S-Corp Overtime Deduction: New 2026 W-2 Reporting Rule
If your S-corp has any hourly or non-exempt employees, the S-corp overtime deduction created by the One Big Beautiful Bill Act is no longer optional paperwork you can put off. Starting with the 2026 tax year, you are required to separately report qualified overtime compensation on Form W-2, and the employee cannot claim the deduction on their own return unless you do it correctly. Here is what changed, what you have to report, and why most S-corp owners will not qualify for the deduction themselves.
What the S-Corp Overtime Deduction Actually Covers
The deduction under Internal Revenue Code Section 225 is narrower than “no tax on overtime” headlines suggest. It only covers the premium half of time-and-a-half overtime pay required under Section 7 of the Fair Labor Standards Act — not the full overtime paycheck. If an employee earns $30 an hour and is paid $45 for an overtime hour, only the extra $15 is qualified overtime compensation. The straight-time portion was already taxable and stays that way.
The deduction is capped at $12,500 per return, or $25,000 on a joint return, and it phases out by $100 for every $1,000 of modified adjusted gross income above $150,000 ($300,000 for joint filers). It runs for tax years 2025 through 2028 and disappears after that unless Congress extends it. The employee needs a valid Social Security number to claim it, and married employees must file jointly.
The Reporting Requirement Employers Cannot Skip in 2026
2025 was a transition year. The IRS gave employers a pass on separately reporting overtime pay, and employees could reconstruct the deduction from pay records if their W-2 did not break it out. That relief ends with the 2026 tax year. Employers must now report the full amount of qualified overtime compensation on Form W-2, Box 12, using Code TT (or Box 1d of Form 1099-NEC and Box 14 of Form 1099-MISC for the rare cases where a worker is an employee for FLSA purposes but a contractor for tax purposes).
This is a hard gate, not a suggestion. Per the IRS’s August 2026 fact sheet on the deduction, an employee can only deduct qualified overtime compensation that was actually included on a properly furnished W-2. If your payroll system does not populate Box 12 Code TT for 2026, your affected employees lose the deduction entirely, and they will come looking for a corrected W-2c. Get this wrong and you are also exposed to information-reporting penalties under Sections 6721 and 6722 for an incorrect or missing return.
Talk to your payroll provider now, not in January. Confirm they can identify FLSA-eligible employees, calculate the premium portion of overtime separately from straight-time and non-FLSA overtime premiums, and populate Code TT automatically. This is the same operational lift the site covered for the new tip deduction, and both provisions are landing on the same 2026 W-2.
Withholding Does Not Change Automatically
Qualified overtime compensation is still subject to federal income tax withholding, Social Security, Medicare, and FUTA — the deduction only shows up when the employee files their return. An employer cannot reduce withholding just because an employee is likely to qualify for the deduction. The only way withholding changes is if the employee submits a new Form W-4, and the 2026 Form W-4 was updated so the Step 4(b) deductions worksheet can account for an expected overtime deduction. If employees ask why their paycheck withholding looks the same despite the new law, that is the answer.
Why Most S-Corp Owners Will Not Qualify Themselves
Here is the detail that catches S-corp owners off guard: the deduction only applies to overtime that is required under the FLSA, and the FLSA has an exemption tailor-made for people like you. An employee who owns at least a bona fide 20% equity interest in the business and is actively engaged in managing it is treated as a bona fide executive — and bona fide executives are exempt from the FLSA’s overtime requirement entirely. If you are a majority or significant S-corp shareholder drawing a W-2 wage, you are almost certainly FLSA overtime-ineligible, which means any extra hours you put in during busy season do not generate qualified overtime compensation, no matter how they are labeled on your pay stub.
This connects directly to how you should already be setting your reasonable compensation. Your W-2 wage needs to reflect the value of the work you do, not an overtime calculation the FLSA does not require the business to make on your behalf. Rank-and-file employees who are genuinely non-exempt under the FLSA are a different story, and they are the ones your payroll system needs to track for Box 12 Code TT.
What to Do Before Year-End
Three things belong on your list before 2026 W-2s go out in January 2027. First, identify which of your employees are FLSA overtime-eligible versus exempt, since that determines who can even generate qualified overtime compensation. Second, confirm your payroll provider has been tracking the premium portion of qualified overtime for every 2026 pay period already run — and can calculate it retroactively if it has not — so Box 12 Code TT is accurate and tested before W-2 season, not during it. Third, review how you are paying yourself so you are not assuming a deduction you do not qualify for.
The mechanics here interact with worker classification, FLSA exemption tests, and your own reasonable compensation analysis, and a mistake in any one of those areas creates real penalty exposure or a lost deduction for an employee who is counting on it. If you want a second set of eyes on your payroll setup before 2026 W-2s are due, schedule a consultation with our team.