✦ Tax years 2025–2028OBBBA DeductionsFlows to Form 1040
The Comprehensive Guide to IRS Schedule 1-A & OBBBA Deductions
Updated May 2026·Attached to Form 1040·W-2, 1099, LLC, self-employed·Educational only
Estimate new Schedule 1-A deductions for tips, overtime, car loan interest, and seniors using TaxSaveIQ's free educational calculator. Schedule 1-A is a new IRS form that consolidates four new deductions enacted under OBBBA — they flow to Form 1040 and may reduce taxable income whether or not you itemize. Verify exact treatment with IRS instructions or a qualified tax professional.
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Key fact: Schedule 1-A additional deductions are calculated separately from Schedule 1 adjustments and flow to Form 1040 under the applicable tax-year instructions. They reduce taxable income rather than AGI and can be claimed whether a taxpayer itemizes or uses the standard deduction. Verify exact treatment with IRS instructions or a qualified tax professional.
What is IRS Schedule 1-A?
According to IRS guidance, Schedule 1-A is used to calculate and claim new additional deductions created under the One Big Beautiful Bill Act (OBBBA). Taxpayers attach Schedule 1-A to Form 1040, 1040-SR, or 1040-NR for tax years 2025 through 2028 under current federal law. Congress may extend, modify, or allow these provisions to expire after 2028.
The total additional deductions calculated on Schedule 1-A flow to Form 1040— as “Additional deductions from Schedule 1-A.” Schedule 1-A additional deductions flow to Form 1040 under the applicable tax-year instructions and may reduce taxable income. They are separate from Schedule 1 adjustments and can be claimed whether the taxpayer takes the standard deduction or itemizes. Verify exact treatment with IRS instructions or a qualified tax professional.
These deductions can be claimed whether the taxpayer uses the standard deduction or itemizes — they are not affected by the choice between Schedule A itemized deductions and the standard deduction.
Form 1040 flow (simplified): Gross Income → adjustments to income → AGI → Standard or Itemized Deduction and Schedule 1-A deductions → Taxable Income → federal tax brackets. These are additional deductions available to eligible taxpayers whether they itemize or claim the standard deduction — they reduce taxable income, not AGI. The combined Schedule 1-A total flows to Form 1040 under the applicable tax-year instructions. Verify exact treatment with IRS instructions or a qualified tax professional.
The four Schedule 1-A deduction categories
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No Tax on Qualifying Tips
Schedule 1-A · Part II · OBBBA Pub. L. 119-21
Workers in eligible tip industries — food service, hospitality, beauty, personal care, and delivery — can deduct qualifying tip income they received and reported on their wages. Both cash and charged tips count if properly tracked and documented.
Annual cap: $25,000. Tips must be reported on W-2 Box 7 or Schedule C. Maintain a daily tip diary for cash tips. Occupation must qualify as tip-eligible under IRS guidance. Married taxpayers must file jointly. Income phaseouts may apply.
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No Tax on Overtime Pay
Schedule 1-A · Part III · OBBBA Pub. L. 119-21
The premium portion of overtime pay — the extra 0.5× above the regular hourly rate for hours over 40 per week under FLSA — is deductible. Only the premium (the “half” in “time-and-a-half”) qualifies, not the entire overtime wage.
Cap: $12,500 single / $25,000 MFJ. Bonuses and shift differentials do not qualify. Married taxpayers must file jointly. Employer must separately identify OT premium on W-2 or provide a qualifying payroll statement.
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Car Loan Interest Deduction
Schedule 1-A · Part IV · OBBBA Pub. L. 119-21
Interest paid on a loan for a new passenger vehicle that was final-assembled in the United States may be deducted whether you itemize or claim the standard deduction. Applies to personal-use vehicles only, where the loan is secured by the vehicle.
Cap: $10,000 per year. Vehicle must be US-assembled (verify via NHTSA VIN decoder). Loan generally must have originated after Dec. 31, 2024, and must meet IRS qualified passenger vehicle loan requirements. MAGI phase-out begins at $100,000 (single) or $200,000 (MFJ). Married taxpayers must file jointly. Verify vehicle, loan, VIN, personal-use, and reporting requirements with IRS instructions.
