Payroll and business support for self-employed contractors: employed PAYE, limited company or sole trader

You are good at the work. You are a groundworker, or a locum radiographer, or a cloud engineer, and the reason people book you is that you do the job properly.

The business side arrived uninvited. Registrations, invoices nobody pays on time, timesheets that go missing between a site office and an agency's payroll run, a tax return each January, and a recurring question from consultants about how you would like to be paid — asked as if you should already know.

None of that is what you are good at, and none of it is optional. What follows is the set of routes open to you, what running each one actually involves, and who does that work if you do not want to.

Being employed for your assignments#

The simplest arrangement: somebody employs you, and payroll is their problem.

Employed PAYE through a payroll provider. A provider takes you on as an employee and runs PAYE on your assignment income — tax and National Insurance at source, a payslip, holiday pay, statutory sick pay, and auto-enrolment into a pension. The agency places you, the client directs the work, the provider employs and pays you.

The feature worth understanding, because it gets least airtime, is continuity. If your year is made up of three bookings through two agencies, this route gives you one employer across all of it: one continuous employment record, holiday that accrues without resetting each time an assignment ends, and a pension that keeps going rather than starting again. For anyone whose work arrives in short blocks — locum shifts, fit-out work, project engineering, driving — that is a real benefit rather than a marketing one.

Direct PAYE with the agency. The agency employs you itself and runs its own payroll. Common in healthcare and education, less so in construction and engineering. Fewer parties in the chain; tied to that one agency.

One thing to get straight before you agree to either. The rate a consultant quotes you is usually an assignment rate — what the agency pays for your assignment — not your gross pay. Out of it come the costs of employing you: employer's National Insurance, employer pension contributions, the apprenticeship levy where it applies, your holiday pay, and the provider's fee. Those costs exist under any employment route and they are not a margin on your wages. So ask, every time: is that the assignment rate or my gross pay? A good consultant answers immediately.

Where there is a fee, it should be a fixed amount in pounds per week or per month, stated in a Key Information Document before you sign — not a percentage of your rate, which earns a provider more for identical work and makes providers impossible to compare.

Staying self-employed, with the business run properly#

CIS, if you are in construction. A deduction scheme rather than an employment model. You stay self-employed; the contractor paying you deducts 20% from the labour element of your invoice if you are registered and verified with HMRC, 30% if not, and nothing if you hold gross payment status. Materials and plant hired for the job sit outside the deduction. What is taken is a payment on account against your eventual bill, not a final tax — which is why a lot of subcontractors are owed money each year and never claim it.

Your own limited company. You contract through a company you own and direct. It gives you the most control — over pensions, over timing, over how you present to clients — and the most administration. Setting one up is straightforward: incorporation, a business bank account, PAYE and VAT registrations if you need them, share structure and a registered office. Keeping it running is the part people underestimate: annual accounts and a confirmation statement, corporation tax, VAT returns if you cross the threshold, director's payroll, dividend records, and an employment-status position you can stand behind. Where the company needs an accountant, we introduce you to the right provider.

Sole trader. The lightest structure — you register, you invoice, you file a return. No company to maintain, no corporation tax, and no separation between you and the business, which cuts both ways. Accounting introductions for this model work the same way: we introduce the provider; we do not prepare the return.

Sole trader management matters most for contractors working outside the UK, and particularly in Ireland and the EU, where it is a common engagement route and where the status question is taken seriously. Ireland tests it through the Karshan framework — control, integration, and whether you are genuinely in business on your own account. Registering as a sole trader in a country where the reality of the work is employment is not a shortcut; it is an exposure, and it comes back to you. Getting the registration, the invoicing and the filings right in the correct country is the whole job. More on that in Ireland and Europe.

Running the business behind the work#

Separate from how you are paid, and often the thing actually costing you money and evenings:

• Timesheets — submitted, approved, and chased when a site manager does not sign them
• Invoicing — raised correctly, with materials itemised where CIS applies, and VAT handled properly
• Credit control — someone chasing sixty-day terms that have become ninety
• Compliance and documents — trade tickets, qualification records and right-to-work documents, all in date and all in one place
• Records — payment and deduction statements, payslips, contracts, kept where you can find them in April

This is back office, and it is available whichever route you are on. The most common thing we hear from contractors is not that their payroll is wrong. It is that they are spending a weekend a month on paperwork and losing a few hundred pounds a year to invoices nobody chased.

The questions to ask before you agree to a route, the April 2026 small-company thresholds, and what disguised remuneration looks like, are set out in How self-employed contractors get paid in the UK: the routes, compared.

Where the honest answer is to leave things alone#

If you hold one long assignment, run your own company competently, and have someone doing the filings properly, there is nothing here for you to change.

Nor will changing route fix a rate that is too low. That is a rate conversation with the agency, and dressing it up as a payroll problem wastes everybody's time.

Some routes are not open to you regardless of preference: where a client or framework mandates PAYE, that is the end of it. And a limited company can be the wrong fit where assignments are short, you move between agencies, and the practice is not genuinely business-like — the administration still has to be paid for.

How Freelancer Supermarket helps#

We are an independent consultancy and an introducer. We are not a payroll company, we are not your employer, and we do not run payroll, prepare accounts or give tax advice.

What we do is the assessment and the introduction. We look at your sector, how many bookings you hold, where the work is physically performed and what your client or framework requires; we set out the routes that genuinely fit side by side, with the costs stated rather than glossed; and we introduce you to two or three providers from a panel we have checked — employed PAYE, CIS, limited company setup and ongoing management, sole trader registration and management in the UK or abroad, accounting introductions for those self-employed models, and back office support. A shortlist with a reason attached to each name, not a directory to scroll through.

It costs you nothing. We are paid by whichever provider you engage, the same amount whichever one it is, so there is no route we have a reason to push and no product we have to defend. If your current arrangement is already right, we will tell you so and leave it be. There is no fee riding on the answer.

The full route-by-route comparison is in how self-employed contractors get paid in the UK.