What an umbrella company actually is

An umbrella company is an employment business that hires contractors under an overarching contract of employment and then supplies those contractors to agencies or end clients on a temporary basis. The umbrella operates PAYE and National Insurance on every payment, which means the contractor receives a salary rather than an invoice payment. That single fact has large consequences for holiday pay, take-home and tax.

For many contractors the umbrella route is the natural fit for an inside-IR35 engagement, because the umbrella handles all the employment tax administration that would otherwise sit with the agency or client. For a genuinely inside-IR35 assignment where you have no outside work running alongside it, the umbrella is often the simpler and frequently the more economic route when compared with maintaining a limited company for inside-IR35 income. If you want to explore that comparison fully, the guide on limited company versus umbrella contracting works through the numbers.

The assignment rate: where your pay actually starts

Understanding holiday pay requires understanding the assignment rate first. The assignment rate is the total hourly or daily amount the agency or end client pays to the umbrella for your services. It is not your gross salary: it is the umbrella's entire funding envelope for you, and everything comes out of it.

From that single rate the umbrella deducts, in order:

  • Employer Class 1 NIC at 15% on earnings above the secondary threshold of £5,000 (2026/27). This is a genuine employment cost and it is substantial on a typical contractor day rate.
  • The Apprenticeship Levy (0.5% of the payroll bill above £3 million per year; most umbrella companies with a large enough payroll pass this cost through pro-rata to each worker's rate).
  • The umbrella's margin, a fixed weekly or monthly fee that covers the umbrella's running costs and profit. A transparent margin is a sign of a compliant umbrella; a blended, undisclosed margin is not.

What remains after those three deductions becomes your gross pay, from which PAYE income tax and employee Class 1 NIC (8% between the primary threshold of £12,570 and the upper earnings limit of £50,270, then 2% above, for 2026/27) are then deducted in the normal way to reach your net take-home.

Holiday pay sits within that gross pay calculation, not on top of it. A contractor billing the same day rate through a compliant umbrella will take home less than through an outside-IR35 limited company, precisely because employer NIC is drawn from the rate rather than being funded by the client on top of it. This is not a failing of the umbrella model: it is the correct and transparent operation of employment tax.

Holiday pay: the statutory entitlement

Every umbrella worker is an employee for the purposes of the Working Time Regulations 1998 and the Employment Rights Act 1996. That means at least 28 days of paid annual leave per year (5.6 weeks, which may include bank holidays depending on the contract terms). The entitlement is a statutory floor, not something the umbrella can waive or absorb without consequence.

Holiday pay must be paid at the rate of a week's pay as defined under the Employment Rights Act, which for a worker with variable hours is calculated by reference to the average weekly earnings over the previous 52 weeks in which pay was received. For a contractor on a fixed day rate working consistent hours, the calculation is more straightforward, but the principle is the same: holiday pay should reflect what you actually earn, not an arbitrary lower figure.

A compliant umbrella operates holiday pay in one of two ways, both of which must be disclosed clearly in the Key Information Document before you start.

Method one: accrued and paid on leave

The umbrella accrues a holiday pay element from each payment cycle and holds it in a designated pot. When you notify the umbrella that you are taking leave, it releases the accrued amount as a separate payment. This is the cleaner model from an employment-law perspective because it most closely mirrors how a conventional employer handles statutory leave. The KID must show the rate at which holiday pay is accruing, and the payslip must itemise the accrued amount. On termination, any unused accrued holiday pay must be paid to you: the umbrella cannot retain it.

Method two: rolled-up holiday pay

Rolled-up holiday pay means the holiday entitlement is included in each regular payment rather than held back. Following the Supreme Court's decision in Harpur Trust v Brazel [2022] UKSC 21 and subsequent HMRC guidance, rolled-up pay is not automatically unlawful but it must satisfy strict conditions: the rolled-up element must be a separately identified sum on every payslip, not a blended rate; it must be clearly agreed in the contract; and crucially, it must not be used as a reason to discourage or prevent you from taking the statutory leave you are entitled to. An umbrella that rolls up holiday pay and then informally expects you never to take leave is in breach of the Working Time Regulations regardless of what the contract says.

