Overtime Pay Calculator — FLSA Time-and-a-Half, Done Right

How to use

1. Enter your hourly rate and the week's hours — or use daily hours for California mode.
2. FLSA mode: hours over 40 pay 1.5×. California mode: over 8/day = 1.5×, over 12/day = 2×, plus 7th-day rules.
3. Add any non-discretionary bonus/commission for the week — the regular-rate add-back raises your OT premium.
4. Compare with your payslip; print the summary if the numbers disagree.

General information only — not medical, financial or legal advice. Figures cross-checked against public official sources (IRS / HMRC / NHS / WHO guidance); content last reviewed September 2026. For decisions that matter, confirm with a licensed professional in your country.

About this tool

Federal law (FLSA) requires 1.5× your regular rate for hours over 40/week — and the 'regular rate' is not just your hourly wage: non-discretionary bonuses and commissions must be added back in, raising the OT premium (most free calculators skip this; it is the single most common payslip error). Several states go further — California is the famous one: daily overtime over 8 hours, double time over 12, and 7th-consecutive-day premiums. This calculator models both systems: the FLSA weekly rule for every state, and the California daily ruleset, with a bonus add-back field on either. A printable summary shows the full breakdown you can line up against your payslip. Exempt vs non-exempt classification matters — salaried exempt roles (the duties + salary tests) get no OT at all; misclassification is the most common payroll violation. Estimates for checking, not legal advice. Calculating overtime pay correctly comes down to which rulebook governs the hours. US federal law (FLSA) is weekly and simple: past 40 hours in a workweek, every hour pays at least 1.5 × the regular rate — and the regular rate is not just the hourly wage, it is the wage plus non-discretionary bonuses and commissions divided back over the hours, which is why a $100 weekly bonus raises the OT premium itself. California layers daily rules on top: over 8 hours in a day = 1.5×, over 12 = 2×, and the first hours on the seventh consecutive workday earn 1.5×, then 2×. The UK takes the opposite approach: there is no statutory overtime rate — unless your contract sets one (often 1.25×–1.5× or TOIL), the legal floor is simply that average pay never falls below National Minimum Wage, so check your contract's overtime clause, not a US calculator, for UK hours.

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