qualifying solar panels, batteries, heat pumps, insulation, windows, doors, or other qualifying property during 2025 should not assume the expired future credit means the 2025 benefit disappeared.
The 2025 return can still be the correct year to claim eligible expenditures.
Some 2025 Energy Improvements Require a Qualified Manufacturer Identification Number
For specified property used to claim the Energy Efficient Home Improvement Credit in 2025, the IRS requires taxpayers to report the applicable Qualified Manufacturer Identification Number, or QMID.
This is a new documentation detail for 2025.
The IRS Form 5695 instructions explain that a qualifying item placed in service during 2025 generally must have been produced by a qualified manufacturer and the appropriate four-character QMID must be reported when required.
Homeowners should therefore retain product documentation rather than providing only the contractor’s total invoice.
A $20,000 project may contain several components with different eligibility rules and identification requirements.
Required Minimum Distribution Rules Deserve Renewed Attention in 2025
Traditional IRA owners generally begin required minimum distributions based on the applicable required beginning age.
For taxpayers reaching the modern required beginning age under current law, age 73 is generally relevant.
Inherited retirement accounts can be more complicated.
Final Treasury regulations governing required minimum distributions became applicable beginning with calendar year 2025, and beneficiaries subject to the 10-year rule may have annual distribution obligations in some circumstances—particularly when the original owner died on or after the owner’s required beginning date.
The IRS’s current required minimum distribution guidance explains the owner and beneficiary rules.
Inherited IRAs should therefore be reviewed based on:
the original owner’s date of death;
whether the owner had reached the required beginning date;
the beneficiary’s relationship to the owner;
and whether the beneficiary is an eligible designated beneficiary.
“Empty the account within ten years” is not a complete description of every inherited IRA rule.
Retirement Contribution Limits Increased for 2025
For 2025, the employee elective-deferral limit for most 401(k), 403(b), governmental 457 plans, and the federal Thrift Savings Plan is $23,500.
The ordinary catch-up contribution limit for many participants age 50 or older is $7,500.
IRA contributions generally remain limited to $7,000, or $8,000 for individuals age 50 or older, subject to compensation and eligibility rules. IRS retirement contribution limits
These limits matter during filing because excess contributions can require corrective action and because traditional IRA deductibility and Roth IRA eligibility depend on additional income rules.
Taxpayers should provide contribution records even when Form 5498 has not yet arrived.
Ages 60 Through 63 Received a Higher Workplace Retirement Catch-Up Limit
Beginning in 2025, SECURE 2.0 introduced a higher catch-up contribution limit for certain workers who turn age 60, 61, 62, or 63 during the year.
For most 401(k), 403(b), governmental 457 plans, and the federal Thrift Savings Plan, the 2025 higher catch-up limit is $11,250.
This is greater than the ordinary $7,500 catch-up limit for many participants age 50 or older.
This provision is easy to overlook because it applies only to a narrow age band.
Workers who were 59 or 64 do not use the same enhanced catch-up rule merely because they are near that range.
Health Savings Account Limits Increased for 2025
For tax year 2025, the HSA contribution limit is generally $4,300 for qualifying self-only high-deductible health plan coverage and $8,550 for qualifying family coverage.
Eligibility can depend on the type of health coverage, months of eligibility, Medicare enrollment, and other factors.
Taxpayers with HSAs should provide:
Form 1099-SA for distributions;
Form 5498-SA when available;
Form W-2 information showing employer contributions;
and personal contribution records.
Medical receipts supporting tax-free HSA distributions should also be retained even though they are generally not attached to the return.
Business Owners Can Benefit From Restored 100% Bonus Depreciation
Major 2025 changes also affect self-employed taxpayers and business owners.
Federal law restored 100% additional first-year depreciation for qualifying property acquired after January 19, 2025, subject to the applicable rules.
Certain qualifying property acquired before January 20, 2025, can fall under different depreciation percentages.
The acquisition date therefore matters unusually much for 2025.
The IRS’s 2025 depreciation guidance explains that qualifying property acquired after January 19, 2025, may be eligible for the restored 100% allowance, while certain earlier 2025 property remains subject to the phased-down rules.
A business should not apply one depreciation percentage to every 2025 purchase without checking acquisition and placed-in-service facts.
The Section 179 Limit Increased Substantially for 2025
For tax years beginning in 2025, the maximum federal Section 179 expense deduction increased to $2,500,000.
The deduction begins phasing out when the cost of Section 179 property placed in service during the year exceeds $4,000,000.