If your payslip says "holiday pay included" with no separate figure, ask the umbrella to itemise it. If it cannot, that is a compliance failure worth raising formally.

The Key Information Document: your pre-assignment checklist

The Conduct of Employment Agencies and Employment Businesses Regulations 2003 require an umbrella to provide a Key Information Document (KID) before an assignment starts. The KID is the single most important transparency tool for an umbrella worker. It must set out:

  • The gross assignment rate (the amount the agency or client pays the umbrella).
  • Every deduction the umbrella makes before calculating gross pay: employer NIC, the Apprenticeship Levy and the umbrella's margin, each as a separate named figure.
  • The resulting gross pay.
  • The estimated PAYE income tax and employee NIC deductions.
  • The expected net take-home pay.
  • Holiday pay, shown as a separate element whether it is accrued separately or rolled up.

Read the KID carefully before signing. If the assignment rate shown on the KID does not match what the agency quoted you, ask why. If the holiday pay line is missing, or if the deductions do not reconcile to the numbers quoted verbally, request a revised KID in writing before starting. Accepting an assignment without a KID means you are operating without the transparency the regulations require, which makes it harder to spot problems later.

A worked example using round numbers illustrates the model. Suppose the assignment rate is £500 per day, five days a week. Over a typical year with 20 working days of leave, the umbrella invoices for 232 working days at £500, producing £116,000. From that the umbrella deducts employer NIC at 15% on the grossed-down wage above the £5,000 secondary threshold (roughly £14,000 at this assignment rate), the Apprenticeship Levy (a smaller pro-rata amount), and its stated fixed margin. The remaining sum is your gross pay, from which income tax and employee NIC are then deducted. Holiday pay, whether accrued separately or rolled up, comes from within that gross envelope. Your KID should make the arithmetic transparent at every step.

What a compliant umbrella looks like

Two industry accreditation schemes are the main reference points for umbrella compliance in the UK: the Freelancer and Contractor Services Association (FCSA) and Professional Passport. Umbrella companies accredited by either body are independently audited against a published compliance code that includes correct PAYE operation, transparent KIDs, proper holiday pay handling and no involvement in tax-avoidance structures.

A compliant umbrella will:

  • Provide a KID before the assignment starts, with every deduction itemised.
  • Issue payslips that reconcile clearly to the KID figures.
  • Show holiday pay as a distinct line, never buried in a blended rate.
  • Pay accrued holiday pay on termination without requiring you to argue for it.
  • Charge a fixed, disclosed margin rather than a percentage skimmed invisibly from the assignment rate.
  • Operate PAYE correctly on all income, including the holiday pay element.

If an umbrella cannot or will not do all of the above, treat that as a serious compliance concern. The April 2026 reform has raised the stakes for agencies too, which means most mainstream recruiters now maintain preferred-supplier lists of FCSA or Professional Passport accredited umbrellas precisely because non-compliance now exposes the agency itself to liability.

The April 2026 reform: joint and several liability explained

The most significant change to the umbrella market in recent years took effect on 6 April 2026. Finance Act 2026 s.24 inserted new Chapter 11 (ss.61Y to 61Z2) into Part 2 of the Income Tax (Earnings and Pensions) Act 2003 (ITEPA), creating a joint and several liability (JSL) regime for PAYE and NIC on umbrella-worker pay.

What the change does, stated precisely: where a worker is supplied through an umbrella and that umbrella fails to remit PAYE and NIC to HMRC, the recruitment agency that contracts with the end client becomes jointly and severally liable for the unpaid amounts. Where there is no recruitment agency in the supply chain, the liability passes to the end client directly. The umbrella remains the legal employer throughout. The employment relationship does not move to the agency. What moves is the tax liability when the umbrella defaults.

What the change does not do: it does not require the agency to become the employer, to operate payroll itself, or to take over any of the umbrella's employment obligations. It is a tax-compliance measure, enacted because HMRC estimated approximately £1 billion of annual PAYE avoidance attributable to non-compliant umbrella arrangements. Umbrella regulation more broadly, covering employment rights and market conduct, is a separate policy track that has not yet been enacted.

