Self-Employed vs PAYE/Umbrella: How Locum Pharmacists Get Paid

There are four common ways locum pharmacists actually get paid, and which one applies changes your admin, your take-home pay, and what you can claim back. This is a structural overview, not personalised tax advice — for your specific situation, especially anything involving a limited company, it's worth a conversation with an accountant.

You register as self-employed with HMRC, invoice pharmacies or agencies directly, and pay Income Tax and National Insurance yourself through Self Assessment once a year. In exchange for doing your own admin, you can deduct allowable business expenses — professional indemnity insurance, GPhC fees, accountancy costs — before tax, and you keep 100% of what you invoice with nothing taken as a fee.

The trade-off: no holiday pay, no sick pay, you're responsible for putting money aside for your own tax bill rather than having it deducted automatically — and, importantly, mileage is not a straightforward deduction for sole traders the way it is for employees. See our mileage allowance guidefor why — it's a big enough factor that it's worth reading before you decide how to trade.

The agency finds your shifts and pays you through payroll like a normal job — tax and National Insurance are deducted automatically before you receive it, and as an agency worker you're generally entitled to paid annual leave, either accrued or paid as a supplement on top of your rate. Least admin of the four, at the cost of the agency's cut and less control over which shifts you're offered.

Similar in spirit to agency PAYE, but the umbrella company — not the agency directly — is technically your employer for payroll purposes while you work assignments the agency finds. You get a payslip showing tax, National Insurance, and the umbrella's own margin/fee deducted. Worth checking exactly what's deducted and how holiday pay is handled — “rolled-up” holiday pay folded into the headline rate rather than shown separately is a common point of confusion, and it should be itemised, not hidden.

You set up your own limited company and invoice through it, potentially paying yourself through a mix of salary and dividends. This can be more tax-efficient at higher income levels, but comes with real company admin — annual accounts, Corporation Tax, potentially VAT — that usually needs an accountant to manage properly.

There's also a specific, non-tax-efficiency reason some locums choose this route: as a director/employee of your own company travelling to temporary client sites, mileage relief is on firmer ground than it is for a sole trader. Several accountants who specialise in locum pharmacists cite this as one of the main reasons they recommend trading through a company — see the mileage guide linked above for the detail.

Agency PAYE or umbrella tend to suit locums who want minimum admin, steady predictable shifts, and straightforward mileage relief without having to think about it. Self-employed suits locums who find their own work and want to keep full control and the full rate — just go in with clear eyes on the mileage question above. A limited company tends to make sense once you're earning enough, consistently enough, that the tax efficiency and cleaner mileage position outweigh the extra admin and accountancy cost; for most locums starting out, that's further down the line rather than the first decision to make, but it's worth knowing it's on the table specifically because of how mileage is treated, not just income tax bands.