Umbrella Payslip Calculator 2026/27

This is the single most misunderstood thing about umbrella working, and it is the reason so many contractors think their umbrella is stealing from them. The number on the assignment schedule — £400 a day, £55 an hour — is what the agency pays the umbrella company. It is not a wage. It is a contract price that has to fund a whole employment: the employer's National Insurance, the Apprenticeship Levy, the employer's pension contribution, the umbrella's own margin, and finally the worker's gross pay.

Deduct the employment costs and what is left is your gross taxable pay. That is the number your payslip should start from, and it is the only number your own income tax, National Insurance, pension and student loan come out of. On a £400 day rate for a five-day week in 2026/27, with a £25 margin and a workplace pension, the £2,000 of assignment income supports about £1,700 of gross pay — and roughly £1,045 net.

Step 1 — solve for gross pay, don't subtract to it

Employer NIC and the Apprenticeship Levy are charged on gross pay, so gross pay cannot simply be worked out by subtracting them: you have to solve for it. Write A for the assignment income, M for the margin, P for the employer pension contribution, ST for the secondary threshold for the period, e = 15% and L = 0.5%:

With e = 0.15 and L = 0.005 that divisor is 1.155. The secondary threshold is £96 a week / £417 a month (£5,000 a year), and it is frozen. Because the employer pension contribution itself depends on gross pay when it is calculated on qualifying earnings, this calculator solves the whole identity to the penny rather than approximating it.

Step 2 — split out the holiday pay

Holiday pay accrues at 12.07% of pay (reg 15B, Working Time Regulations 1998). Crucially it is a component of gross pay, not an extra on top of it:

If it is rolled up, both parts are paid this period and both are taxed this period. If it is accrued, the umbrella retains the holiday element — and the employment costs that go with it — so this period's gross taxable pay, and therefore your net pay, is lower. The toggle above changes the figures, not just the wording.

Step 3 — the payslip deductions

• PAYE income tax. The tax code sets your allowance (1257L = £12,570 for the year). Above £100,000 of income the allowance tapers away at £1 for every £2, so it is gone by £125,140. On taxable income the rUK bands are 20% to £37,700, 40% to £125,140 and 45% above. An S prefix switches to the Scottish bands: 19%, 20%, 21%, 42%, 45% and 48%.
• Employee National Insurance. 8% between the primary threshold and the upper earnings limit, then 2% above it. For the period those are £242 and £967 a week, or £1,048 and £4,189 a month. All three are frozen for 2026/27.
• Your pension contribution. Calculated either on all gross pay or on qualifying earnings — the slice between £6,240 and £50,270 a year (£120–£967 weekly, £520–£4,189 monthly). Note that the auto-enrolment lower limit of £6,240 is not the same as the NI lower earnings limit, which rose to £6,708 (£129 a week) for 2026/27.
• Student loan. 9% of gross pay above the plan threshold, rounded down to whole pounds. For 2026/27: Plan 1 £26,900, Plan 2 £29,385, Plan 4 £33,795, Plan 5 £25,000, and a postgraduate loan at 6% above £21,000. Plans 1, 2 and 4 all rose in April 2026.

The National Living Wage floor

From 1 April 2026 the National Living Wage is £12.71 an hour for workers aged 21 and over (up from £12.21). The 18–20 rate is £10.85, and the under-18 and apprentice rates are both £8.00. Your basic pay for the hours worked — before your own tax and NI, and excluding holiday pay — has to clear the applicable rate. This calculator tests against the 21-and-over rate. If the assignment rate is too low to support the minimum wage once the margin and employer NIC have come out of it, the arithmetic is telling you the rate is the problem. See GOV.UK minimum wage rates.

The April 2026 umbrella reform, accurately

A great deal has been written about this and much of it is wrong. Here is what actually changed for payments made on or after 6 April 2026:

• Joint and several liability arrived. Under s.24 Finance Act 2026 (ss.61Y–61Z1 ITEPA, SI 2026/388), HMRC can recover PAYE that an umbrella has failed to pay from another party in the supply chain as well as from the umbrella. Before 6 April 2026 there was no statutory chain liability at all.
• The party on the hook is the agency closest to the end client. Where that agency is connected with the umbrella (s.993 ITA 2007) or is not UK-resident, the liability falls on the end client instead.
• The umbrella still operates PAYE. Nothing was transferred. The umbrella remains the employer, runs the payroll, files the RTI and pays the tax over. Anyone telling you the agency or client now has to operate PAYE for umbrella workers has this wrong.
• Your take-home pay is unchanged by the reform. Not a single rate, threshold or formula on this page moved because of joint and several liability. It changes who HMRC can recover from, not what you are paid.

What it does change is the incentive: an agency or client that is now exposed to somebody else's unpaid PAYE has a very strong reason to use compliant umbrellas only. Expect shorter preferred-supplier lists and more due diligence. Separately, the Employment Rights Act 2025 will bring umbrellas within the Conduct Regulations, but that is not in force yet and is expected in 2027. There is still no statutory cap on the umbrella margin.

What did and did not change in the numbers for 2026/27

For an umbrella payslip specifically, very little moved. Income tax rates and thresholds, the £12,570 personal allowance, employee NI at 8% and 2%, employer NIC at 15% above £5,000, and all three auto-enrolment thresholds are frozen — the income tax and NI threshold freeze now runs to 5 April 2031. What did move: the student loan thresholds for Plans 1, 2 and 4, the National Living Wage to £12.71, the NI lower earnings limit to £129 a week (£6,708) and the Scottish starter and basic band tops to £16,537 and £29,526. Switch the tax year above to see the difference on your own figures.

What this calculator deliberately does not do

• It does not model cumulative PAYE. It annualises one period, which matches reality when your pay is level and diverges when it is not.
• It treats your pension contribution as a deduction from pay. If your umbrella runs a net pay arrangement your income tax will be lower than shown, and under salary sacrifice your gross pay itself drops — which also cuts employer NIC. Salary sacrifice pension contributions remain fully NIC-exempt and uncapped in 2026/27; the £2,000 cap does not start until 6 April 2029.
• It does not credit the £10,500 Employment Allowance to your calculation. That is an employer-level allowance and it cannot sensibly be apportioned to one worker.
• It does not model reimbursed expenses, statutory payments, week 53, or the director's annual earnings period. Umbrella workers are employees, not directors, so the ordinary period-by-period NI rules apply.