A time card that reads 44 hours is not simply four hours better than one that reads 40. Those last four hours are paid at a different rate, and getting that rate wrong is the single most expensive error in hourly payroll. Overtime pay in the United States rests on a small set of rules that have barely changed in decades, yet they are still misapplied every week, usually because someone counted the wrong period or misjudged who was covered.
This article sets out the forty-hour threshold, how the time-and-a-half figure is actually calculated, what counts as hours worked, which states add a daily trigger, and who falls outside the rules altogether. Totals can be checked with the free weekly time card calculator, which separates regular and premium hours.
What Triggers Overtime Pay?
Under the Fair Labor Standards Act, a non-exempt employee earns overtime pay for every hour worked beyond forty in a single workweek. The threshold is weekly, not daily and not per pay period, and hours are never averaged across two weeks.
The workweek itself is a fixed and regularly recurring period of 168 consecutive hours: seven twenty-four-hour days. An employer chooses when it begins, and it does not have to match the calendar week, but once fixed it cannot be moved about to suppress premium hours. An employee who works 50 hours one week and 30 the next has ten overtime hours, even though the fortnight totals eighty. This trips up employers on a biweekly pay cycle more than any other rule, because the payslip covers two workweeks and each must be assessed on its own.
How Is Overtime Pay Calculated?
Overtime pay is one and a half times the employee's regular rate for each hour past forty. The regular rate is not always the base hourly wage: it is total straight-time earnings for the week divided by total hours worked.
That distinction matters whenever pay includes more than an hourly figure. Non-discretionary bonuses, shift differentials, commissions and production incentives all fold into the regular rate before the half-time premium is worked out. A genuinely discretionary gift, decided after the fact and not promised in advance, does not. Consider someone paid $20 an hour who works 45 hours and earns a $50 attendance bonus:
- Straight-time earnings: 45 hours at $20 is $900, plus the $50 bonus, giving $950.
- Regular rate: $950 divided by 45 hours is $21.11 per hour.
- Half-time premium: half of $21.11 is $10.56, owed on each of the five overtime hours.
- Premium due: five hours at $10.56 is $52.80.
- Gross pay: $950 plus $52.80, or $1,002.80 before deductions.
Paying $30 an hour for the five extra hours would have understated the amount owed, because the bonus was ignored. Convert every daily figure to decimal hours before this arithmetic starts; the method is set out in converting minutes to decimal hours.
What Counts as Hours Worked?
Hours worked covers all time an employee is required to be on duty or at a prescribed workplace, plus any work the employer knows about and permits. Setup, cleanup, required training and answering messages after hours all count toward the forty-hour threshold.
Short rest breaks of about five to twenty minutes count as work time and are paid; a bona fide meal period of thirty minutes or more, with the employee fully relieved of duty, does not. The practical treatment is covered in lunch and break deductions. Paid leave is different again: holiday, sick days and vacation are not hours worked, so an employee who takes eight hours of holiday and works another 36 has 44 paid hours but no overtime pay due under federal rules.
Daily Overtime and State Variations
Federal law sets a floor, not a ceiling, and several states pay more. California is the best-known example: overtime is owed after eight hours in a day as well as after forty in a week, double time applies after twelve hours in a day, and the seventh consecutive day in a workweek carries its own premium. Alaska, Nevada and Colorado also operate daily thresholds, with their own qualifications.
Where state and federal rules differ, the employee gets whichever is more generous, and daily and weekly amounts are not stacked on the same hour. Rules vary by jurisdiction and by employer contract, so treat this as a description of common practice rather than legal advice and check what applies where the work is done.
A second variation concerns how the workweek meets the pay cycle. An employer on a semimonthly schedule will often split a workweek across two payslips, which is permitted so long as the calculation still follows the workweek rather than the pay period. The premium can be paid on the following slip once the weekly total is known, but it must never be recalculated to fit the shorter period. The interaction between the two cycles is set out in biweekly versus semimonthly pay.
Who Is Exempt From Overtime Pay?
Exempt employees receive no overtime pay. To be exempt an employee generally must be paid on a salary basis, be paid at least a set minimum salary, and have job duties that fit one of the recognised exemptions, most commonly executive, administrative, professional, outside sales or certain computer roles.
All three parts have to be satisfied. A salary alone does not create an exemption, and neither does a job title: the duties test looks at what the person actually does day to day, not at what the offer letter calls them. Misclassifying a non-exempt worker as exempt is a costly mistake because the liability accumulates quietly across every unpaid premium hour, and the US Department of Labor can look back over a period of years. The salary thresholds are revised periodically, so confirm the current figure rather than relying on one you remember.
Unauthorised Overtime and Off-the-Clock Work
Work that was not authorised still has to be paid. An employer may discipline an employee for breaching a policy against unapproved extra hours, but it cannot refuse to pay for time it knew or should have known was worked. "We never approved it" is not a defence to a wage claim.
The practical answer is visibility rather than prohibition. Require every hour to be punched, review the log daily rather than at the end of the period, and deal with the schedule problem that is generating the extra hours. A simple punch in and punch out clock makes the pattern obvious early, while the hours between two times calculator settles individual disputed shifts. Records of daily and weekly hours must be retained for years, and in a dispute the employer's records are what carry the argument.
Conclusion
Overtime pay follows a short chain of rules: fix the workweek, count all hours worked, apply the premium after forty hours, and calculate one and a half times the regular rate rather than the base wage. Check whether a daily threshold applies in your state, confirm exempt status against duties rather than titles, and pay unauthorised hours even while addressing why they happened. Work out the split for your own week with the time card calculator, or browse the other free tools on timeclock.now.