When you work at two or more different hourly rates in the same workweek, the FLSA requires your employer to calculate a weighted average regular rate — your total earnings divided by total hours worked — then pay overtime at 0.5× that blended rate for all overtime hours.
What Is Weighted Overtime and Who Needs It?
Standard overtime is simple: you earn one rate, work over 40 hours, and get 1.5× that rate for extra hours. But what happens when you work two jobs for the same employer at different hourly rates — say, $18/hr stocking shelves and $24/hr driving a forklift — within the same workweek?
In that case, the FLSA requires your employer to calculate a weighted average regular rate and use that blended rate as the basis for your overtime pay. Using only your lower rate to calculate overtime is one of the most common FLSA wage violations.
Who Uses Weighted Overtime Calculations?
- Nurses and healthcare workers — different pay for regular vs. charge nurse shifts
- Restaurant workers — server rate vs. kitchen or host rate in same week
- Construction workers — different trade rates on same jobsite
- Retail workers — base pay plus commission (commission = non-discretionary bonus)
- Production workers — piecework combined with hourly work
- Gig workers classified as employees working multiple roles
Employer alert: If you pay employees different rates for different tasks and calculate overtime on the lower rate only, you are likely violating the FLSA. The DOL actively audits this. Employees may be owed back wages going up to 2–3 years.
The Weighted Overtime Formula (FLSA Method)
Step 2: Weighted Regular Rate = Total Straight-Time Pay ÷ Total Hours Worked
Step 3: OT Half-Time Premium = Weighted Regular Rate × 0.5 × OT Hours
Step 4: Total Pay = Total Straight-Time Pay + OT Half-Time Premium
Note: Straight-time pay already covers the "1×" portion of overtime hours.
Why 0.5× (not 1.5×)? In the weighted method, you've already paid straight time for ALL hours worked (including OT hours) in Step 1. So you only need to add the additional half (0.5×) — not the full 1.5× — for overtime hours. The total is still 1.5× the blended rate.
Maria works for a hospital as a CNA and also as a dietary aide the same week.
CNA rate: $22/hr × 30 hours = $660
Dietary aide: $16/hr × 18 hours = $288
Total: 48 hours, $948 straight-time earnings
Weighted regular rate: $948 ÷ 48 = $19.75/hr
OT hours: 48 − 40 = 8 overtime hours
OT premium: $19.75 × 0.5 × 8 = $79.00
James earns $20/hr on day shift and $23/hr (shift differential) on night shifts.
Day shift: $20 × 32 hrs = $640
Night shift: $23 × 12 hrs = $276
Total: 44 hours, $916 straight-time
Weighted regular rate: $916 ÷ 44 = $20.82/hr
OT hours: 44 − 40 = 4 overtime hours
OT premium: $20.82 × 0.5 × 4 = $41.63
Alternative Method: Rate-in-Effect
The FLSA allows a second method — the rate-in-effect method — but only if the employer and employee agree to it in writing before the work is performed.
Under this method, overtime is calculated at 1.5× the rate that was in effect when the overtime hours were actually worked. This is simpler but generally results in different (sometimes higher) overtime pay.
| Method | How OT Rate Is Set | When to Use |
|---|---|---|
| Weighted Average (default) | 0.5× blended rate added to all earnings | Default FLSA rule, no agreement needed |
| Rate-in-Effect | 1.5× the rate when OT hours worked | Requires prior written agreement |
How Non-Discretionary Bonuses Affect Weighted OT
Non-discretionary bonuses (production bonuses, attendance bonuses, shift completion bonuses) must be included in the regular rate before calculating overtime. This is a common employer mistake.
Dave earns $19/hr, works 48 hours, and gets a $120 production bonus this week.
Straight-time pay: $19 × 48 = $912
Total earnings including bonus: $912 + $120 = $1,032
Weighted regular rate: $1,032 ÷ 48 = $21.50/hr
OT hours: 8 × OT premium: $21.50 × 0.5 × 8 = $86.00
🧮 Try the Weighted Overtime Calculator Above
Enter your different rates and hours — the calculator does the FLSA math automatically, including the blended rate and OT premium.
Calculate My Weighted OT →Frequently Asked Questions
What is weighted overtime?
Weighted overtime applies when an employee works at two or more different hourly rates in the same workweek. The FLSA requires a blended "weighted average" regular rate — total earnings divided by total hours — used as the base for overtime calculations.
How do you calculate weighted average overtime?
Add up all straight-time earnings across all rates. Divide by total hours worked to get the weighted regular rate. Multiply that rate by 0.5 × overtime hours to get the OT premium. Add the premium to total straight-time earnings for your total weekly pay.
Who uses the weighted overtime calculation?
Any employee working multiple roles or rates for the same employer in one workweek: nurses, restaurant workers, retail employees with commissions, construction workers on multiple trade rates, and workers with shift differentials.
Is weighted overtime required by the FLSA?
Yes. When an employee works at multiple pay rates in a workweek, employers must use the FLSA weighted average method (or rate-in-effect, if pre-agreed in writing) to calculate overtime. Using only the lower rate is a wage violation.
Do bonuses affect weighted overtime?
Yes. Non-discretionary bonuses (production, attendance, shift completion) must be included in the regular rate calculation before determining overtime. Only truly discretionary bonuses (surprise gifts with no pre-announced criteria) can be excluded.
Related: How to Calculate Overtime Pay · Salary Overtime Calculator · Nurse Overtime Calculator