How Shift Differential Pay Works

Learn how flat and percentage shift differentials affect gross pay and overtime estimates.

What shift differential pay is

A shift differential is extra pay for certain hours, often nights, weekends, holidays, or other hard-to-staff shifts.

The differential may be a flat amount per hour or a percentage of the base hourly rate. Employer policy or contracts usually define when it applies.

Overtime and regular rate caution

Overtime calculations can depend on what counts in the regular rate of pay. Federal overtime rules use the regular rate for covered nonexempt employees, and some extra compensation can affect that rate.

Use calculator results for planning, then check your employer policy or payroll rules for the official calculation.

Examples

Flat differential example

Base rate: $20 per hour
Differential: $2 per hour
Differential hours: 10
Differential pay = $2 x 10 = $20 extra gross pay.

Percentage differential example

Base rate: $20 per hour
Differential: 10%
Differential rate = $20 x 10% = $2 per hour.

Try it with your numbers

Use the calculator to check the examples against your own pay, hours, PTO, or raise assumptions.

Open the Shift Differential Calculator