NurslyWhat Is Shift Differential Pay? A Nurse's Guide With Examples
Shift differential pay is extra money on top of your base hourly rate for working less popular hours — usually nights, evenings, weekends and sometimes holidays. For nurses, differentials can add a noticeable amount to every paycheck, so it’s worth knowing exactly how yours are calculated.
How shift differentials are paid
Employers pay differentials in one of two ways:
- A flat amount per hour. For example, $4 an hour extra for night shifts. Your rate on a night shift becomes base + $4.
- A percentage of your base rate. For example, 10% extra for nights. On a $40 base rate, that’s $4 an hour, so you earn $44.
The amounts are set by your employer, union contract or (outside the US) your award or pay agreement. They vary widely between hospitals, so the figures in this guide are examples only — check your contract or ask payroll for your real ones.
The most common types of differential
| Differential | When it applies | Example |
|---|---|---|
| Night | Hours or shifts overnight, often from around 11 pm to 7 am | +$4/hr or +10% |
| Evening | Hours in the late afternoon and evening, often from around 3 pm to 11 pm | +$2/hr or +5% |
| Weekend | Shifts on Saturday and Sunday (some hospitals start the weekend Friday night) | +$3/hr or +7.5% |
| Holiday | Recognized holidays — often paid as a multiplier, such as 1.5× | 1.5× your rate |
Some employers also pay extra for charge nurse duties, precepting, certifications or being on call. Those work differently from shift differentials, but they add to your hourly earnings in a similar way.
How differentials stack
Differentials usually stack: if you work a night shift on a Saturday, you get both the night and the weekend differential.
Example with flat amounts: base $40 + $4 night + $3 weekend = $47 an hour for a Saturday night.
Example with percentages: base $40 + 15% night ($6) + 10% weekend ($4) = $50 an hour. Note that each percentage is usually taken from the base rate, not added on top of each other — but some contracts work differently, so check yours.
Rules also differ on which hours count. Some hospitals pay the night differential for the whole shift if most of it falls at night; others pay it only for the hours inside the night window. If your 7 pm–7 am shift only earns the night differential from 11 pm, that changes your pay noticeably.
Do differentials count toward overtime?
In the United States, yes — in most cases. Under the Fair Labor Standards Act, shift differentials are part of your regular rate of pay, and overtime must be paid at 1.5× that regular rate, not just 1.5× your base rate.
Example: you earn $40 an hour plus a 15% night differential and work four 12-hour night shifts in one week — 48 hours.
- First 40 hours at $46.00 ($40 + 15%) = $1,840
- Last 8 hours of overtime at $69.00 ($46.00 × 1.5) = $552
- Total: $2,392
If your employer paid overtime on the base rate only ($60 an hour), you’d get $2,320 — $72 less for the same week. When the regular rate includes several differentials across the week, it’s often calculated as a weighted average, so your overtime rate can differ slightly from this simple example. Holiday premiums can also be handled differently, depending on your employer’s policy.
You can run your own numbers with the free nurse overtime and shift differential calculator.
Differentials outside the US
- UK (NHS): extra pay for nights, weekends and bank holidays is called unsocial hours payments (enhancements). Under Agenda for Change it’s a percentage on top of basic pay, and the rate depends on your band and when you work.
- Australia: extra pay is paid as penalty rates set by your award or enterprise agreement — for example, for night shifts, Saturdays, Sundays and public holidays.
- Canada: most nurses get shift premiums and weekend premiums set in their collective agreement, often as a flat amount per hour.
How to check your paycheck
- Find your differentials in your contract or offer letter: the amount, and the hours or days they apply to.
- Write down each shift you worked, its hours and which differentials apply.
- Work out the rate for each shift and multiply by the hours.
- Add overtime for any hours over 40 in the pay week (or over your contract’s limit), at 1.5× the full rate including differentials.
- Compare with your pay stub. Differences often come from the hours window for nights, the weekend start time, or overtime calculated on the base rate only.
Track your differentials automatically
Doing this every pay period gets tedious. In Nursly, you enter your base rate and differentials once — night, evening and weekend differentials, holiday multiplier, overtime threshold and estimated tax — and every shift you add shows what it earns, including overtime. Weekend shifts are detected from the date, and evening differentials are counted for the hours you work between 3 pm and 11 pm.
If your hospital pays a flat amount, convert it to a percentage of your base rate when you enter it in Nursly: $4 on a $40 base rate is 10%.