Contractors · Inside IR35

Umbrella (Inside IR35) Take-Home Calculator 2026/27

Forced Inside IR35 and paid through an umbrella? Your take-home is far below the advertised assignment rate — and this shows exactly why. The umbrella deducts its margin, then Employer NIC (15% above £5,000) and the 0.5% Apprenticeship Levy from your rate <em>before</em> your own PAYE pay is even set. Enter your rate to see the full waterfall for 2026/27.

7 min read· Updated 20 August 2026· 🇬🇧 UK
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Key takeaways

Key takeaways · 2026/27

  • The umbrella pays Employer NIC (15% above £5,000) and the 0.5% Apprenticeship Levy out of your assignment rate — before your own gross PAYE pay is set. This is the 'dual taxation' effect.
  • It also keeps a margin (typically £15–£30/week). Only what's left becomes your gross, on which you then pay Income Tax and employee NI.
  • This is legal and standard for Inside-IR35 work — the umbrella is your employer, so the employer costs sit with it, funded from the rate.
  • Employment Allowance does not apply to single-worker umbrella arrangements, so the full Employer NIC is charged.
How it works

The "dual taxation" of Inside IR35

When a contract is caught by IR35 and you're paid through an umbrella, the umbrella becomes your employer. The assignment rate the agency quotes is an all-in figure meant to cover the cost of employing you — so before you're paid a penny of taxable salary, the umbrella takes its margin and pays the employer's National Insurance and the Apprenticeship Levy out of that rate. Only what remains becomes your gross PAYE pay, on which you then pay Income Tax and employee NI. That's why contractors describe it as being taxed twice over.

The waterfall, step by step

  1. Assignment rate — annualised from your day, hour or week rate.
  2. − Umbrella margin — the umbrella's fee, typically £15–£30 a week.
  3. − Employer NIC — 15% on pay above the £5,000 secondary threshold for 2026/27.
  4. − Apprenticeship Levy — 0.5% of the pay bill.
  5. = Your gross PAYE pay — the figure your own tax is based on.
  6. − Income Tax, employee NI, pension, student loan — leaving your take-home.
Employment Allowance doesn't help here. It can wipe out up to £10,500 of Employer NIC for many businesses, but it's specifically not available to single-director/single-worker umbrella arrangements — so the full 15% is charged on your rate.

What you can actually change

The employer costs are fixed by law, but two levers move your net: shopping for a lower umbrella margin, and making pension contributions by salary sacrifice, which cuts your tax and NI (and sometimes the Employer NIC too). If the numbers still don't work, compare the contract against a permanent role with the day-rate to salary calculator before you decide.

Employer NIC secondary threshold and rate for 2026/27, and the 0.5% Apprenticeship Levy. This models a compliant Inside-IR35 umbrella; it is not tax advice. Verify your payslip deductions and take professional advice on IR35 status.

Income & Tax

Before you sign with an umbrella company: what to check and what to avoid

By CalculatorDashboard Editorial Team·Updated ·Reviewed ·3 min read

The calculator above shows how much of an Inside IR35 assignment rate reaches you when you're paid through an umbrella company. The numbers are set largely by law: employer National Insurance, the Apprenticeship Levy and your own tax all come out in the same order whichever umbrella you use. What differs between umbrellas is the margin, how they handle holiday pay and pensions, and whether they're operating legitimately. This guide covers how to choose.

A worked example: £500 a day

Taylor takes an Inside IR35 contract at £500 a day, working 220 days a year, so £110,000 goes to the umbrella. The umbrella charges a margin of £20 a week, about £1,040 a year. It must then pay employer National Insurance at 15% on Taylor's pay above £5,000 and the 0.5% Apprenticeship Levy, both from what's left. That leaves gross pay of about £94,987 for Taylor, with about £13,498 going on employer National Insurance and £475 on the levy.

After Taylor's own income tax and National Insurance, take-home pay is about £65,650, roughly 60% of the assignment rate. A different umbrella can change the margin by a few hundred pounds a year, but it can't legally change the rest. Any umbrella claiming you'll keep much more than the calculator shows deserves serious suspicion.

Read the Key Information Document

Agencies must give you a Key Information Document before you start an assignment. It sets out the rate the agency pays the umbrella, every deduction the umbrella makes, and an example of your take-home pay. Read it alongside the calculator. If the example take-home is much higher than the calculator suggests, ask how. If the document is missing or vague, ask for it before you agree to anything.

