GoInterim
UK specialist matching

UK contractor accountants, IR35-aware, from £44/mo.

Match with UK accountants who actually optimise day-rate take-home week by week — not file year-end and disappear. IR35 status per engagement, take-home modelling, contractor insurance, pension structuring.

From £44 /mo · single-engagement contractor
Vetted UK firms Free intro Matched in 24h Published partner rates
Your contractor stack gointerim.co.uk
Contractor accountantSingle engagement to start
£44/mo
IR35 status reviewsPer engagement
incl.
Contractor insurancePI + PL + IR35
from £25/mo
Director SIPPTax-efficient extraction
from £0 platform
What we help with

Accounting is the core. The rest of the stack is the win.

A specialist accountant solves the immediate problem. The rest — software, insurance, ops — usually needs to land at the same time. We match the lot in one go.

Accountant

Contractor-specialist accountant

Ltd company management, monthly take-home modelling, allowable expenses, dividend optimisation, R&D credit if you build tools.

Common stack: Typical fees £44-£200/mo.

IR35

Status reviews + contract templates

Per-engagement IR35 status assessments. CEST review, client contract markup, status determination support. Critical post-2021 off-payroll reform.

Common stack: Specialist IR35 reviewers.

Insurance

Contractor insurance bundle

Professional indemnity, public liability, employers' liability (where required), plus IR35 enquiry cover.

Common stack: Hiscox · Markel · Caunce O'Hara · QDOS.

Pension

Director pension / SIPP

Company-paid contributions are one of the most tax-efficient extraction routes for contractors. Set up properly day one.

Common stack: Penfold · PensionBee · AJ Bell · Hargreaves Lansdown.

Get matched in 60 seconds

Six quick questions. We'll come back with your stack.

No fees, no obligation. The specialists on our bench publish their prices — you'll see them before you commit.

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FAQ

How much does a contractor accountant cost in the UK?

If your question isn't here, email info@gointerim.co.uk.

How much does a contractor accountant cost in the UK?

UK contractor accountants start from £44/month for single-engagement Ltd-company contractors. Multi-engagement or higher-rate contractors typically pay £75-£150/month including IR35 advisory, monthly take-home modelling, dividend optimisation and director payroll. Umbrella users pay nothing for accounting (the umbrella handles it) but have higher margin loss; the matched firms can model both side-by-side.

What is IR35?

IR35 is the UK tax legislation that determines whether a contractor working through a limited company is genuinely self-employed (outside IR35) or effectively an employee of the client (inside IR35). Inside-IR35 work is taxed roughly the same as employment, while outside-IR35 contracting can be significantly more tax-efficient. Status determination depends on the actual working relationship, not just the contract.

Should I use an umbrella company instead?

For inside-IR35 contracts, umbrella is often the simplest option. For outside-IR35 work, a limited company is usually more tax-efficient. The right answer depends on your contract mix and income band — a specialist accountant will model both.

Do you handle PSC closures?

Yes — if you're winding down a personal service company, our specialist firms handle the closure, MVL where appropriate, and the personal tax implications.

CB
About the author

Charlie Bailey · Founder, GoInterim

Charlie Bailey founded GoInterim to solve a specific problem: contractors and interim consultants need accountants who actually understand IR35 and can optimise day-rate take-home week by week, not just file year-end accounts and disappear until next April. GoInterim's bench is built around that.

IR35 status reviews per engagement, not per company. Specialist day-rate take-home modelling. The basic stuff every contractor accountant should do, that most don't.