The umbrella company market has grown considerably over the past two decades. For many contractors — particularly those working inside IR35 — an umbrella arrangement has become the default way to get paid. You work through a recruitment agency, the agency places you with an end client, and an umbrella company sits in the middle, employing you and processing your pay through PAYE.

It sounds straightforward. In practice, the sector has attracted its fair share of non-compliant operators, and HMRC has been watching. From 6 April 2026, new rules came into force that place joint and several liability for PAYE on agencies and end clients when things go wrong. That is a meaningful shift — and it is already changing how agencies choose which umbrella companies they will and won’t work with.

Below, we set out how umbrella arrangements work, what the 2026 changes actually mean in practice, and what we think contractors should be thinking about right now.

Before getting into the rule changes, it helps to be clear on how the supply chain is structured — because a lot of the confusion around umbrella companies starts here.

When you work through an umbrella company, there are typically four parties involved:

• The end client — the business where you actually do the work.
• The recruitment agency — finds the role and manages the contract between the client and the umbrella.
• The umbrella company — employs you directly, receives the contract rate from the agency, and pays your wages through PAYE after deducting income tax, employee National Insurance, and its own margin.
• You, the worker — employed by the umbrella for the duration of the assignment.

The agency is legally required to provide you with a key information document before you start, which should set out the umbrella company’s name, the minimum assignment rate being paid to the umbrella, all deductions being made, and your minimum expected gross pay. If you have not received this document, ask for it — it is not optional.

Working this way is common when a role has been assessed as inside IR35, because operating through your own limited company becomes less tax-efficient and the engaging business is responsible for the IR35 determination.

The headline change is this: agencies and end clients now face joint and several liability for PAYE taxes where an umbrella company is involved in the supply chain and fails to operate PAYE correctly.

In plain English, that means if an umbrella company underpays income tax or National Insurance — whether through error, avoidance, or outright fraud — HMRC can recover that underpayment from the agency or, in some circumstances, the end client directly. The rules apply to new and existing supply chains, and cover any payments made to workers on or after 6 April 2026.

This matters because it closes a gap that non-compliant umbrella operators had previously exploited. Historically, if an umbrella failed to pay the correct PAYE, HMRC’s options were largely limited to chasing the umbrella itself — often by that point dissolved or insolvent. The new rules remove that escape route by making the agency the first port of call for recovery.

It is worth noting the exceptions: if you operate through your own personal service company under IR35, through a managed service company, or as a salaried member of an LLP, these specific rules do not apply to you in the same way. But for the majority of contractors being placed through an umbrella, the new framework is relevant.

We expect HMRC to enforce these rules actively. The liability is not theoretical.

The practical effect of the new rules is already being felt. We are hearing from contractors that some agencies are quietly dropping umbrella companies from their approved lists — not necessarily because those umbrellas are doing anything wrong, but because the agency can no longer afford the risk of working with a provider it cannot fully verify.

This mirrors what we saw in the aftermath of IR35 reform in the public sector, and later in the private sector: whenever HMRC shifts the liability up the supply chain, the parties now bearing that risk become much more selective about who they work with.

For contractors, this creates a couple of practical issues. First, you may find that your agency will only work with a shortlist of approved umbrella companies going forward. Second, the fees and terms offered by compliant, accredited umbrellas may differ from what you were used to. That is worth factoring into your day rate calculation when negotiating new contracts.

The contractors most at risk are those working with smaller, less established umbrella operators that offer unusually high take-home pay percentages. That is the pattern we saw with the loan charge scandal — promises of enhanced income that turned out to involve non-compliant schemes. If it sounds too good to be true, it almost certainly is, and HMRC’s track record on retrospective action should give anyone pause.

If you are in the process of choosing an umbrella company — or being asked to switch — there are a few straightforward criteria worth applying.

FCSA accreditation

The Freelancer & Contractor Services Association (FCSA) accredits umbrella companies that meet defined compliance standards. It is not a government-backed guarantee, but FCSA-accredited operators are subject to independent audits. Most reputable agencies will already favour FCSA members on their approved lists.

Transparent fee structure

A legitimate umbrella company will charge a clear, fixed weekly or monthly margin — typically in the region of £15–£30 per week, though this varies. If the fee structure is opaque, or the company is promoting unusually high take-home pay figures, ask specifically how that is being achieved. Any answer that involves anything other than standard PAYE should be treated as a red flag.

A readable payslip

Your payslip should clearly show the assignment rate, employer NIC deductions, the umbrella’s margin, and your net pay. If you cannot reconcile those figures, or figures are described vaguely, that is worth querying. You can also use our take-home pay calculator as a sanity check on what you should expect to receive for a given contract rate.

If you are uncertain whether the umbrella you are currently using is operating correctly, it is worth a conversation with a qualified accountant before your next contract renews.

This is the question we get asked most often by contractors in this situation — and the honest answer is that it depends on your IR35 status.

If your roles are consistently assessed as outside IR35, operating through your own limited company will almost always give you more flexibility and tax efficiency than working through an umbrella. You take a salary and dividends, you have more control over your finances, and you are not paying a margin to a third party for payroll processing.

If your roles are inside IR35, the picture changes. Working through a limited company inside IR35 does not offer the tax advantages it once did, and in many cases the administration of running a company adds cost and complexity without meaningful benefit. An umbrella arrangement, through a compliant provider, may genuinely be the simpler route.

The challenge is that many contractors sit in both camps — some roles inside, some outside — which creates its own planning considerations. We work with a number of contractors across Greater Manchester and further afield on exactly this question, particularly around IR35 and the most efficient structure for their contracting work. If your circumstances are changing — whether that is a new role, a change in IR35 determination, or uncertainty about the umbrella you are currently using — it is worth getting a clear view before you commit to anything.