6 Best Accounting Firms for Contractors in the UK (2026)
Top Accounting Firms for Contractors in the UK (2026 Guide)
If you are a UK contractor looking for an accountant, the honest answer is that the best firm is not the most famous one — it is the one that genuinely specialises in contractor accounting, understands IR35 inside out and gives you a clear fixed fee with no hidden surprises.
This guide lists six of the top accounting firms for contractors in the UK in 2026, covering what each one is known for, who they suit best and what to expect from them. Whether you are setting up your first limited company, switching from a generalist accountant or looking for stronger IR35 support, this guide will help you find the right fit.
Disclaimer: This list is based on publicly available information, contractor specialisation, professional accreditations, pricing transparency, customer reviews and the range of services offered. The firms are listed for informational purposes and are not ranked in a specific order.
In This Article
What Makes a Contractor Accounting Firm Worth Considering?
Before getting into the list, it helps to know what separates a genuinely strong contractor accounting firm from one that just markets itself as one. The key factors are:
- Contractor specialism — the firm should work primarily with limited company contractors, not just occasionally
- IR35 expertise — deep, current knowledge of off-payroll working rules, not just a passing mention on their website
- Fixed and transparent fees — you should know exactly what you are paying and what it covers
- Professional accreditation — ACCA, ICAEW, or FCSA membership adds a layer of verified credibility
- Dedicated accountant — one person who knows your business, not a rotating team
- Cloud software — FreeAgent or Xero as standard, included in the monthly fee
For a full breakdown of what to look for, see our guide: How to Choose a Contractor Accountant in the UK
6 Top Accounting Firms for Contractors in the UK (2026)
| Firm | Best For | Monthly Fee |
|---|---|---|
| Henleaze Tax Consultancy | Bristol contractors, personal service | From £70.50 + VAT |
| Gorilla Accounting | Responsiveness, new contractors | Contact for pricing |
| Clever Accounts | IR35 complexity, inside/outside flexibility | Contact for pricing |
| SG Accounting | Value for money, solid online service | From £59.50 + VAT |
| Integro Accounting | IT contractors, flexible onboarding | Contact for pricing |
| Dolan Accountancy | Healthcare and locum contractors | Contact for pricing |
Gorilla Accounting
Website: gorillaaccounting.com
Founded in 2015, Gorilla has built one of the highest Trustpilot ratings of any UK accountancy firm, 5.0 out of 5 from over 2,100 verified reviews. Their standout feature is a Client Service Guarantee: respond to any query before 3pm the same day, or they pay you £50.
Best for: New contractors and those who prioritise fast, reliable communication.
- Same-day response guarantee or £50 compensation
- FreeAgent included at no extra cost
- Unlimited support and advice in the monthly fee
- Dedicated accountant with direct phone and email access
Accreditation: ACCA | Pricing: Contact for current pricing | Trustpilot: 5.0/5 (2,100+ reviews)
Clever Accounts
Website: cleveraccountants.co.uk
Clever Accounts offers something genuinely unique in the market — their IR35 FLEX solution allows contractors to move between limited company and umbrella arrangements within a single monthly package. For contractors whose IR35 status changes between contracts, this removes a significant administrative headache.
Best for: Contractors with complex or shifting IR35 situations, particularly in the public sector.
- IR35 FLEX — switch between limited company and umbrella in one package
- Written IR35 opinions on contracts included
- No setup fees
- End-to-end IR35 support including HMRC enquiry assistance
Accreditation: ACCA | Pricing: Contact for current pricing | Trustpilot: 4.0/5 (760+ reviews)
SG Accounting
Website: sg-accounting.co.uk
SG Accounting consistently appears on trusted contractor directories including ContractorUK and ITContracting. They are known for offering solid, reliable contractor accounting at one of the most competitive monthly rates in the market, making them a popular choice for contractors who want quality without paying premium prices.
Best for: Contractors looking for dependable core services at a competitive price point.