The practical effect on the market is already visible. Agencies have tightened their preferred-supplier lists because they now carry direct financial risk from umbrella non-compliance. This is broadly good news for workers at compliant umbrellas: the rogues face more difficulty getting onto agency supply chains. It also means contractors should expect agencies to ask which umbrella they want to use and, if it is not on the approved list, to face pressure to switch. Choosing an FCSA or Professional Passport accredited umbrella reduces that friction.

The reform does not change the calculation of holiday pay itself. Your statutory entitlement under the Working Time Regulations is unaffected. What it changes is who HMRC can pursue if the umbrella fails to account properly for tax on all of your pay, including the holiday element. That strengthens the financial incentive for every party in the chain to use umbrellas that handle everything correctly.

For a broader understanding of what inside-IR35 status means and why it drives umbrella use in the first place, the inside IR35 guide covers the consequences in full.

How holiday pay interacts with the inside-IR35 picture

Umbrella workers are, by definition, employees for tax purposes: the umbrella operates PAYE on every payment, which is the correct treatment for inside-IR35 income. Holiday pay is part of that employment income. It is taxed as earnings, subject to PAYE and employee NIC in the same way as the rest of the gross pay. There is no special holiday-pay tax treatment and no scope for it to be paid free of PAYE through an umbrella.

This contrasts with the position outside IR35, where a limited-company contractor can structure income as a salary and dividend mix, retain profits in the company, and make employer pension contributions to reduce the tax bill. An umbrella worker does not have those levers. The comparison is not always as stark as it looks on paper, because an outside-IR35 limited company also carries running costs (accountancy, company filings, insurance, PAYE compliance), but the structural difference is real and worth understanding before you choose a route.

If you have a mix of work, some inside and some outside IR35 simultaneously, keeping a limited company for the outside work and using an umbrella for the inside engagement is a common and sensible combination. The limited company handles the outside assignments, the umbrella handles the inside ones, and you avoid having to operate a deemed employment payment through your own PSC on the inside income. The IR35 explained guide sets out when the off-payroll working rules apply and who decides your status.

When holiday pay goes wrong: what to watch for

Most disputes over umbrella holiday pay fall into one of four categories.

Retained but never paid

The umbrella shows a holiday accrual on the payslip but there is no mechanism to actually claim it. Workers who do not take formal leave never receive the money, and on termination the pot disappears. This is an unlawful deduction from wages under the Employment Rights Act 1996. You can bring an employment tribunal claim for up to two years of unpaid holiday pay, and in some circumstances further back if there has been a continuing series of deductions.

Rolled up but not itemised

The umbrella claims holiday pay is included in the gross rate but no separate figure appears on the payslip. As noted above, rolled-up pay is only valid where the amount is separately and transparently identified. A vague "included" statement does not meet the legal standard and leaves the employer exposed to a claim for the full holiday entitlement as additional pay.

Holiday pay calculated on basic pay only

Where a worker regularly receives additional payments tied to the work (overtime premiums, commission or regular bonuses), the correct holiday pay rate must reflect those payments, not just the bare basic. Holiday pay calculated only on a stripped-back basic salary may understate the entitlement, particularly for contractors who regularly work above standard hours. Check that the holiday pay shown on your KID and payslips uses the correct reference period average.

Leave not permitted despite rolled-up pay

An umbrella that rolls up holiday pay and then informally discourages or prevents workers from taking leave is in breach of the Working Time Regulations, regardless of what the contract says. You have the right to take 28 days of leave per year. If an umbrella or agency suggests that taking leave will result in the assignment ending or the rate being reduced, that is a serious compliance issue worth raising with ACAS and, depending on the circumstances, reporting to HMRC.

The avoidance-scheme warning

The most dangerous version of the umbrella problem is not a poorly run compliant umbrella: it is an arrangement designed from the start to avoid PAYE by paying workers through mechanisms that are not wages.

These schemes take several forms. Loan arrangements are the most common: the worker receives a small PAYE salary and the bulk of the assignment rate as a "loan" that is never expected to be repaid. Because the loan is not technically income, no PAYE is applied, and the stated take-home looks significantly higher than a compliant umbrella would produce. Mini-umbrella fraud works differently: workers are split across dozens of small entities, each claiming the employer NIC Employment Allowance multiple times, with the resulting NIC saving passed partly to the worker as an apparent uplift. Offshore routing, retention arrangements and "advances" are other variants on the same theme.

