Contractor Accountants UK

What does a contractor accountant do?

They run the limited company you contract through: bookkeeping, payroll for your salary, dividend paperwork, year-end accounts and the CT600. Specialists also talk through IR35 status and expenses. They do not decide your IR35 status for the client — that sits with the client in many cases, and with you in others.

A general small-business accountant can file a CT600. A contractor specialist earns the extra fee on IR35, day-rate illustrations versus umbrella, and VAT if you are registered. Ask whether IR35 reviews are in the monthly fee or extra.

Do I need a specialist contractor accountant?

Yes if you operate a personal service company and IR35, salary-dividend mix or expenses actually move your take-home pay. No if you invoice as a simple sole trader — a general small-business package is cheaper. Umbrella-only contractors often need payroll, not a PSC accountant.

Inside IR35 and outside IR35 are different products. A firm that cannot explain who makes the status determination (you, the client, or an agency) is not a specialist.

How much does a contractor accountant cost?

Contractor packages typically run £79–£149 per month on our editorial benchmarks, including annual accounts, corporation tax, payroll and dividend advice. IR35 reviews and specialist planning are often extra. Confirm the current quote — these are not live prices.

Compare against an umbrella illustration on the same day-rate before you assume the limited company wins. Online contractor firms often undercut high-street practices because of overhead, not because they skip the CT600.

What is IR35, and can an accountant “fix” it?

IR35 (off-payroll working) decides whether a contractor working through a company is taxed like an employee on that engagement. An accountant can explain the tests and keep the paperwork tidy. They cannot honestly promise you are outside IR35 before seeing the contract and working practices.

Medium and large clients often determine status. Small clients may leave it with you. Status disagreements belong with the contract and, if needed, a tax adviser or solicitor — not a comparison directory.

Contractor accountant vs umbrella — which is cheaper?

A limited company with a contractor accountant often yields higher take-home pay when you are genuinely outside IR35. An umbrella is simpler and usually dearer in tax when you are inside IR35. Run both illustrations on the same day-rate before you pick a structure.

Umbrella still needs payslips and RTI. A PSC still needs accounts, CT600 and confirmation statement. Switching mid-year is possible; it is messy. Do not keep a company “just in case” without filing it.

What should a contractor package include?

Accounts, CT600, confirmation statement, payroll for your salary, and dividend records. VAT is extra if you are registered. Personal Self Assessment is often extra. IR35 contract reviews should be named, not assumed.

Ask who submits the FPS and who signs the accounts. Cloud software is normal — Xero, QuickBooks or FreeAgent. If you have no company, this package is the wrong buy.

• Usually in: accounts, CT600, payroll, dividends
• Often extra: VAT, IR35 reviews, personal SA100, R&D

How should I choose a contractor accountant?

Look for firms that actually talk IR35 and day-rate vs umbrella, then check ICAEW, ACCA, AAT or ICAS. Compare three monthly quotes that name payroll and VAT. Skip anyone who guarantees outside-IR35 status in a sales call.

Online contractor specialists are common and legitimate. Verify the company number and the professional-body register. Authorise them as HMRC agent only after the letter is signed.

1. Decide PSC vs umbrella on a written illustration, not a slogan
2. Ask who determines IR35 on your typical clients
3. Get three quotes including payroll and confirmation statement
4. Check the firm on a professional-body register