The special 2025 Section 179 limitation for certain SUVs is $31,300.
Large dollar limits do not mean every business asset can simply be written off.
Business use, eligible property type, taxable-income limitations, listed-property rules, entity-level elections, and other tax provisions can affect the deduction.
The purchase invoice, financing documents, placed-in-service date, and business-use percentage remain important.
Domestic Research Expenses Can Again Be Currently Deductible Beginning in 2025
Businesses conducting research or experimental activities also received a significant change.
For tax years beginning after December 31, 2024, qualifying domestic research or experimental expenditures can generally be deducted currently.
Taxpayers can alternatively elect qualifying capitalization and amortization treatment under the new rules.
Foreign research expenditures remain subject to different treatment, including a longer amortization period. IRS Working Families Tax Cuts business guidance
This change can be especially significant for technology companies, engineering firms, product developers, manufacturers, and other businesses with substantial research spending.
It can also affect accounting-method decisions and prior domestic research costs.
The Qualified Business Income Deduction Is Now Permanent
The Section 199A Qualified Business Income deduction, commonly called the QBI deduction, was made permanent federally.
Eligible owners of sole proprietorships, partnerships, S corporations, and certain other pass-through activities can continue to receive a deduction generally based on up to 20% of qualified business income, subject to detailed limitations.
For 2025, Form 8995 can generally be used by qualifying taxpayers with taxable income before the QBI deduction of no more than $197,300, or $394,600 for married taxpayers filing jointly, assuming the other eligibility requirements are satisfied.
California continues not to allow the federal QBI deduction.
This creates another federal-versus-state difference business owners must understand.
California Generally Does Not Conform to the Major 2025 Federal Law Changes
California enacted Senate Bill 711 in October 2025, updating its general specified Internal Revenue Code conformity date from January 1, 2015, to January 1, 2025.
But Public Law 119-21 was enacted in July 2025—after the state’s specified conformity date.
FTB therefore explains that California generally does not conform to the major new federal law provisions enacted in that legislation.
FTB specifically identifies nonconformity to provisions including:
the federal qualified tips deduction;
qualified overtime deduction;
qualified passenger vehicle loan interest deduction;
the federal SALT limitation changes;
and other provisions. FTB summary of federal income-tax changes
This makes Schedule CA especially important for California filers.
California Has Its Own 2025 Standard Deduction
California’s 2025 standard deduction is not the same as the federal standard deduction.
For 2025, California’s general standard deduction is:
$5,706 for single taxpayers or married/registered domestic partner taxpayers filing separately;
and $11,412 for married/RDP filing jointly, head of household, or qualifying surviving spouse.
California therefore does not simply start with the federal $15,750, $23,625, or $31,500 standard deduction.
This is one reason a taxpayer can itemize federally and use a different deduction method in California—or vice versa—depending on the facts and California rules.
Federal tax software may calculate this automatically.
Taxpayers should still understand why the two returns can show very different deduction amounts.
California Added a Military Retirement Exclusion for 2025
California has an important state-specific change beginning in 2025.
For tax years beginning on or after January 1, 2025, and before January 1, 2030, California law allows qualifying taxpayers to exclude up to $20,000 of qualifying military retirement pay or certain Department of Defense Survivor Benefit Plan annuity payments, subject to the state’s eligibility rules.
FTB includes this new exclusion in the 2025 Schedule CA instructions.
This is separate from the federal changes discussed throughout this article.
California veterans and surviving beneficiaries should therefore identify qualifying military retirement payments specifically rather than assuming the state return simply follows the federal pension calculation.
The New Federal Deductions Can Change Refunds Even When Withholding Did Not Change
Some taxpayers may wonder why their 2025 refund is unexpectedly larger—or why the balance due is smaller—than prior projections.
One reason is timing.
Several major deductions became law during 2025, after employers had already withheld federal tax for part of the year.
The IRS did not require complete redesign of 2025 Forms W-2 and information reporting to separately state every new deduction amount.
As a result, the benefit may not have been fully reflected in paychecks during 2025 and can instead appear when the tax return is filed.
The IRS has specifically noted that retroactive 2025 provisions can change taxpayers’ 2025 tax bills or refunds.
A larger refund should still be reconciled.
It should not be assumed automatically that every new deduction was calculated correctly.
The IRS Withholding Estimator Was Updated for the New Law
The IRS updated its Tax Withholding Estimator during 2026 to reflect major new deductions and credit changes.
