What is the One Big Beautiful Bill Act (OBBBA)?
The One Big Beautiful Bill Act (P.L. 119-21), enacted in 2025, created a wave of new federal tax breaks and programs that take effect for 2025–2026 — several of them temporary through 2028. Because the rules are new and spread across hundreds of pages of statute and IRS guidance, FedCalc turns each one into a simple, sourced calculator so you can see exactly how it affects you.
Which OBBBA calculators are here
- No Tax on Tips — the up-to-$25,000 tip deduction (IRC §224).
- No Tax on Overtime — the overtime-premium deduction (IRC §225).
- Senior $6,000 deduction — the bonus deduction for those 65+ (IRC §151(d)(5)).
- Car loan interest deduction — up to $10,000 on a U.S.-assembled new vehicle (IRC §163(h)(4)).
- Child Tax Credit — the new $2,200-per-child amount (IRC §24).
- SALT deduction cap — the new $40,000 state & local tax cap (IRC §164(b)(6)).
- Total 2026 Tax Change — all provisions combined into one number.
- Trump Account — the $1,000-seed children's investment account.
- RAP student loan plan — the income-driven plan replacing SAVE.
We add new OBBBA calculators as IRS guidance is finalized — each launched only when we can verify it against primary sources, with a confidence label where rules are still pending.
Why trust these calculators
- Sourced. Every figure is checked against the statute and IRS guidance, with citations on each page and a confidence label (Confirmed / Provisional) where rules are still being finalized.
- Private. The math runs entirely in your browser — your numbers never leave your device.
- Current. A static site lets us update the moment new guidance drops, with a visible "last updated" date.
- Honest. We tell you what each break does not do (e.g., tips still owe payroll tax), so you're not surprised at filing time.
Disclaimer: Educational estimates based on the 2026 OBBBA statute and IRS guidance; some details are still being finalized. Not tax, legal, or financial advice. FedCalc is independent and not affiliated with the U.S. government or IRS.