Overtime Hours: How Many Hours Before Overtime Starts (2026)

Forty Is the Federal Line

Overtime hours are the hours worked past 40 in a single workweek. Not past 8 in a day, not past 80 in a pay period — past 40 in a fixed seven-day week your employer sets in advance.

Work 44 hours and four of them are overtime hours. Work 38 one week and 42 the next and only the second week's two hours are overtime, no matter how the pay period is arranged.

Which Hours Count Toward It

Counted: time on task, rest breaks under 20 minutes, required training and meetings, waiting time you cannot use freely, travel between work sites during the day, and off-the-clock work management knew about.

Not counted: meal periods of 30 minutes or more when fully relieved of duty, home-to-work commuting, and paid time off you did not work.

Paid holidays and vacation are the surprise. Eight hours of holiday pay plus 36 worked hours totals 44 on your stub but only 36 worked hours — so federally there are no overtime hours at all. The holiday overtime calculator shows how a contract can change that.

Daily Rules Change the Count

A few states also count overtime hours past 8 or 12 hours in a day. Four ten-hour shifts is exactly 40 hours: zero overtime hours under the weekly rule, eight under an 8-hour daily rule.

Where both exist, you earn the greater of the two — the same hour is never counted twice. Check your own state on the overtime laws by state page, and test your schedule in the overtime hours estimator.

Is There a Cap on Overtime Hours?

For adults, federal law sets no maximum hours per week and no limit on required overtime — it only requires that the hours be paid at the premium rate. Refusing mandatory overtime can be grounds for discipline in most states.

Real limits come from other places: child labour rules, state day-of-rest laws, trucking hours-of-service rules, and nurse mandatory-overtime statutes in a number of states.

Not Everyone Earns Them

Executive, administrative, professional, outside sales and certain computer roles can be exempt when both the salary and duties tests are met. Being paid a salary alone does not make you exempt — and misclassification is one of the most common wage violations found in enforcement.