What the 2025 act changes for an individual return
The One Big Beautiful Bill Act, Pub. L. 119-21, is a federal law with many provisions. TaxBreak Hub focuses on four changes that can be estimated from information a household is likely to have: reported qualified tips, qualifying overtime premium, interest on an eligible vehicle loan, and state and local taxes considered with other itemized deductions. This guide does not claim that those four provisions are the entire act.
Three of the four changes are deductions above the line. A qualifying taxpayer can use the tips, overtime, or car-loan-interest deduction while still taking the standard deduction. SALT works differently. It stays in the itemized-deduction bucket, so the relevant question is whether allowed SALT plus mortgage interest and charitable gifts exceeds the standard deduction for the year and filing status.
A deduction is also not a dollar-for-dollar payment. It reduces income used in the federal income-tax calculation. The resulting savings depend on taxable income and the brackets crossed by the deduction. That is why the calculators use the shared bracket tables rather than describing a $10,000 deduction as a $10,000 refund.
The four provisions at a glance
The master table separates the amount that may qualify from the income rule that can reduce it. Caps are maximums, not automatic allowances, and every row has an eligibility test outside the arithmetic. The filing-status labels reflect the options supported by the current calculators.
| Provision | Core rule | Income rule | Tax treatment | Temporary period |
|---|---|---|---|---|
| Qualified tips | Up to $25,000 of reported qualified tips | $100 reduction per full $1,000 over $150,000 Single/HoH or $300,000 MFJ | Above the line | 2025–2028 |
| Qualified overtime | Premium portion only; up to $12,500 or $25,000 MFJ | $100 reduction per full $1,000 over $150,000 Single/HoH or $300,000 MFJ | Above the line | 2025–2028 |
| Qualified car-loan interest | Up to $10,000 per year for an eligible purchase loan | $200 reduction per $1,000 or fraction over $100,000 Single/HoH or $200,000 MFJ | Above the line | 2025–2028 |
| SALT | $40,000 cap in 2025; $40,400 in 2026; indexed through 2029 | 30% reduction above the indexed threshold, with a $10,000 floor | Itemized | $10,000 cap returns in 2030 |
Tips and overtime: compensation is not the same as the deduction
The tips provision in IRC §224 begins with reported tips from an occupation that customarily and regularly receives tips. The current calculator asks for the reported qualified amount, applies the $25,000 cap, and then applies the MAGI phase-out. The provision does not remove payroll-tax obligations, excuse unreported cash, or make every customer payment a qualified tip.
The overtime provision in IRC §225 is narrower than total overtime pay. Only the premium over the regular-rate portion qualifies. If a worker earns a $20 base rate and receives $30 for 10 overtime hours, total overtime pay is $300, but the premium is $100: $300 minus 10 times the $20 regular rate. The calculator uses that premium before applying its cap and phase-out.
Tipped and overtime workers may qualify for both provisions when the underlying amounts satisfy each rule. They should still keep the categories separate. A payroll record that distinguishes base wages, reported tips, overtime hours, and the overtime rate provides a clearer starting point than one combined take-home figure.
Car-loan interest and SALT answer different questions
The vehicle rule is not a general deduction for owning a car. It applies to qualifying interest on a new vehicle whose original use begins with the taxpayer, purchased after December 31, 2024, for personal use, with final assembly in the United States and qualifying purchase indebtedness secured by a first lien. The VIN and assembly location matter, and leases do not qualify under the rule modeled by the calculator.
For a qualifying loan, the annual deduction is capped at $10,000 and phased out using $200 steps above $100,000 of MAGI for Single/HoH or $200,000 for MFJ. The auto-loan tool amortizes the loan and displays interest for years one through five because annual interest changes as principal is repaid. It does not treat the vehicle price or principal payments as interest.
SALT instead starts with state and local income tax plus property tax paid, subject to the applicable federal cap. For 2026, that cap is $40,400 and the phase-down threshold is $505,000. Mortgage interest and charitable gifts are then added, and the complete itemized total is compared with the 2026 standard deduction of $16,100 Single/HoH or $32,200 MFJ.
Who is most likely to see a difference
A tipped worker with reported qualified tips can benefit even without itemizing, subject to occupation, reporting, cap, and income rules. An overtime worker can benefit when the pay includes a qualifying premium rather than merely extra straight-time hours. A household may qualify for both, but the deductions remain separate lines and each has its own supporting records.
A buyer of an eligible US-assembled new vehicle may benefit when the purchase loan produces qualified interest and MAGI leaves some deduction after the phase-out. A taxpayer with substantial state and local taxes may benefit from the higher SALT cap only if the complete itemized total beats the standard deduction. Living in a particular state or buying a particular brand does not guarantee either result.
- Use the tips calculator for occupation, reporting, cap, and MAGI questions.
- Use the overtime calculator to isolate premium pay from total overtime compensation.
- Use the auto-loan calculator only after completing the vehicle and loan checklist.
- Use the SALT calculator to compare the full itemized total with the standard deduction.
- Use the Savings Hub when more than one provision may apply.
The expiration dates are part of the answer
The tips, overtime, and qualified car-loan-interest deductions are temporary for tax years 2025 through 2028 under the provisions modeled here. A result for one of those years should not be projected beyond 2028 as though the same deduction automatically continues. Eligibility and annual records must also be reviewed separately each year.
The SALT schedule lasts one year longer. The cap is $40,000 in 2025, $40,400 in 2026, and increases by 1% of the prior-year amount through 2029. The associated threshold follows the same indexing pattern from $500,000 in 2025 and $505,000 in 2026. The temporary schedule ends when the cap returns to $10,000 in 2030.
Planning should therefore match the selected tax year. Keep source records, recheck the current form instructions, and treat every calculator result as an educational estimate. A licensed professional can address filing statuses, business use, state conformity, credits, and other return items that the four engines do not model.