Machinist Overtime Tax Deduction Calculator
Run your real overtime numbers below. The estimate applies the same Schedule 1-A math as your federal return — no tax software, no signup.
The short answer: Hank — at the scenario numbers pre-loaded below, the OBBBA deduction is $4,590, worth about $1,010 in federal income tax at a 22% marginal rate ($39 per biweekly paycheck). Exact figures update live as you change the inputs.
Regular rate (not OT rate)
Hours worked beyond 40/week
Modified Adjusted Gross Income
Overtime Premium Deduction
$4,590
✅ You qualify for the full deduction
⚠️ This calculator provides estimates for informational and educational purposes only. It is not tax advice. Results are based on the One Big Beautiful Bill Act (OBBBA) and IRS Schedule 1-A. Consult a qualified tax professional for your specific situation.
What Counts (and What Doesn't)
Piece-rate and bonus plans complicate machinist pay: performance bonuses paid flat are not OT premium, but the FLSA requires bonuses to be included when computing the regular rate for OT purposes. Your W-2's OT lines already reflect that recalculation — enter total annual OT hours plus your regular rate, and shift differential counts inside the rate.
The full rules, caps and phase-outs for every deduction are in one table on the OBBBA rules page.
Worked Example
Hank runs CNC cells at $27/hour, and production surges plus weekend coverage add up to about 340 OT hours a year.
- • Deductible amount: $4,590
- • Federal income tax savings: $1,010 (at the 22% marginal rate)
- • Per biweekly paycheck: $39
Every dollar of that comes off federal income tax while FICA still applies — the calculator above runs the same caps and phase-outs your return will.
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Frequently Asked Questions
Do production bonuses increase my deductible overtime premium?
Indirectly, yes. Nondiscretionary production bonuses must be folded into your regular rate when overtime is computed, which raises the premium on each OT hour. The W-2 OT premium you see already includes that recalculation.
Do I need to itemize deductions to claim the overtime deduction?
No. The overtime premium deduction is an above-the-line adjustment on Schedule 1-A — you can take the standard deduction and still claim it in full.