2025 vs. 2026 overtime tax reporting: which records should you use?
Separate the 2025 transition methods from 2026 W-2 code TT reporting, with a payroll example and a year-by-year records checklist.
The year printed on your tax document is the first thing to check. A 2025 return and a 2026 return can involve the same job, the same hourly rate, and different documentation rules. A useful payroll estimate does not automatically become an amount you can put on either return.
This guide explains how to organize the records before using a calculator. The examples are OvertimeWise illustrations for an eligible hourly worker under the ordinary federal weekly overtime rule; they are not IRS examples or instructions for every employment arrangement.
Begin with the tax year, not the date you open the envelope
Create separate folders for 2025 and 2026. Put each W-2 with its matching payroll statements, and label any spreadsheet with the year its numbers cover. If you receive a correction later, keep it next to the original instead of adding the two amounts together.
A common planning error is to compare a full prior-year payroll total with a current-year figure that stops in September. Both can be accurate and still be unsuitable for a direct comparison. Write the first and last payment dates above your calculation, then distinguish actual payments from projections for the rest of the year.
For 2025, identify what the overtime line actually contains
Notice 2025-69 permits specified reasonable methods for eligible 2025 workers when qualified overtime was not separately reported. For standard time-and-a-half pay, an annual entry combining straight-time wages and the FLSA premium can be divided by three. A separately identified qualifying premium is already the relevant component. The method must fit the records and pay arrangement.
Consider an annual statement showing $9,900 as overtime wages. Before dividing anything, ask whether that line contains the full 1.5-times payment or only the additional premium. The identical label can describe different payroll layouts. The example below assumes every dollar on that line is full time-and-a-half compensation for eligible federal overtime, with no other pay components.
Original example: a full time-and-a-half earnings line
- Regular rate: $22 per hour; eligible overtime: 300 hours.
- Full overtime earnings: $22 × 1.5 × 300 = $9,900.
- Premium component: $22 × 0.5 × 300 = $3,300.
- Check: $9,900 ÷ 3 = $3,300; it is not a $9,900 deduction.
For 2026, reconcile against code TT
The 2026 W-2 instructions introduce box 12 code TT for qualified overtime compensation. Payroll reports the qualified amount before the employee applies the deduction cap and income limitation. Do not ask payroll to reduce code TT to your expected deduction merely because your household income is high.
Build a reconciliation with three columns: your workweek estimate, the employer's reported qualified amount, and the difference to investigate. A mismatch is a question for payroll, not permission to replace a tax document with the calculator result. Save any explanation about rate changes, bonus adjustments, payment timing, or excluded hours alongside the comparison.
Treat year-end pay as a separate reconciliation item
A shift worked near December 31 may be paid on a later payday. IRS guidance ties when overtime is paid to the principles used for wage withholding. Do not move a payment into the earlier year solely because that is when the hours were worked.
For your own worksheet, retain both the workweek ending date and the pay date. That makes a December-to-January difference visible without changing either number. If the employer revises a prior payment or pays an adjustment, request an explanation of the year in which it is being reported rather than guessing from a bank deposit description.
Sources: IRS FS-2026-13: overtime deduction FAQs, August 2026
A practical handoff to your tax preparer
Prepare a short cover note that states the tax year, employers included, whether the records are complete, and the meaning of each overtime earnings code. A clear note is more useful than dozens of unexplained screenshots. Keep sensitive identifiers out of general website feedback or public forums.
Then use the calculator to understand the size of a potential deduction. The reporting step and the deduction calculation are separate: an employer statement establishes a starting amount, while the return applies personal eligibility, filing status, and income limits. Use the final forms and instructions for the return year; a 2025 form is not the form for filing a 2026 return.
- Keep actual and forecast overtime in separate totals.
- Do not divide a premium-only line by three again.
- Do not carry a 2025 reconstruction method into 2026 automatically.
- Retain the original W-2, any W-2c, and the payroll explanation together.
Sources: IRS Notice 2025-69: 2025 transition methods · IRS 2026 instructions for Forms W-2 and W-3
Official sources
Sources checked for this guide on 2026-09-29. A review date is not a guarantee that a rule will remain unchanged; check the applicable tax-year instructions before acting.
Put the explanation to work
- Estimate your overtime deduction and federal tax savings
- Check the overtime deduction eligibility rules
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