The Misconception
When managers think "overtime," they think: hourly rate × 1.5 × overtime hours. Clean, simple, done.
That math is wrong whenever an employee receives a nondiscretionary bonus — and the error compounds across your entire OT-eligible workforce.
What the FLSA Actually Requires
The Fair Labor Standards Act requires overtime to be paid at 1.5x the employee's regular rate of pay — not their base hourly wage. The regular rate is a calculated figure that includes all remuneration for employment paid in the workweek, with specific statutory exclusions.
Critically, nondiscretionary bonuses must be included in the regular rate calculation. A bonus is nondiscretionary if the employee has a reasonable expectation of receiving it — attendance bonuses, production bonuses, quality bonuses, shift differentials all typically qualify.
How to Calculate the Regular Rate
For a single workweek with a weekly bonus:
- Total straight-time earnings = (hourly rate × total hours) + bonus
- Regular rate = total straight-time earnings ÷ total hours worked
- OT premium owed = regular rate × 0.5 × OT hours
Example: The Hidden Cost
Employee earns $20/hr, works 48 hours, receives a $100 attendance bonus.
- Straight-time pay: (48 × $20) + $100 = $1,060
- Regular rate: $1,060 ÷ 48 = $22.08/hr
- OT premium owed: $22.08 × 0.5 × 8 = $88.33
If you had ignored the bonus: $20 × 0.5 × 8 = $80.00. That's an $8.33 underpayment — per employee, per week. Multiply that across a workforce and look back three years and you've got a wage claim.
Common Exclusions (What Doesn't Count)
Not everything gets included. Properly structured discretionary bonuses are excluded — those where the employer retains full discretion over whether to pay the bonus and the amount, announced at or near the time of payment. Annual holiday bonuses announced and paid at the end of the year typically qualify.
Also excluded: gifts, certain profit-sharing payments, overtime premium payments themselves, and reimbursements for expenses.
Why This Gets Payroll Teams in Trouble
The most common failures:
- Treating all bonuses as discretionary when they're actually performance-tied and expected
- Spreading weekly bonuses across the wrong workweek — bonuses must be allocated to the workweek(s) they were earned
- Missing the retroactive true-up when a monthly or quarterly bonus comes in
When a bonus spans multiple workweeks (e.g., a monthly production bonus), you need to allocate it back across each week and recalculate OT liability for each affected week. That's what the Retro Pay Calculator handles.
Run the Numbers
Use the FLSA Regular Rate Calculator to compute the true regular rate with any combination of hourly pay, salaried pay, and bonuses — and see exactly what overtime liability looks like.