- One of the most competitive monthly fees in the market
- FreeAgent included as standard
- Dedicated accountant and all core services covered
- Regularly recommended across major contractor forums
Accreditation: ACCA | Pricing: From £59.50/month + VAT (promotional rate)
Henleaze Tax Consultancy
Website: henleazetaxconsultancy.com
A Bristol-based specialist working with contractors, freelancers and limited company directors across Bristol and the UK. Every client gets a dedicated accountant, a fixed monthly fee and face-to-face availability for Bristol-based clients, something national firms rarely offer.
Best for: Bristol contractors wanting local specialist support and a genuinely personal service.
- Fixed monthly fees, no hidden costs
- Dedicated accountant and IR35 guidance
- Salary and dividend planning, VAT, payroll, Self Assessment
- Face-to-face meetings available locally
Accreditation: ACCA | Pricing Fixed fee : — Contact for quote
Learn what services contractor accountants provide in the UK.
Integro Accounting
Website: integroaccounting.com
Integro Accounting is a specialist contractor accountant with a strong following among IT and technology contractors. They appear consistently on ContractorEye and ITContracting recommended lists and offer a flexible introductory pricing structure that makes switching straightforward.
Best for: IT and technology contractors looking for a specialist firm with flexible onboarding.
- Strong specialism in IT and tech contractor accounting
- IR35 advice and contract guidance included
- FreeAgent or Xero as standard
- Currently six months at half price for new clients
Accreditation: ACCA | Pricing: Contact for full pricing
Dolan Accountancy
Website: dolanaccountancy.com
Dolan Accountancy has built a specialist reputation particularly among locum doctors, dentists, nurses and other healthcare professionals contracting through limited companies. Their understanding of the specific IR35 considerations in the NHS and private healthcare sector sets them apart from generalist contractor accountants.
Best for: Locum healthcare professionals and medical contractors operating through a limited company.
- Deep specialist knowledge of locum and healthcare contractor accounting
- IR35 expertise specific to NHS and private sector arrangements
- Salary and dividend planning for healthcare income patterns
- Regularly featured on top UK contractor accountant lists
Accreditation: ACCA | Pricing: Contact directly for current pricing
How to Choose the Right Firm for Your Situation
Every contractor's circumstances are different and the right accounting firm depends on your specific needs. Here is a quick guide to help you narrow down the best fit:
- New to contracting — Gorilla Accounting and SG Accounting both offer strong onboarding support and competitive pricing, making them a solid starting point for first-time limited company directors.
- Complex IR35 situation — Clever Accounts is the standout choice, with their unique IR35 FLEX solution and written contract opinions included as standard.
- Healthcare or locum work — Dolan Accountancy has deep sector-specific expertise in NHS and private sector contractor arrangements that generalist firms cannot match.
- Bristol-based contractors — Henleaze Tax Consultancy offers local specialist knowledge and face-to-face availability that national online firms simply do not provide.
- Value for money — SG Accounting consistently offers one of the most competitive monthly rates in the market without compromising on core service quality.
For a full breakdown of what to look for: How to Choose a Contractor Accountant: 9 Key Factors
Why Henleaze Tax Consultancy for Bristol Contractors
Bristol has a growing contractor community across technology, engineering and financial services. At Henleaze Tax Consultancy, every client works with a dedicated accountant, pays a fixed monthly fee with no surprises and has access to face-to-face meetings when needed. We cover IR35 guidance, salary planning, VAT, Self Assessment and Companies House filings — all under one straightforward package.
Book a free consultation with Henleaze Tax Consultancy
Get clear guidance on your contractor status, tax planning, and how we can support you.
Final Words
Finding the right accounting firm as a contractor comes down to three things: genuine specialism, transparent pricing and solid IR35 knowledge. All six firms on this list meet that standard in their own way and the best choice simply depends on your situation and what matters most to you.
The right contractor accountant should do more than prepare your accounts. They should help you stay compliant, minimise tax and support your business as it grows.
Before making your decision, it is worth understanding how much a contractor accountant costs in the UK and reviewing the key factors in our guide on how to choose a contractor accountant.