The estimator now incorporates items including:
qualified tips;
qualified overtime;
qualified passenger vehicle loan interest;
the enhanced senior deduction;
and other family and deduction changes.
The tool is designed to help taxpayers adjust current withholding for future tax obligations. IRS Tax Withholding Estimator update
This matters after the 2025 return is prepared.
A tax return should not simply close the prior year.
It can reveal whether 2026 withholding or estimated payments should be changed.
Taxpayers on Extension Still Have Until October 15, 2026, to File a Timely 2025 Federal Return
For most calendar-year individuals, the original federal 2025 income-tax filing and payment deadline was April 15, 2026.
Taxpayers who timely requested a valid six-month federal extension generally have until October 15, 2026 to file the 2025 Form 1040.
The extension applies to filing—not to the original tax-payment deadline. IRS extension guidance
For taxpayers reading this article during extension season, that date should not be treated as the day to start gathering records.
It is the date by which the filing process generally needs to be completed.
California’s Individual Filing Extension Is Automatic—but Payment Was Still Due in April
California’s extension system differs from the federal procedure.
California automatically grants qualifying individual taxpayers a six-month extension to file the 2025 California return through October 15, 2026.
No separate California filing-extension application is generally required solely to obtain the additional filing time.
However, California tax due for 2025 was still generally payable by April 15, 2026. California FTB extension guidance
A taxpayer can therefore have a timely California return in October and still owe interest or penalties associated with an unpaid April balance.
Filing and payment are separate compliance questions.
Taxpayers Should Revisit Documents Because 2025 W-2s May Not Tell the Entire Story
The new law increased the importance of supporting records.
A typical 2025 tax file may now need more than the traditional W-2 and Forms 1099.
Depending on the taxpayer, additional records can include:
pay stubs showing qualified overtime;
tip records;
employer statements;
vehicle purchase and loan documents;
VIN and final assembly information;
energy-property manufacturer information;
Form 1095-A;
IRA beneficiary information;
retirement contribution statements;
and records establishing California adjustments.
The IRS specifically published special guidance describing the records taxpayers may need for the new 2025 Schedule 1-A deductions.
TaxMax Services’ broader article on preparing source documents explains why the return should be built from the taxpayer’s full financial history rather than only forms that happened to arrive in the mail.
IRS Online Account Is Becoming More Important for Filing and Post-Filing Verification
The IRS increasingly allows individuals to access tax information through their secure online account.
Taxpayers can use the account to review balances, payment history, certain tax records, transcripts, and other account information.
In 2026, taxpayers can also use IRS online services to make Trump Account elections.
For individuals making estimated payments or extension payments, online account access can be especially useful for verifying that payments were posted to the intended tax year. IRS Individual Online Account
Taxpayers should still retain independent records.
Government account access is a reconciliation tool, not a substitute for the return, source documents, and payment confirmations.
Wage and Income Transcripts Can Help Identify Missing Forms—but They Have Limits
An IRS Wage and Income Transcript can help identify information reported to the IRS on Forms W-2, 1098, 1099, 5498, and certain other information returns.
This can be useful for taxpayers who changed addresses, lost documents, or are unsure whether an old employer or financial account produced a form.
But the transcript does not contain every tax fact.
It may not provide full investment basis.
It does not contain business expenses.
It does not replace mileage logs.
It does not show private transactions the IRS never received.
And federal wage transcripts do not necessarily supply the California state wage and withholding detail needed for the state return.
The transcript is therefore a cross-check, not a complete tax return. IRS transcript access
New Tax Benefits Have Also Created New Scam Opportunities
Whenever tax law changes, refund-related misinformation tends to increase.
Taxpayers should be cautious about social media claims suggesting that everyone qualifies for a large new deduction or that a new law creates an automatic refund.
The new Schedule 1-A deductions all contain eligibility rules.
Not every tip qualifies.
Not every overtime payment qualifies.
Not every vehicle loan qualifies.
Not every senior receives the full $6,000 deduction.
The IRS continues to warn taxpayers about fraudulent tax promotions, false credit claims, phishing, impersonation scams, and schemes promising unusually large refunds. IRS tax scam guidance
The existence of a new deduction does not eliminate the need for documentation.
In many cases, it makes documentation more important.
Practical Example: How the 2025 Changes Can Affect One California Family
Consider a hypothetical married California couple, David and Laura. This example is entirely fictional and does not represent a TaxMax Services client.
David is age 67.
Laura is age 61 and works as an hourly employee.
They own a home in California.
