Most contractors find umbrella take-home pay confusing at first. The day rate your agency quotes is not the amount you take home. Costs come out before your gross pay is set, and then tax and NIC come off the gross. This guide walks through the calculation step by step.
DASA Umbrella holds accreditation from FCSA, Professional Passport and SafeRec. Those are the UK’s leading compliance bodies for umbrella companies. DASA is a umbrella payroll company with FCSA, Professional Passport and SafeRec accreditation.
For the wider tax picture, read our umbrella pay and tax guide.
How does umbrella pay get calculated?
Umbrella take-home pay starts with your assignment rate. The umbrella deducts employer NIC (15%), the apprenticeship levy (0.5%), its margin, and holiday pay. What is left is your gross pay. Income tax and employee NIC then come off your gross. The final amount is your net take-home pay.
There are two stages to the calculation. Stage one turns the assignment rate into gross pay. Stage two turns gross pay into take-home pay through PAYE.
Most contractors focus on stage two, but stage one is where the biggest cut happens. Employer NIC alone takes 15% of earnings above £5,000. That is a big reduction before tax even starts.
What is an assignment rate?
The assignment rate is the total amount your agency or client pays your umbrella for your work. It is sometimes called the contract rate or the umbrella rate. It is not your gross salary. It is the pot the umbrella works from. Your gross salary is what is left after employer costs come out.
If your agency quotes £350 per day, that is your assignment rate. Your umbrella takes employer NIC, levies, its margin, and holiday pay from that figure. Whatever remains is your gross pay.
This is why two contractors on the same day rate can still end up with different take-home pay. Different pension contributions, holiday pay methods, and margins all change the result.
What gets deducted before you’re paid?
Stage one deductions come out of the assignment rate. These are employer-side costs:
- Employer NIC: 15% of earnings above £5,000 per year
- Apprenticeship levy: 0.5% of earnings above £15,000 per year
- Umbrella margin: Fixed weekly or monthly fee
- Holiday pay: Either rolled-up (12.07% added to payslip) or accrued (held until taken)
Stage two deductions come off your gross pay through PAYE:
- Income tax: 20% basic rate, 40% higher rate, 45% additional rate
- Employee NIC: 8% up to £50,270, then 2% above
- Employee pension contribution: Usually 5% minimum under auto-enrolment
For a deeper explanation of NIC, read our guide to how umbrella National Insurance works.
A worked example at 2026-27 rates (£350/day)
Here is a step-by-step calculation for a contractor on £350 per day, working 5 days a week. Assumptions: 46 working weeks per year, rolled-up holiday pay, standard tax code 1257L, 5% employee pension contribution, no salary sacrifice.
Annual assignment rate:
£350 x 5 days x 46 weeks = £80,500
Stage one: employer-side deductions
Holiday pay (rolled-up at 12.07%): £80,500 / 1.1207 = £71,830 base + £8,670 holiday pay
Use the £71,830 base for employer cost calculations:
Employer NIC secondary threshold: £5,000 per year
Employer NIC at 15% on (£71,830 – £5,000): £10,025
Apprenticeship levy at 0.5% on (£71,830 – £15,000): £284
Umbrella margin (example): £125 per month x 12 = £1,500
Total employer deductions: £10,025 + £284 + £1,500 = £11,809
Gross pay:
£71,830 – £11,809 = £59,421 (before PAYE)
Gross pay including holiday pay: £59,421 + £8,670 = £68,091 annual gross
Stage two: PAYE on gross pay of £68,091
Personal allowance: £12,570 (no tax)
Basic rate 20% on £37,700 (£12,571 to £50,270): £7,540
Higher rate 40% on £17,821 (£50,271 to £68,091): £7,128
Total income tax: £14,668
Employee NIC:
8% on £37,700 (£12,570 to £50,270): £3,016
2% on £17,821 (£50,271 to £68,091): £356
Total employee NIC: £3,372
Employee pension at 5% of gross: £3,405 (to pension, not lost)
Net take-home pay (excluding pension):
£68,091 – £14,668 – £3,372 – £3,405 = £46,646 per year
That is roughly £3,887 per month.
Adding pension: £3,405 goes into your pension pot, so your total earnings including pension are £50,051.
This example uses rolled-up holiday pay. With accrued holiday pay, your weekly take-home is lower during work weeks. It is higher when you take leave. The annual total stays the same.
How salary sacrifice affects your take-home
Salary sacrifice lets you move part of your gross pay into your pension before tax and NIC are applied. You pay income tax and employee NIC on a lower figure. That usually means more money goes into your pension pot and less goes to HMRC.
Using the example above, say you sacrifice an extra £200 per month into your pension. Your gross pay for tax purposes drops by £2,400. You save income tax at 40% on £2,400 if you are a higher rate payer: £960. You also save employee NIC at 2% on £2,400: £48. Total saving: £1,008 per year.
At the basic rate, the tax saving is 20%. That is £480 in income tax plus £192 in NIC. Total saving: £672 per year.
The sacrifice goes into your pension, not lost. The net cost of the extra contribution is lower than the headline figure.
Read our salary sacrifice and your pension for the full explanation.
How NMW limits salary sacrifice
Your umbrella must keep your hourly rate above the National Minimum Wage after any salary sacrifice. The National Living Wage rate is £12.71 per hour in 2026-27. If your salary sacrifice would take your hourly rate below that, the umbrella has to limit the sacrifice. You cannot sacrifice your way below NMW.
This limit mainly affects contractors on lower assignment rates. A contractor on £350 per day has plenty of room above NMW. A contractor on £150 per day may hit the ceiling sooner.
Here is how the limit works. Your umbrella calculates your effective hourly rate after sacrifice. If it falls below £12.71, they reduce the sacrifice to stay compliant. They will tell you the maximum sacrifice amount available at your rate.
If you are near the NMW cap, raise your assignment rate with your agency. That is the fix, not reducing the sacrifice.
How do you estimate your take-home pay?
Use the DASA umbrella pay calculator to model your take-home quickly. Enter your day rate or hourly rate, pension contribution, and holiday pay preference. The calculator uses 2026-27 rates for all deductions. It gives you a clear estimate within seconds.
The worked example above shows typical numbers for a £350/day contractor. Your numbers will differ based on your rate, tax code, pension choice, and working pattern.
If you want a quick estimate, try the umbrella pay calculator. It is the easiest way to see how the numbers change.
Once you’re paid, compare the numbers with your actual payslip. If something does not add up, read our what each payslip line means. It explains what each line means.