The common thread is a promised take-home rate that cannot be explained by honest PAYE arithmetic. If the numbers on a KID or a verbal quote suggest take-home materially above what standard PAYE on the assignment rate would produce, that is not an efficient umbrella: it is likely a scheme. HMRC has published Spotlights and runs the "Tax avoidance: don't get caught out" campaign specifically targeting umbrella workers being drawn into these arrangements.

The firm's stance is unequivocal: do not use any such arrangement. HMRC pursues the worker for the unpaid tax, with interest and penalties, often years after the engagement ends. The fact that an agency or an umbrella says the scheme is legal, that HMRC has been notified, or that many other contractors use it does not protect you. An agency's or recruiter's assurance that a structure is compliant is not a guarantee and carries no legal weight in a tribunal or HMRC compliance check.

The April 2026 JSL reform means agencies now have a direct financial reason to refuse non-compliant umbrellas too, which should reduce the supply of these arrangements through mainstream channels. But the schemes will migrate to less regulated parts of the market. The test is always the same: if the take-home cannot be explained by transparent PAYE arithmetic starting from the assignment rate, do not proceed.

The off-payroll working rules guide explains how the supply-chain liability and the SDS process interact with the umbrella's role in more detail.

Choosing a compliant umbrella: a practical checklist

Before accepting an umbrella assignment, work through the following.

  1. Request the KID before signing. It should arrive as a matter of course. If the agency or umbrella hesitates, that is a warning sign.
  2. Verify accreditation. Check the FCSA or Professional Passport website directly to confirm the umbrella is currently listed. Accreditation can lapse and some operators misrepresent their status.
  3. Run the arithmetic. Take the assignment rate, subtract the figures shown for employer NIC, Apprenticeship Levy and umbrella margin, and check the result matches the gross pay figure on the KID. Then apply standard PAYE and employee NIC to the gross pay and see whether the net matches what is shown. If it does not reconcile, ask why.
  4. Check the holiday pay line. It should appear as a distinct figure, not a vague inclusion.
  5. Understand the leave process. How do you notify leave? How quickly is the payment processed? What happens to accrued leave if the assignment ends?
  6. Compare take-home against a market benchmark. Compliant umbrella take-home from a given assignment rate is consistent across FCSA members within a small margin. If one umbrella is quoting materially higher take-home than others on the same rate, the difference must be explainable. If it is not, walk away.

Inside IR35, umbrella, and the question of IR35 status itself

The umbrella route makes most sense for assignments that are genuinely inside IR35, either because the end client has determined the engagement is inside under the off-payroll working rules (Chapter 10 of ITEPA 2003, which applies where the client is medium or large), or because the contractor has assessed the engagement as inside under the original intermediaries legislation (Chapter 8, which applies where the client is small). For medium and large clients the status determination is the client's responsibility, set out in a Status Determination Statement (SDS) under ITEPA s.61NA.

If you believe a status determination is wrong, you have the right to use the client-led disagreement process: the client must consider your representations and respond within 45 days. A blanket determination applied to a whole category of contractors without individual assessment is very likely a failure of the reasonable-care requirement, which can invalidate the SDS and shift liability to the client. The SDS guide explains the disagreement process in detail.

Where an engagement is genuinely outside IR35, the umbrella route is rarely the right choice: you lose the tax planning flexibility of a limited company without getting anything in return. Outside-IR35 contractors should consider whether the IR35 status assessment is correct and, if it is, whether a limited company with appropriate outside-IR35 structuring is the better vehicle.

Next steps

Holiday pay is one piece of a larger picture. Getting the umbrella versus limited-company decision right, understanding how the off-payroll rules affect your engagement, and ensuring any umbrella you use is genuinely compliant under the April 2026 rules all have a direct bearing on your take-home and your tax exposure. If you want guidance specific to your own situation, talk to the team or review the services page to see how we work with contractors across both umbrella and limited-company structures.