Laura earned substantial overtime during 2025.
They purchased a new qualifying personal vehicle in February 2025 using financing.
They paid California income tax and substantial property tax.
Their adult daughter gave birth to a child during 2025, but David and Laura do not claim the grandchild.
David also operates a small consulting business.
The federal standard deduction
Because the couple files jointly, their basic 2025 federal standard deduction is $31,500.
David is over age 65, so the existing additional age-based standard deduction may also apply.
The enhanced senior deduction
David may qualify for the new $6,000 enhanced senior deduction if the couple satisfies the income and other requirements.
This deduction is separate from the age-based standard deduction.
Laura’s overtime
Laura’s payroll records show $14,000 labeled as overtime.
But not all $14,000 necessarily qualifies.
Her preparer determines which portion represents FLSA-required overtime premium above her regular rate.
Suppose $5,000 is qualified overtime compensation under the federal rule.
That amount—not the full $14,000—is evaluated for Schedule 1-A.
Vehicle loan interest
The couple’s vehicle was purchased new in 2025.
Its original use began with them.
The loan is secured by the vehicle.
The vehicle satisfies the applicable U.S. final-assembly and weight requirements.
Their lender records show $4,800 of qualifying interest paid during 2025.
Subject to their modified adjusted gross income and the remaining requirements, that amount may be deductible on Schedule 1-A.
SALT
David and Laura paid $18,000 of California income tax and $15,000 of qualifying property tax.
Their combined potential federal SALT amount is $33,000.
Under the old $10,000 cap, much of that amount would not have been deductible.
Under the 2025 federal rules, the higher limit can make itemizing much more competitive, depending on their income and other deductions.
The California return
The couple cannot simply copy every new federal deduction into California taxable income.
California generally does not conform to the federal qualified overtime, vehicle-loan interest, enhanced senior, and SALT changes enacted after January 1, 2025.
Schedule CA adjustments are therefore required where applicable.
David’s business
David purchased $30,000 of qualified business equipment in August 2025.
Because the property was acquired after January 19, 2025, the restored federal bonus depreciation rules may be relevant.
But the deduction still requires analysis of business use, asset type, placed-in-service date, and California depreciation differences.
The lesson
This one family’s return contains:
federal standard-deduction changes;
a senior deduction;
overtime analysis;
personal vehicle-loan interest;
higher federal SALT limits;
California nonconformity;
and business depreciation.
Simply entering two W-2s and a profit-and-loss statement would not fully address the 2025 law changes.
That is why this filing season requires year-specific tax review, not merely document entry.
Common Mistake: Assuming “No Tax on Tips” Means All Tips Are Tax-Free
Qualified tips remain reportable income.
The new provision generally provides an income-tax deduction for qualifying tips.
It does not mean tip income should disappear from Form W-2, Schedule C, Form 4137, or other applicable reporting.
The deduction is also limited by:
the occupation;
the character of the tip;
income phaseouts;
filing status;
Social Security number requirements;
and the statutory maximum.
A taxpayer who simply subtracts all tip income from gross income risks filing an incorrect return.
Common Mistake: Deducting Every Dollar of Overtime Pay
The federal overtime deduction is narrower than the label suggests.
For time-and-a-half compensation required by the FLSA, the qualified portion is generally the premium above the regular rate.
That means an employee earning $20 per hour and receiving $30 for a qualifying overtime hour does not ordinarily have $30 of qualified overtime compensation for purposes of the deduction.
The deductible overtime component is generally the extra $10 premium attributable to the FLSA requirement.
State-law premiums and contractual overtime require separate analysis.
For California workers, this is one of the most important filing distinctions of 2025.
Common Mistake: Deducting Interest on Any Automobile Loan
The new vehicle interest deduction does not apply to every car payment.
Common disqualifying circumstances can include:
a used vehicle whose original use did not begin with the taxpayer;
a vehicle purchased before 2025;
a loan originated before January 1, 2025;
a lease;
a vehicle that does not satisfy the final-assembly requirement;
or interest attributable to a vehicle used commercially rather than under the personal-use provisions.
The deduction also has an income phaseout.
Taxpayers should verify eligibility before assuming their annual lender interest statement creates a deduction.
Common Mistake: Treating the Senior Deduction as “No Tax on Social Security”
The senior deduction can reduce federal taxable income.
It does not eliminate the need to report Social Security benefits.
It also does not guarantee a $6,000 tax reduction.
A deduction reduces taxable income.
A credit generally reduces tax itself.
Those concepts are different.
