Under federal law, overtime is calculated on your regular rate of pay, not your base hourly wage, and the regular rate must include most bonuses, shift differentials, and commissions you earned that week. So if you got a $90 production bonus in a week you also worked overtime, your overtime is owed on a higher rate than your sticker wage, and skipping that step quietly underpays you. This guide shows exactly how the regular rate is built, which pay counts and which does not, and how to recompute your overtime with a worked example you can copy.
This is the single most misunderstood part of overtime math. Most people multiply their posted hourly wage by 1.5 and stop. The Fair Labor Standards Act (FLSA) requires more: it defines a weekly average rate that folds in extra pay, and your time-and-a-half is built on that number. To run any scenario instantly, use our overtime pay calculator, then read on to understand the rate it should be based on.
What is the regular rate of pay?
The regular rate of pay is your total straight-time earnings for a workweek divided by the total hours you worked that week. It is an hourly average, not just your posted wage. The formula is:
Regular rate = (all straight-time pay for the week) / (total hours worked that week)
For a worker paid one flat hourly wage with no extra pay, the regular rate simply equals that wage. The complication appears the moment your paycheck includes anything beyond base hours: a nondiscretionary bonus, a per-piece rate, a shift differential, or a non-cash incentive. Those dollars get spread across your hours and lift the rate that overtime is calculated on.
Why overtime is owed on the regular rate, not base wage
The FLSA requires that non-exempt employees be paid at least 1.5 times their regular rate for hours over 40 in a workweek. Because the regular rate already includes extra pay, the overtime premium is owed on the higher figure. According to the U.S. Department of Labor overtime pay rules, the regular rate is a fact derived from what you were actually paid, not a number an employer can choose to ignore.
The cleanest way to compute overtime when a bonus is involved is the half-time premium method:
- Pay all hours (including overtime hours) at straight time, and add the bonus. This is your total straight-time compensation.
- Divide that total by hours worked to get the regular rate.
- Owe an extra half of the regular rate for each overtime hour, because the straight-time portion of those hours is already paid in step 1.
This produces the same answer as the familiar "1.5x for OT hours" method when there is no bonus, but it is the only method that handles bonuses correctly.
Worked example: a bonus raises the overtime owed
Maria earns $18.00 per hour. In one workweek she works 45 hours and earns a $90 nondiscretionary attendance bonus. Here is the correct calculation versus the common shortcut.
| Step | Correct (regular rate) | Shortcut (base wage only) |
|---|---|---|
| Straight-time pay (45 hrs x $18) | $810.00 | $720.00 (40 hrs only) |
| Bonus added | $90.00 | $90.00 |
| Total straight-time comp | $900.00 | n/a |
| Regular rate ($900 / 45) | $20.00/hr | $18.00/hr (assumed) |
| Overtime premium (5 hrs) | 0.5 x $20.00 x 5 = $50.00 | 0.5 x $18.00 x 5 = $45.00 |
| Total gross pay | $950.00 | $945.00 |
The bonus pushed Maria's regular rate from $18.00 to $20.00 per hour, so her overtime premium rose by $5.00 that week. On a $90 bonus that may look small, but for larger bonuses, more overtime hours, and 52 weeks a year, the gap compounds into real money.
A bigger example to show the gap grows
Now take a worker at $15.00 per hour who works 50 hours and earns a $75 nondiscretionary bonus. Total straight-time comp is (50 x $15) + $75 = $825, so the regular rate is $825 / 50 = $16.50. The overtime premium is 0.5 x $16.50 x 10 = $82.50, making total gross $907.50. The base-wage shortcut would owe only $900.00, a $7.50 underpayment in a single week. The bigger the bonus and the more overtime, the wider the gap.