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Enhanced Senior Deduction
Schedule 1-A · Part V · OBBBA Pub. L. 119-21
Taxpayers who are 65 or older on December 31 of the tax year may claim an additional Schedule 1-A deduction, separate from both the standard deduction and the existing over-65 standard deduction add-on. Verify eligibility with IRS instructions.
$6,000 per eligible individual— $12,000 for a married couple where both spouses are 65 or older. Reduced by 6% of MAGI above $75,000 (single) or $150,000 (MFJ), applied to each qualifying person's own $6,000. Reaches zero at $175,000 (single) and $250,000 (joint). Married taxpayers must file jointly. Verify exact limits with IRS instructions.
Schedule 1-A deduction estimator — free, no login required
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Schedule 1-A Deduction Estimator
Simplified educational estimate · No login required · Not tax advice
Filing Details
Tax Year
Schedule 1-A deductions are available for tax years 2025 through 2028 under current federal law. This estimator currently supports 2025 and 2026.
Filing Status
Estimated MAGI / AGI (before Schedule 1-A)
Used to calculate the senior deduction phase-out. Leave 0 if not applicable.
Schedule 1-A Deduction Amounts
💚 Qualified Tips Received
Cap: $25,000 · Tip-eligible occupations only
⏰ Overtime Premium Pay
Cap: $12,500 (single/HoH) · FLSA premium portion only
$6,000 per qualifying person · reduced by 6% of MAGI over $75k, applied to each person's own $6,000
Your Approximate Marginal Federal Rate
Used to estimate federal income tax impact. For a more accurate marginal rate, use the full federal calculator.
Schedule 1-A · Estimated Deductions
💚 Tips deduction (Part II)$0
⏰ Overtime deduction (Part III)$0
🚗 Car loan interest (Part IV)$0
🎖️ Senior deduction (Part V)$0
Schedule 1-A total → Form 1040
Tentative Schedule 1-A deduction — reduces taxable income, claimed in addition to your standard or itemized deduction
$0
Simplified educational estimate. Tax year 2026 · reviewed 2026-07-19. The senior deduction follows IRC § 151(d)(5)(C): $6,000 per qualified individual, reduced by 6% of MAGI above $75,000 ($150,000 joint), applied to each qualifying person separately. Married taxpayers must file jointly to claim the Schedule 1-A deductions. MAGI phaseouts for tips and overtime are simplified pending final IRS instructions, and MAGI is approximated by AGI. Results are estimates and depend on eligibility — verify with the IRS Schedule 1-A instructions or a qualified tax professional. Does not save data or connect to any account.
Free · No account required · Includes all OBBBA deductions
Example walkthrough — real numbers
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Maria — server & rideshare driver, single, age 34
Tax year 2026 · Gross income $74,000
1
Calculate qualifying tip income (Part II)
Maria earned $18,400 in tips at a restaurant — a qualifying tip-eligible occupation. All tips were reported on her W-2 Box 7. The $25,000 cap is not exceeded.
Tips received: $18,400
Cap: $25,000
Part II deduction: $18,400
2
Identify overtime premium pay (Part III)
Her pay stubs show $3,200 in FLSA overtime premium — the extra 0.5× portion for hours over 40/week. Her employer confirmed this is separately identified as required.
OT premium received: $3,200
Cap (single): $12,500
Part III deduction: $3,200
3
Auto loan interest from Form 1098-VLI (Part IV)
Maria financed a US-assembled Honda Civic in March 2026. Her lender's Form 1098-VLI shows $2,750 in interest paid during the year.
Interest paid: $2,750
Cap: $10,000
Part IV deduction: $2,750
4
Senior deduction — not applicable (Part V)
Maria is 34 years old and does not qualify for the enhanced senior deduction.
Age as of Dec 31, 2026: 34 — does not meet 65+ threshold
Part V deduction: $0
5
Total Schedule 1-A → Form 1040 → taxable income
The three deductions are totalled in Part VI and carried to Form 1040. They are claimed in addition to the standard or itemized deduction and reduce taxable income — they do not reduce AGI. Verify exact treatment with IRS instructions.