For example, a $6,000 deduction does not ordinarily reduce tax by $6,000. The actual tax effect depends on the taxpayer’s broader tax calculation.
Clear terminology helps taxpayers understand the real financial benefit.
Common Mistake: Assuming California Automatically Follows Federal Tax Law
California uses federal tax information as a starting point for many calculations.
That does not mean every federal change automatically becomes California law.
The new 2025 federal tip, overtime, vehicle interest, senior, and SALT provisions are particularly important examples of nonconformity.
California taxpayers may therefore see an adjustment on Schedule CA that reverses part of the federal benefit for state purposes.
A return can be completely correct while federal taxable income and California taxable income differ materially.
That difference should be explained rather than “fixed” merely to make both returns match.
Common Mistake: Believing No Form 1099-K Means No Income Needs to Be Reported
The restored $20,000-and-200-transaction reporting threshold has created another misconception.
The threshold governs a third-party platform’s reporting requirement.
It does not create a federal income-tax exemption for smaller sellers or service providers.
A consultant who earns $15,000 through a payment app may have reportable business income even when no Form 1099-K is issued.
A taxpayer should determine income from actual business activity.
Government information reporting is a compliance cross-check—not the definition of taxable revenue.
Common Mistake: Applying the New $2,000 Form 1099-NEC Threshold to 2025 Payments
The $2,000 threshold begins with qualifying 2026 payments.
Qualifying payments made during 2025 generally remain subject to the previous $600 information-reporting threshold.
Businesses preparing contractor forms must therefore separate the payment year from the filing year.
A Form 1099-NEC prepared in early 2026 for work paid during 2025 follows the 2025 payment rules.
The fact that the form is prepared during calendar year 2026 does not make the new $2,000 threshold applicable retroactively.
Common Mistake: Assuming Expired Energy Credits Cannot Be Claimed on a 2025 Return
A credit can expire for future purchases while still being available for qualifying prior-year expenditures.
The federal residential clean-energy and energy-efficient home-improvement credits generally end after 2025.
That means a qualifying 2025 solar installation, heat pump, battery, window, door, or other improvement may still produce a federal credit on the 2025 return.
The expiration becomes relevant to 2026 expenditures, not to an otherwise qualifying 2025 transaction.
Taxpayers should preserve the 2025 invoices and product information rather than discard them because they heard the credit “ended.”
Common Mistake: Assuming Every 2025 Tax Change Appears Automatically on a W-2 or 1099
Tax forms are important.
They are not complete financial histories.
This is particularly obvious for the new tip and overtime deductions.
The 2025 information-return system was operating under transition relief, so the taxpayer may need payroll documentation beyond the W-2.
The same principle applies elsewhere:
investment basis may require brokerage supplements;
vehicle-loan eligibility requires purchase information;
energy credits require product documentation;
HSA distributions require medical records;
business deductions require bookkeeping.
Tax forms report data.
Tax preparation interprets the underlying transaction.
A Practical 2025 Return Review Checklist Before Filing
Before authorizing a 2025 federal and California return, taxpayers can use the following targeted review:
- Confirm that every expected W-2, 1099, Schedule K-1, 1095-A, 1099-R, and brokerage statement has been included.
- Review whether the taxpayer received qualifying tips during 2025.
- Review whether FLSA-qualified overtime was earned and obtain payroll records if necessary.
- Determine whether the taxpayer paid qualifying interest on a personal vehicle loan originated after December 31, 2024.
- Check whether either spouse was age 65 or older by December 31, 2025.
- Compare the federal standard deduction with itemized deductions using the new $40,000 SALT framework.
- Confirm Child Tax Credit Social Security number requirements.
- Review adoption expenses when applicable.
- Obtain Form 1095-A before filing if Marketplace insurance was used.
- Review any 2025 clean vehicle purchase made on or before September 30.
- Gather documentation for 2025 residential energy improvements.
- Review RMD and inherited-IRA obligations.
- Verify IRA, HSA, and employer retirement contributions against the 2025 limits.
- For businesses, identify qualifying property acquired after January 19, 2025, for bonus depreciation analysis.
- Review Section 179 and research expenditures where applicable.
- Reconcile Form 1099-K with actual income instead of reporting it blindly.
- Apply the correct 2025 threshold to contractor information returns.
- Identify every federal provision that California does not follow and complete Schedule CA correctly.
- Verify federal and California estimated and extension payments.
- Compare the completed return with the prior-year return to identify unexplained missing accounts, properties, businesses, dependents, or carryforwards.
