Shift Differential Calculator
with overtime done right

How to calculate shift differential pay

Multiply the hours worked in the differential window by the differential rate, then add that to base pay for all hours. A 10% night differential on a $20.00 base adds $2.00 an hour, so a night hour pays $22.00. A flat differential works the same way: a $1.50 weekend differential makes a $20.00 hour pay $21.50.

1. 1
   Price the differential

   Percent of base, or a flat amount per hour. Most agencies set it per client and position, because each client's night or weekend premium is different.

2. 2
   Add up straight-time pay

   Base hours at the base rate plus differential hours at the base rate plus the differential.

3. 3
   Find the regular rate

   Divide straight-time pay by total hours worked. That blended figure, not the base rate, is the regular rate for overtime.

4. 4
   Add the overtime premium

   For every hour over 40 in the workweek, add half the regular rate. The straight-time part of those hours is already in step 2.

Does shift differential apply to overtime?

Yes. Federal rules require night shift differentials to be included in the regular rate, whether they are a percentage of base or a flat amount per hour. When a Crew Member works hours at more than one rate in the same week, the regular rate is the weighted average of those rates. Figuring overtime on the base rate alone underpays every week that mixes differential hours and overtime. Federal rules allow a different method only in narrow cases, such as an agreement made before the work is performed.

Four dollars looks small. Across a pool of night-shift Crew Members working overtime every week, it adds up to back pay owed, and a wage claim is a costly way to find it.

What should a staffing agency bill for differential and overtime hours?

Most agencies apply the same markup to differential hours and bill overtime hours at 1.5 times the bill rate, but the staffing agreement decides. Check three things before the first night job goes out:

• Is the differential billable? If the client sets a night premium, the bill rate for those hours should carry it, or the agency pays the premium out of its own spread.
• Who approves overtime? Unapproved overtime the client refuses to pay comes straight out of margin.
• Does overtime cover the blended rate? If the bill multiplier is applied to the base bill rate only, the agency absorbs the same gap shown in the table above.

How NextCrew handles it

In NextCrew, pay and bill rates are set by client, position and job, including differentials and overtime. Crew Members clock in from the app, a kiosk or a supervisor, the client approves hours in the portal, and approved timesheets flow to invoicing and the payroll export without re-entry. Nobody rebuilds this math in a spreadsheet on payroll day. See staffing payroll and timesheet management.