Schedule 1-A total: $18,400 + $3,200 + $2,750 = $24,350
AGI: $74,000
Standard deduction: −$16,100 (est. 2026)
Schedule 1-A total: −$24,350
Taxable income: $33,550Without Schedule 1-A: taxable income would be ~$57,900
Estimated tax savings: ~$3,400–$5,600(22–24% bracket)
How Schedule 1-A Flows into Form 1040
Schedule 1-A additional deductions flow to Form 1040 under the applicable tax-year instructions and may reduce taxable income. They are separate from Schedule 1 adjustments and can be claimed whether the taxpayer uses the standard deduction or itemizes. Verify exact treatment with IRS instructions or a qualified tax professional.
It is important not to mix Schedule 1-A deductions with Schedule 1 adjustments unless IRS instructions specifically direct you to do so. Schedule 1 handles other above-the-line adjustments (student loan interest, HSA deductions, alimony) and is a separate form from Schedule 1-A.
Form 1040 sequence (simplified):
Report total income on Form 1040
Subtract Schedule 1 adjustments to income
Subtract Schedule 1-A total ← new
Subtract Standard or Itemized Deduction
= Taxable Income → apply federal tax brackets
Exact treatment: verify with IRS instructions or a qualified tax professional
Deduction Limits & Phase-Outs
Each Schedule 1-A deduction has its own annual cap. Income phase-outs may reduce or eliminate the deduction at higher MAGI levels. The following limits reflect current understanding of the OBBBA rules — verify with IRS instructions or a qualified tax professional as final guidance may be updated:
Deduction
Annual Cap
MFJ Cap
Phase-Out Start
Qualified Tips
$25,000
$25,000
Pending IRS guidance
Overtime Premium
$12,500
$25,000
Pending IRS guidance
Car Loan Interest
$10,000
$10,000
Pending IRS guidance
Senior Deduction
$6,000
$12,000
$75k single / $150k MFJ
Common Mistakes to Avoid
Treating Schedule 1-A deductions as Schedule 1 AGI adjustments — they are reported separately and reduce taxable income, not AGI
Entering total overtime wages instead of just the overtime premium portion (the extra 0.5×)
Assuming all tips qualify — occupation must be listed as tip-eligible in IRS guidance
Assuming car loan interest qualifies without verifying US assembly and post-2024 loan origination date
Forgetting MAGI phase-outs for the senior deduction — high earners may receive a reduced amount
Expecting state income tax to automatically follow federal Schedule 1-A rules — most states have not conformed
Claiming married-related deductions without filing jointly where the higher cap requires it
Counting tips not reported to the employer or IRS — only properly reported tips qualify
Frequently asked questions
❓What is IRS Schedule 1-A?
IRS Schedule 1-A is a new tax form used to calculate and claim four additional deductions created under OBBBA: qualified tip income, qualified overtime pay, qualified car loan interest, and the enhanced senior deduction. The combined deduction flows to Form 1040 under the applicable tax-year instructions. These are additional deductions available to eligible taxpayers whether they itemize or claim the standard deduction. Verify exact treatment with IRS instructions or a qualified tax professional.
❓Who needs to file Schedule 1-A?
Any taxpayer who received qualifying tip income, overtime premium pay, paid interest on a qualifying US-assembled car loan, or is age 65 or older as of December 31 of the tax year. The schedule is attached to Form 1040, 1040-SR, or 1040-NR.
❓Is Schedule 1-A the same as Schedule 1?
No. Schedule 1 captures additional income sources and above-the-line adjustments such as student loan interest, HSA deductions, and alimony. Schedule 1-A is a separate new form exclusively for the four OBBBA deductions. They are distinct forms that flow to different lines on Form 1040.
❓Does Schedule 1-A reduce AGI?
Schedule 1-A additional deductions are calculated separately from Schedule 1 adjustments and flow to Form 1040 under the applicable tax-year instructions. They reduce taxable income rather than AGI, and are available whether a taxpayer itemizes or claims the standard deduction. Verify exact treatment with IRS instructions or a qualified tax professional.
❓Can I use Schedule 1-A if I take the standard deduction?