The purpose of this review is not to maximize the number of deductions on the return.
It is to make sure the taxpayer receives the benefits that actually apply while maintaining enough documentation to support them.
When Professional Review Becomes Especially Important
The 2025 return can become substantially more complicated when several new provisions overlap.
Professional review may be particularly useful when a taxpayer has:
substantial tip income;
multiple employers with overtime;
California daily overtime;
a new vehicle financed in 2025;
high state and local taxes;
large capital gains;
Marketplace insurance;
an inherited IRA;
a business purchasing significant equipment;
research expenditures;
multiple states;
S corporation or partnership income;
rental property;
international reporting;
or prior-year carryforwards.
The issue is not merely that these situations involve more forms.
They often involve interaction among several rules.
For example, income affects the phaseout of the tip, overtime, senior, vehicle-interest, and SALT deductions.
A business equipment purchase can affect federal depreciation differently from California depreciation.
A large capital gain can influence both itemized deduction limitations and Premium Tax Credit calculations.
A complete return therefore requires understanding relationships among the numbers rather than evaluating every tax form in isolation.
How TaxMax Services Approaches a Filing Season With Major Law Changes
At TaxMax Services, changing tax law is integrated with the broader preparation process.
The objective is not simply to identify a new deduction by name.
The taxpayer’s facts, documents, federal return, California return, bookkeeping, prior-year history, and applicable supporting records need to fit together.
A taxpayer claiming qualified overtime may need detailed payroll records.
A business using accelerated depreciation needs accurate asset records.
A California taxpayer claiming federal Schedule 1-A deductions needs state adjustments.
A taxpayer with large itemized deductions should reconsider the standard-versus-itemized calculation because the SALT limitation changed.
A family with Marketplace insurance needs Form 1095-A regardless of how many other new deductions apply.
Readers who want additional context on maintaining a stronger year-round compliance system can review TaxMax Services’ How Businesses Stay Compliant Through Organized Financial Systems. Taxpayers who want to understand the value of professional filing review can also explore Why Working With a Professional Tax Preparer Matters.
The tax law may change during the year.
The underlying discipline remains the same:
identify the transaction;
collect the documentation;
apply the correct tax-year rule;
reconcile the result;
and distinguish federal treatment from California treatment.
The Biggest 2026 Filing Change Is the Need to Re-Evaluate Old Assumptions
The 2025 federal tax return is not simply another annual filing cycle.
Several assumptions that were safe on older returns may now produce the wrong answer.
A senior’s deduction is different.
A tipped worker’s deduction is different.
Overtime requires a new federal analysis.
Some personal vehicle interest can now be deductible.
The federal SALT ceiling is dramatically higher.
The Child Tax Credit increased.
Part of the Adoption Credit became refundable.
The Form 1099-K threshold changed again.
Trump Accounts introduced a new election.
Federal clean vehicle credits ended during 2025.
Residential energy credits reached their final year.
Inherited retirement account rules deserve renewed attention.
Business depreciation and research-expense rules changed materially.
And California does not follow many of these federal changes.
The larger lesson is not that every taxpayer needs every new provision.
Most will not.
The important lesson is that taxpayers should no longer assume the 2024 filing logic automatically produces the correct 2025 return.
A taxpayer who received overtime should ask whether it is FLSA-qualified.
A taxpayer with tips should verify the occupation and the amount.
A vehicle owner should determine when the loan originated, whether the vehicle was new, and where final assembly occurred.
A homeowner should rerun the itemized-deduction comparison.
A retiree should distinguish the new senior deduction from the ordinary taxation of Social Security.
A California taxpayer should expect federal and state differences.
A business owner should review asset acquisition dates carefully.
And every taxpayer should remember that a tax benefit is strongest when the documentation supporting it already exists.
The purpose of understanding the 2026 IRS tax updates is not to chase every new deduction.
It is to make sure the return reflects the law that actually applies to the taxpayer’s 2025 financial life.
Tax law changes.
Accurate records, thoughtful review, and disciplined tax preparation remain the foundation.
Frequently Asked Questions About Key IRS Updates Every Taxpayer Should Know Before Filing
1. What are the biggest federal tax changes affecting 2025 returns filed in 2026?
Some of the most significant changes include the new Schedule 1-A deductions for qualified tips, qualified overtime, qualifying personal vehicle-loan interest, and eligible seniors; a higher federal standard deduction; a higher federal SALT deduction limit; an increased Child Tax Credit; partial refundability of the Adoption Credit; a restored Form 1099-K reporting threshold; changes affecting clean vehicle and residential energy credits; and substantial business depreciation and research-expense changes.
