Plumber 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: Frank — at the scenario numbers pre-loaded below, the OBBBA deduction is $5,250, worth about $1,155 in federal income tax at a 22% marginal rate ($44 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
$5,250
✅ 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)
Emergency 2 a.m. callouts are miserable but tax-efficient: the premium half of every after-hours rate is deductible. Apprentices in year three or four of a union program earn OT on their apprentice scale — the deduction works exactly the same on a smaller number. Shop plumbers on straight salary with no OT premium have nothing to deduct here.
The full rules, caps and phase-outs for every deduction are in one table on the OBBBA rules page.
Worked Example
Frank does residential service plumbing at $30/hour with an on-call rotation that generates about 350 overtime hours a year of emergency callouts.
- • Deductible amount: $5,250
- • Federal income tax savings: $1,155 (at the 22% marginal rate)
- • Per biweekly paycheck: $44
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
I'm a union apprentice — does my overtime count?
Yes, if it is paid as overtime premium on your W-2 at your apprentice rate. The deduction has no journeyman requirement. Enter your apprentice hourly rate and OT hours; the phase-out only depends on your MAGI.
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.