Yes. Schedule 1-A deductions are completely separate from the choice between standard and itemized deductions. You can claim all four Schedule 1-A deductions and still take the full standard deduction. They stack on top of whichever deduction method you choose.
❓What is the maximum no-tax-on-tips deduction?
According to IRS guidance, qualifying tip income may be deductible up to $25,000 per return. The cap is the same for single and married filers. Only tips received in qualifying tip-eligible occupations (food service, hospitality, beauty, personal care, delivery) count. Tips must be reported on W-2 Box 7 or Schedule C. Income phaseouts may apply — verify with IRS instructions or a qualified tax professional.
❓What is the maximum no-tax-on-overtime deduction?
The overtime deduction cap is $12,500 for single filers and $25,000 for married filing jointly. Only the FLSA overtime premium (the extra 0.5× multiplier for hours over 40 per week) qualifies — not the entire overtime wage. Example: If your regular rate is $20/hr and you earn $30/hr overtime, only the extra $10/hr × overtime hours counts as the premium. Bonuses, shift differentials, and non-FLSA overtime generally do not qualify.
❓Does car loan interest qualify for Schedule 1-A?
Interest paid on a new passenger vehicle loan may qualify if: (1) the vehicle was final-assembled in the United States, (2) the loan generally originated after December 31, 2024, is secured by the vehicle, and meets IRS qualified passenger vehicle loan requirements, and (3) the vehicle is used for personal purposes. The deduction is capped at $10,000 per year and phases out above $100,000 MAGI ($200,000 for joint filers); married taxpayers must file jointly to claim it. Lenders receiving $600 or more of such interest generally report it on Form 1098-VLI, Vehicle Loan Interest Statement, when applicable. Verify vehicle, loan, VIN, personal-use, and reporting requirements with IRS instructions or a qualified tax professional.
❓How does the enhanced senior deduction phase-out work?
The enhanced senior deduction is $6,000 per eligible individual — $12,000 for a married couple where both spouses are 65 or older by the end of the tax year. Under IRC § 151(d)(5)(C) that $6,000 is reduced by 6% of MAGI above $75,000 (single) or $150,000 (joint). The reduction applies to each qualifying person's own $6,000, not to the couple's combined amount. Example: a single filer with $100,000 MAGI exceeds the threshold by $25,000, so the reduction is $1,500 and the deduction is $4,500. A couple at $200,000 MAGI is reduced by $3,000 each, leaving $3,000 per spouse — $6,000 combined, not $9,000. The deduction reaches zero at $175,000 (single) and $250,000 (joint). Married taxpayers must file a joint return to claim it.
❓Can I claim Schedule 1-A deductions if I file married filing separately?
No. Married taxpayers generally must file a joint federal return to claim the qualified tips, qualified overtime, passenger-vehicle loan interest, and enhanced senior deductions. If you file married filing separately, the deduction for each of these is $0 — the limits are not halved, and no partial or phased amount is allowed. The estimator above returns $0 for all four when married filing separately is selected. Verify your eligibility with the IRS Schedule 1-A instructions or a qualified tax professional.
❓Does TaxSaveIQ file my tax return?
No. TaxSaveIQ provides educational tax estimates and planning tools only. TaxSaveIQ does not file tax returns, provide tax advice, or represent users before the IRS or any tax authority. Always consult a qualified, licensed tax professional for advice and filing specific to your situation.
Estimate your Schedule 1-A deductions free
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Educational purposes only · Not tax advice · Free for all users · No login required
Educational Disclaimer: TaxSaveIQ provides educational estimates only and does not provide tax, legal, accounting, investment, or financial advice. Schedule 1-A eligibility depends on IRS rules, income thresholds, filing status, documentation requirements, and your complete tax return. This page summarizes Schedule 1-A as understood based on enacted legislation — deduction caps, phase-out thresholds, eligibility rules, and form numbering may be adjusted by subsequent IRS guidance, technical corrections, or regulatory updates. The calculator on this page is a simplified estimator and does not constitute tax preparation. TaxSaveIQ is not affiliated with the Internal Revenue Service or any government agency. Verify all figures with a qualified, licensed tax professional before filing. Full disclaimer.