Not every provision applies to every taxpayer.
The first step is identifying which changes relate to the taxpayer’s actual 2025 activity.
2. What is Schedule 1-A?
Schedule 1-A is a new federal schedule for 2025 Form 1040-series returns.
It calculates the new deductions for:
qualified tips;
qualified overtime compensation;
qualified passenger vehicle loan interest;
and the enhanced deduction for seniors.
The total qualifying amount is then incorporated into the individual federal income-tax calculation.
These deductions can generally be available whether the taxpayer itemizes deductions or uses the standard deduction.
3. Are all tips now tax-free?
No.
Tip income remains reportable.
Eligible taxpayers may receive a deduction for qualifying tips under the new federal provisions.
The deduction is subject to occupation requirements, income limitations, filing-status rules, Social Security number requirements, and a maximum annual deduction of $25,000.
The tax result should therefore be reported as income first and then evaluated for the applicable deduction.
4. Can I deduct all of my overtime pay?
Generally, no.
For the new federal deduction, qualified overtime generally means the portion of overtime pay above the regular rate that is required under Section 7 of the Fair Labor Standards Act.
For a time-and-a-half employee, that often means the “half” premium rather than the entire overtime wage.
Overtime paid only because of state law, an employer policy, or a union agreement may not qualify when it was not required by the federal FLSA.
This distinction is especially important for California employees.
5. Does California daily overtime qualify for the federal deduction?
Not automatically.
California can require overtime after eight hours in a workday even when the employee has not worked more than 40 hours during the federal workweek.
The federal deduction is tied to overtime required under the FLSA.
Accordingly, the California-required premium must be analyzed to determine what portion, if any, is also FLSA-required qualified overtime.
Do not simply total every California overtime line from the pay stub.
6. Can I deduct the interest on my existing car loan?
Only if the loan and vehicle satisfy the new federal requirements.
Among other conditions, the loan generally must have originated after December 31, 2024, and financed an eligible vehicle whose original use began with the taxpayer.
The vehicle must generally be for personal use, secured by the qualifying loan, meet the applicable weight requirement, and have final assembly in the United States.
Used vehicles and leases generally do not qualify for this new deduction.
The annual deduction is capped at $10,000 and is subject to an income phaseout.
7. Is the new senior deduction the same as making Social Security tax-free?
No.
The new provision generally allows eligible individuals age 65 or older an additional federal deduction of up to $6,000 per qualifying person.
It does not simply exclude Social Security benefits from income.
Social Security should still be reported under the existing federal rules.
The senior deduction is then applied separately when the taxpayer qualifies.
It is also in addition to the existing age-based standard deduction.
8. What is the federal standard deduction for 2025?
For 2025, the basic federal standard deduction is generally:
$15,750 for single and married filing separately;
$23,625 for head of household;
and $31,500 for married filing jointly or qualifying surviving spouse.
Additional amounts can apply for age or blindness.
Eligible seniors may also qualify for the separate enhanced senior deduction through Schedule 1-A.
9. How much can I deduct for state and local taxes in 2025?
For federal purposes, the 2025 SALT deduction limit increased to $40,000, or $20,000 for married taxpayers filing separately.
The limit begins decreasing for taxpayers with modified adjusted gross income above $500,000, or $250,000 for married filing separately, but is generally not reduced below the applicable $10,000 or $5,000 floor.
Only taxpayers who itemize receive the SALT deduction.
California’s own tax-return rules do not simply adopt the new federal limitation.
10. What is the Child Tax Credit for 2025?
The federal Child Tax Credit is worth up to $2,200 per qualifying child for 2025.
The refundable Additional Child Tax Credit can be as much as $1,700 per qualifying child, subject to the applicable rules.
Identification requirements changed as well.
The taxpayer or qualifying spouse and the qualifying child must satisfy the applicable Social Security number requirements by the due date of the return, including extensions.
Families with newly issued Social Security numbers should review these timing rules carefully.
11. Did the Form 1099-K threshold change again?
Yes.
For third-party settlement organizations such as qualifying payment apps and online marketplaces, the general federal reporting threshold was restored to payments exceeding $20,000 and more than 200 transactions.
The threshold affects the platform’s obligation to issue Form 1099-K.
It does not determine whether the recipient has taxable income.
Taxable business income must still be reported even when no 1099-K is issued.
