No Tax on Overtime Calculator

How No Tax on Overtime works

Created by the One Big Beautiful Bill Act (OBBB) of 2025, this deduction:

• Excludes up to $25,000 of qualifying overtime pay from federal taxable income per year
• Effective for tax years 2025 through 2028
• Applies to FLSA-defined overtime (1.5x or 2x premium pay for hours over 40/week, or daily OT under state law)
• Phases out for high earners (MAGI above $250K single / $500K joint)
• Reduces FEDERAL INCOME TAX only, FICA (Social Security + Medicare) still applies
• State income tax follows state-by-state rules, most still tax overtime

Tax savings at common scenarios

Federal income tax savings only. FICA (7.65%) still owed on all OT income. State income tax may still apply.

What "qualifying overtime" actually means

The OBBB deduction sounds simple — exclude up to $25,000 of OT from your taxable income — but the definition of qualifying overtime is narrower than most workers assume. The IRS only counts pay that meets all three tests:

1. The premium is required by FLSA or state OT law. Federal time-and-a-half over 40 hours per week is the baseline. California's daily OT (over 8 hours/day) qualifies because it's mandated by state law and pays a 1.5x premium. Voluntary holiday pay, shift differentials, and on-call premiums do not qualify.
2. Only the premium portion counts. If you earn $20/hour regular and $30/hour for an OT hour, only the $10 premium above your regular rate is excluded — not the full $30. This is one of the biggest sources of taxpayer confusion. Your "qualifying overtime" is roughly one-third of your gross OT pay, not the full amount.
3. You must be non-exempt under FLSA. Salaried managers, professionals, and outside sales workers don't qualify, even if their employer voluntarily pays them OT. The deduction is targeted at hourly workers and other non-exempt employees.

Worked example. An RN earns $35/hour regular and works 50 hours one week. OT premium = 10 hours × ($35 × 0.5) = $175. That $175 is the "qualifying overtime" amount that counts toward the $25,000 cap, not the gross OT pay of $525 (10 hours × $52.50). At 50 weeks of this pattern, qualifying OT totals $8,750 — well under the cap but a meaningful federal tax deduction.

The calculator above uses the simpler approximation (the full 1.5x premium pay) so the figures might be slightly higher than what the IRS will accept. When you file, check the Schedule 1-A (Form 1040) instructions, which cover the qualified overtime deduction, for the precise calculation method.

Updating your W-4 to capture the deduction during the year

By default, your employer withholds federal tax on overtime as if it's ordinary income. You'll still get the deduction at tax-filing time — as a refund — but the IRS held your money interest-free for up to 16 months. Most workers prefer the cash flow that comes from adjusting withholding.

For 2025-2028, the W-4 form includes a new section for the No Tax on Overtime estimated deduction. Three options for managing it:

• Do nothing. Wait until tax time, claim the deduction on your return, get a refund. Simplest approach. Best for workers who don't reliably get OT every paycheck or whose OT amounts vary widely.
• Reduce withholding via additional allowances. Estimate your annual qualifying OT, multiply by your marginal rate, divide by paychecks per year, and add that as "additional reduction" on W-4 Step 4(b). Smooths out the deduction across the year.
• Submit Form W-4O. Workers with consistent overtime can file a specialized OT-only W-4 that asks the employer to exclude the premium from federal income tax withholding automatically. Most major payroll providers (ADP, Paychex, Workday) added support for this in early 2025.

Be conservative when adjusting withholding. If you overestimate qualifying OT and end up owing tax at year-end, you may face an underpayment penalty. The safe-harbor rule: as long as you paid in at least 90% of your current year's tax or 100% of last year's (110% if AGI > $150K), no penalty applies.

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