What does the Night Shift Allowance Calculator do?

Calculate night shift premium at 15-100% rates. See annual extra earnings from night work. All calculations are performed in your browser using official UK rates and thresholds.

Is this calculator based on 2025/26 rates?

Yes. This calculator uses the current 2025/26 UK tax year rates for income tax, National Insurance and other deductions, effective from 6 April 2025.

Does this include pension contributions?

This calculator can factor in workplace pension contributions. Under auto-enrolment, the minimum is 8% total (5% employee + 3% employer) of qualifying earnings.

Night Shift Allowance Calculator

Calculate night shift premium at 15-100% rates. See annual extra earnings from night work.

Last updated: April 2026 · Source: GOV.UK — Night working hours

Base Annual Salary

Night Shifts/Week

Hours/Night Shift

Night Premium (%)

Night Shift Premium

+£4,480.00/year

+£373.33/month

Base Hourly

£14.36

Night Hourly

£17.95

Total Annual

£32,480.00

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.

How It Works

Night shift workers in the UK often receive a premium on top of their basic hourly rate for working unsociable hours. There is no statutory right to enhanced night pay — it is determined by your contract. Common premiums range from an additional 10% to 33%, though some sectors like the NHS pay specific unsociable hours supplements.

UK law defines a night worker as someone who works at least three hours during the night period (typically 11pm to 6am) as a normal course. Night workers have additional legal protections including a maximum average of 8 hours in any 24-hour period and the right to free health assessments.

This calculator takes your basic rate, the night premium percentage and the number of night hours to work out your enhanced pay. It then shows the tax and NI on the total earnings, comparing your take-home from night shifts versus standard-hours pay.

Example: 4 night shifts at 10 hours, base £14/hour, 25% premium

Night rate: £14 × 1.25 = £17.50/hour
Gross night pay: £17.50 × 40 hours = £700
Compared to day rate: £14 × 40 = £560
Extra gross from premium: £140
Estimated extra net (after 28% deductions): £100.80

Source: GOV.UK — Night working hours

Frequently Asked Questions

What does the Night Shift Allowance Calculator do?: Calculate night shift premium at 15-100% rates. See annual extra earnings from night work. All calculations are performed in your browser using official UK rates and thresholds.
Is this calculator based on 2025/26 rates?: Yes. This calculator uses the current 2025/26 UK tax year rates for income tax, National Insurance and other deductions, effective from 6 April 2025.
Does this include pension contributions?: This calculator can factor in workplace pension contributions. Under auto-enrolment, the minimum is 8% total (5% employee + 3% employer) of qualifying earnings.