How shift differential pay works
Understand flat-rate and percentage premiums for nights, evenings and weekends.
You worked nights or weekends, but the premium on your paycheck is smaller than you expected or missing completely.
Short answerA shift differential is extra pay tied to specific hours or shifts. The rate, eligible hours and stacking rules usually come from your employer policy, union agreement or offer letter.
Start with the written rule
A night shift does not automatically create a federal right to extra pay. Employers commonly offer a differential to fill less desirable shifts, but the policy controls when it begins, when it ends and who qualifies. Find the written policy before calculating. A coworker's rate may not apply to your department, job level or hire date.
Flat amount versus percentage
A flat differential adds a fixed amount for every eligible hour. If your base rate is $28 and the night premium is $3.25, an eligible straight-time hour is worth $31.25 before other premiums. A percentage differential uses the base rate. A 10 percent premium on $28 adds $2.80 per eligible hour.
Count eligible hours carefully
Do not assume every hour in a night shift receives the premium. A policy may start at 7 p.m., 11 p.m. or another time. It may require most of the shift to fall inside a defined window. If your shift crosses the boundary, separate eligible hours from the rest before multiplying.
Find out whether premiums stack
A Saturday night could appear to qualify for both night and weekend premiums. Some employers pay both. Others pay only the higher premium. Holiday rules may work differently again. Use the calculator to separate each premium, then apply the stacking rule in the written policy.
Why the overtime result may differ
For covered nonexempt employees, some shift differentials are included in the regular rate used to calculate overtime. Payroll may therefore use more than the base hourly rate. If your own result differs, compare the overtime rate and not just the overtime hours.
A calm way to raise a discrepancy
Write down the shift dates, eligible hours, expected premium and paycheck line item. Ask payroll which policy and eligible-hour rule were applied. A short itemized question is easier to resolve than a general statement that the check looks wrong.
What to collect before you calculate
- Base hourly rate
- Premium amount or percentage
- Eligible start and end times
- Weekend and holiday stacking rule
- Overtime treatment
Use your own rates and rules
Run the numbers, save the breakdown and compare it with your policy or pay stub.
Calculate shift differential pay →