Holiday pay and pensions

Many umbrellas pay holiday as rolled-up holiday pay, adding it to each payslip, while others hold it back and pay it when you take leave. Either can be fine, but you need to know which. If it's held back, make sure you'll get any unused balance when the assignment ends. As an employee of the umbrella you should also be auto-enrolled into a workplace pension. Ask what the employer contribution is and whether you can pay in more through salary sacrifice, which saves National Insurance and income tax.

Warning signs

HMRC regularly warns contractors about umbrella-style schemes that promise unusually high take-home pay. The usual tricks involve paying part of your income as a "loan", "grant", "bonus" or other payment described as non-taxable. These schemes don't work. HMRC can ask you, not the scheme, for the unpaid tax, often years later and with interest. If an umbrella says you'll keep 80% or more of an Inside IR35 rate, walk away.

From April 2026, agencies, and in some cases end clients, became responsible for making sure the correct PAYE is paid when they use an umbrella company. That gives legitimate agencies a strong reason to use compliant umbrellas. It doesn't protect you if you knowingly join a scheme, so the checks above still matter.

Expenses through an umbrella

Since 2016, most contractors working through an umbrella company under supervision, direction or control can't claim tax relief on travel and subsistence for ordinary commuting to their assignment. Umbrellas that advertise generous expense schemes for Inside IR35 workers are a warning sign, because HMRC treats home-to-site travel as ordinary commuting. Genuine business expenses that you'd be able to claim as an employee, such as travel between sites during the working day, can still be reimbursed. Keep receipts and ask the umbrella how it treats them before you start.

Next steps

Enter your assignment rate above to see the full waterfall from rate to take-home. To compare the result with a permanent job, the day rate to salary calculator converts in both directions, and the take-home pay calculator shows a permanent salary's breakdown.

Frequently Asked Questions

Why is my umbrella take-home so low?
Because you're effectively paying two lots of National Insurance's worth of employer cost. Under an umbrella, the assignment rate the agency quotes is the total the umbrella receives — and out of that it must pay Employer NIC (15% on pay above £5,000), the 0.5% Apprenticeship Levy and its own margin before it sets your gross PAYE pay. Then you pay Income Tax and employee NI on that reduced gross. So the headline rate and your bank balance look worlds apart even though nothing improper is happening.
What is the Apprenticeship Levy?
It's a 0.5% charge on an employer's pay bill that funds apprenticeships. Umbrella companies are employers, so they're liable for it — and, like Employer NIC, they fund it from your assignment rate. On a typical contract it's a small slice (0.5% of your gross), but it's part of why the assignment rate doesn't all reach you.
Does the umbrella pay employer NI from my rate?
Yes. This is the crux of Inside-IR35 umbrella working. The umbrella is your legal employer, so it owes Employer National Insurance — but the assignment rate is designed to be an 'all-in' figure that covers those employment costs. In practice that means the Employer NIC comes out of the rate before your gross is calculated, so economically you bear it. A permanent employee never sees this because their salary is quoted after the employer has already absorbed its NIC.
Is this legal?
Yes, when done correctly. A compliant umbrella deducts Employer NIC, the Apprenticeship Levy and a transparent margin, then runs proper PAYE on your gross — and your payslip should itemise all of it. What's not legal is a scheme that inflates 'expenses', pays part of your money as a non-taxable 'loan', or hides the deductions. If your take-home looks too good, or the payslip doesn't add up, treat it as a warning sign.
How can I get a better net — should I go Outside IR35?
If the engagement genuinely meets the Outside-IR35 tests you may be able to work through your own limited company, where the employer costs don't apply in the same way and you can take dividends — often improving net pay. But IR35 status is determined by the working relationship, not your preference, and getting it wrong is costly. This tool models the Inside-IR35 umbrella reality; compare against a permanent salary using the day-rate converter linked below, and take advice before changing your set-up.
Does the pension option save me anything?
Umbrella pension contributions are usually made by salary sacrifice, which reduces both your Income Tax and your National Insurance — and can also reduce the Employer NIC the umbrella pays, sometimes passed back to you. Entering a sacrifice percentage here reduces your taxable gross accordingly. It's one of the few genuine levers to improve an Inside-IR35 net position.
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Disclaimer: Figures are estimates based on 2026/27 rates and rules and may change. Verify with HMRC or a qualified adviser before making financial decisions.