Which pay counts in the regular rate, and which does not
Not every dollar belongs in the regular rate. The rule turns on whether the pay is promised in advance (which usually counts) or truly discretionary (which usually does not).
| Usually INCLUDED in the regular rate | Usually EXCLUDED from the regular rate |
|---|---|
| Nondiscretionary bonuses (production, attendance, safety, retention) | Discretionary bonuses decided after the fact, with no promise |
| Shift differentials and hazard pay | Gifts and holiday bonuses not tied to hours or output |
| Commissions earned during the period | Reimbursed business expenses |
| Piece-rate earnings | Paid time off for hours not worked (vacation, holiday, sick) |
The label an employer puts on a payment does not control the outcome; the facts do. A "discretionary" bonus that is actually promised every quarter to hit a target is nondiscretionary in substance and belongs in the regular rate. When in doubt, treat earned, promised, performance-tied pay as included.
How to recompute your own overtime
You can verify any single-rate week with a bonus using the half-time premium method below. If you also juggle two different hourly rates in one week, that is a separate blended-rate calculation, and our overtime pay calculator handles the multiplier math for you.
Where this fits with your other pay numbers
The regular rate only fixes your gross overtime pay. To see what actually lands in your account, run the result through the take-home pay calculator, since overtime is ordinary income and is reduced by the same federal, state, and FICA withholding as the rest of your check. If you want to know what a recurring overtime week is worth across a year, the hourly to salary calculator turns a weekly figure into an annual one, and the salary to hourly calculator does the reverse when you are comparing a salaried offer that drops overtime eligibility. For the broader picture of how a raise interacts with overtime exemption, see the pay raise calculator.
The bottom line
If you earned a nondiscretionary bonus in a week you worked overtime, your overtime should be paid on a regular rate that includes that bonus, not on your base wage alone. The math is straightforward once you see it: total straight-time pay plus bonus, divided by hours, gives the regular rate, and overtime adds half that rate per overtime hour. Check a recent overtime week against this method, and if the numbers do not line up, you have a concrete figure to raise with payroll.
Try it yourself
Run your own numbers in the free Overtime Pay Calculator — instant, private, no sign-up.
Open the Overtime Pay Calculator →Try it yourself
Run your own numbers in the free Overtime Pay Calculator — instant, private, no sign-up.
Open the Overtime Pay Calculator →Frequently asked questions
- Does a bonus increase my overtime pay?
- Yes, if it is a nondiscretionary bonus. It is added to your weekly pay, which raises your regular rate of pay, and overtime is owed on that higher rate. For example, $18/hr for 45 hours plus a $90 bonus gives a regular rate of $20/hr, not $18/hr.
- What is the regular rate of pay?
- The regular rate of pay is your total straight-time earnings for a workweek divided by the total hours you worked that week. It is an hourly average that includes bonuses, shift differentials, and commissions, not just your posted base wage.
- How do I calculate overtime when I earned a bonus?
- Add all straight-time pay plus the bonus, divide by hours worked to get the regular rate, then add half of that rate for each overtime hour. For $15/hr, 50 hours, and a $75 bonus: ($825 / 50) = $16.50 regular rate, plus 0.5 x $16.50 x 10 = $82.50 premium, for $907.50 total.
- Which bonuses count toward overtime?
- Nondiscretionary bonuses count, meaning bonuses promised in advance and tied to hours, output, attendance, safety, or retention. Truly discretionary bonuses decided after the fact, gifts, and holiday bonuses not tied to work generally do not count.
- Why is my overtime more than 1.5 times my hourly wage?
- Because overtime is based on the regular rate, not your posted wage. When you earn extra pay like a bonus or shift differential in an overtime week, that pay raises the regular rate, so your effective overtime rate climbs above 1.5 times your base wage.
- Can my employer pay overtime on base wage only?
- No, not when you earned nondiscretionary pay that week. Federal rules require overtime on the regular rate, which folds in those earnings. Paying overtime on base wage alone underpays you, even if only by a few dollars per week.
- Does paid time off count in the regular rate?
- No. Vacation, holiday, and sick pay are for hours not worked, so they are generally excluded from the regular rate and do not raise your overtime. Only pay tied to hours actually worked, like bonuses for output, lifts the rate.
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