W-2 Box 12 · Code TT
Estimate qualified overtime — the FLSA premium, not your total OT pay.
For 2026, employers report qualified overtime compensation in Box 12 with code TT. The deduction is separate, capped, and phased out by MAGI. This page does the arithmetic in your browser.
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- IRS FS-2026-13
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Enter an hourly rate (or weekly salary) and hours for one workweek. Results update as you type. Nothing is sent anywhere.
Estimated Box 12, Code TT
$0.00
Estimated deductible
$0
Show the math · one workweek
When you file
On the 2026 Form 1040, qualified overtime is computed on Schedule 1-A, Part III. You enter the Box 12 Code TT amount; the schedule applies the cap and MAGI phaseout. Tax software — for example FreeTaxUSA and TaxAct — will include this form. This site has no affiliate relationship with those products.