12. Did the Form 1099-NEC contractor threshold increase to $2,000?
Yes, but the timing matters.
For qualifying payments made during 2025, the general $600 threshold still applies.
The new $2,000 threshold applies to qualifying payments made in 2026.
Businesses preparing 2025 Forms 1099-NEC should therefore not apply the new threshold prematurely.
13. Can I still claim the clean vehicle credit on my 2025 return?
Potentially.
Federal new, previously owned, and commercial clean vehicle credits generally are unavailable for vehicles acquired after September 30, 2025.
A vehicle acquired on or before September 30, 2025, can still qualify when the applicable requirements were satisfied.
Provide the purchase documentation and dealer time-of-sale report so the transaction can be reviewed under the rules in effect when the vehicle was acquired.
14. Can I still claim a federal solar or home energy credit for 2025?
Potentially, yes.
The Residential Clean Energy Credit and Energy Efficient Home Improvement Credit generally remain available for qualifying 2025 expenditures or qualifying property placed in service during 2025.
Under current federal law, those credits are no longer available for qualifying expenditures or property after December 31, 2025.
For some 2025 energy-efficient property, taxpayers must also provide the required Qualified Manufacturer Identification Number.
15. What changed for inherited IRAs?
The federal final required minimum distribution regulations became applicable beginning in 2025.
The result depends heavily on the beneficiary category, when the original owner died, and whether the owner died before or after the required beginning date.
Some beneficiaries subject to the 10-year rule may also have annual RMD obligations during the ten-year period.
An inherited IRA should therefore be reviewed individually rather than assuming the only rule is to empty the account by year ten.
16. What changed for retirement contributions in 2025?
The general 2025 employee elective-deferral limit for many 401(k), 403(b), governmental 457 plans, and the federal Thrift Savings Plan is $23,500.
The ordinary catch-up amount for many eligible individuals age 50 or older is $7,500.
A higher $11,250 catch-up limit can apply to qualifying participants who turn ages 60 through 63 during 2025.
The IRA contribution limit remains generally $7,000, or $8,000 for individuals age 50 or older, subject to the applicable eligibility rules.
17. Did California adopt the new federal tip, overtime, vehicle-interest, and senior deductions?
Generally, no.
California’s specified federal conformity date was updated to January 1, 2025, but the major federal legislation creating these deductions was enacted later in 2025.
FTB therefore identifies California nonconformity to several of the new federal provisions.
California taxpayers may need Schedule CA adjustments even though the deductions are correctly claimed on the federal return.
18. If I filed an extension, when is my 2025 federal individual return due?
For most calendar-year individuals who timely obtained a valid six-month federal extension, the 2025 Form 1040 is due October 15, 2026.
The extension increased the time to file.
It did not generally extend the April 15, 2026, deadline for paying 2025 federal tax.
California generally provides qualifying individuals an automatic filing extension to the same October 15 date, but California tax was also generally due in April.
19. What should I review before signing my 2025 tax return?
Review more than the refund or balance due.
Confirm that all income forms were included.
Review Schedule 1-A eligibility.
Check dependent information.
Verify estimated and extension payments.
Review investment basis.
Confirm Marketplace insurance reporting.
Check business and rental depreciation.
Review inherited IRA activity where applicable.
Compare federal and California adjustments.
Finally, compare the current return with the prior-year return to identify businesses, properties, accounts, dependents, or carryforwards that disappeared unexpectedly.
A signed tax return represents the taxpayer’s filing.
It deserves a full review.
20. Where can I learn more or get help with the 2026 IRS tax updates before filing?
The TaxMax Services blog provides educational resources on individual and business tax preparation, IRS compliance, California taxation, accounting, bookkeeping, payroll, business formation, rental property, tax notices, and financial recordkeeping.
If you are preparing a 2025 federal or California return and need help determining whether the new tip, overtime, senior, vehicle-interest, SALT, family-credit, energy, retirement, investment, or business provisions apply to your circumstances, TaxMax Services can assist with tax preparation and related accounting, bookkeeping, payroll, and compliance matters based on the scope of your engagement.
We invite you to continue exploring the TaxMax Services educational library, review our related federal and California tax resources, contact TaxMax Services when professional assistance may be appropriate, and become part of the growing TaxMax Services community.
Tax law can change quickly.
The strongest response is not to memorize every new provision.
It is to maintain accurate records, understand which changes apply to your situation, verify current rules before filing, and prepare a return that reflects both the law and the financial facts behind it.
