Running a business as a sole trader in the UK has never involved more tax complexity. Self-assessment deadlines, National Insurance obligations, allowable expenses, and the biggest change in a generation. Making Tax Digital for Income Tax, now live from April 2026 for sole traders earning over £50,000 means the margin between paying the right amount of tax and overpaying is wider than ever. The right accountant does not just file your return.
They reduce your tax bill, keep you ahead of HMRC changes, and free you to focus on building your business. This guide covers the seven best accountants for UK sole traders, rated on expertise, pricing transparency, and real client results.
7 Best Accountants for Sole Traders in the UK
| Company | Type | Starting Price | Contact |
| Nephos Group | Full-Service Financial Group | Quote-based | nephosgroup.com |
| Crunch | Online Fixed-Fee | £27 + VAT/month | crunch.co.uk |
| Mazuma Accountants | Subscription-Based | £38 + VAT/month | mazumamoney.co.uk |
| The Accountancy Partnership | Online Fixed-Fee | £24.50 + VAT/month | theaccountancy.co.uk |
| Gorilla Accounting | Digital-First Fixed-Fee | £59 + VAT/month | gorillaaccounting.com |
| Crunch | Online Fixed-Fee | £27 + VAT/month | crunch.co.uk |
| TaxAssist Accountants | National Franchise Network | Quote-based | taxassist.co.uk |
Nephos Group
Founded in 2011, Nephos Group is a full-service chartered accountancy and financial advisory firm serving sole traders, limited companies, landlords, and individuals across the UK. For sole traders, their approach is fundamentally different from a standard filing service, accounting sits within a complete financial strategy, not treated as a year-end task.
Nephos describes their sole trader services as simple, compliant accounting that helps reduce tax bills and manage cash flow effectively. In practice that means self-assessment filing, HMRC-compliant bookkeeping, VAT returns, payroll, personal tax planning, and Making Tax Digital support handled under one relationship. For sole traders whose finances involve multiple income streams, overseas elements, or plans to incorporate, Nephos also offers FCA-regulated wealth management and corporate finance advisory through the same group.
What sets Nephos Group apart: proactive advisory guidance rather than reactive compliance, cloud-powered accounting with real-time visibility, full MTD readiness, and a single relationship that can scale alongside your business as it grows.
Services include self-assessment, bookkeeping, VAT, payroll, personal tax planning, management accounts, MTD quarterly submissions, and HMRC investigation support.
Best for: Sole traders who want proactive tax planning, a complete financial picture, and an advisory relationship that grows with them.
Contact details
- Address: 180 Strand, 2 Arundel Street, London, WC2R 3DA
- Phone no: +44 207 043 2313
Crunch
Crunch is one of the UK’s most established online accounting platforms, combining award-winning software with a team of over 100 chartered certified accountants. Sole trader plans start from £27 + VAT per month and include unlimited expert support, VAT filing, self-assessment filing, and HMRC registration, handled by qualified accountants.
Their sole trader packages include Making Tax Digital for Income Tax software at no extra cost, covering quarterly submissions and final declarations for sole traders who entered the MTD regime from April 2026. That built-in MTD readiness is a genuine practical advantage rather than an add-on.
Client reviews highlight ease of use, responsive support, and the convenience of having software and accountancy in one subscription. One long-standing client described Crunch as a “reliable partner” through significant business growth over more than six years.
Services include self-assessment, VAT returns, bookkeeping, payroll, HMRC registration, MTD support, and unlimited accountant access.
Best for: Sole traders who want a well-established online platform with built-in MTD software and a large support team at a competitive price.
Contact details
- Phone no: 03304048777
Mazuma Accountants
Founded in 2006 by Lucy Cohen, Mazuma was the original subscription-based accounting service for small businesses in the UK. Their model is built on simplicity: send your paperwork through their MazApp, online portal, or freepost envelope and their team handles everything, no requirement to learn Xero or FreeAgent.
Sole trader packages start from £38 + VAT per month with tiered Basic, Plus, and Premium plans. Each client is assigned their own dedicated accountancy team as the primary point of contact, and documents are stored in HMRC-compliant cloud format, directly supporting MTD digital record-keeping requirements.
With over 16 years of trading history and a client base spanning sole traders, limited companies, and freelancers across the UK, Mazuma is a low-friction option well suited to those who want to stay completely hands-off.
Services include self-assessment, bookkeeping, year-end accounts, payroll, VAT, and HMRC-compliant digital document storage.
Best for: Sole traders who want a genuinely hassle-free, send-us-your-paperwork model with no obligation to learn accounting software.
Contact details
- Address: Dragon House, Princes Way, Bridgend Industrial Estate, Bridgend, CF31 3AQ
The Accountancy Partnership
The Accountancy Partnership has been operating since 2006 and is one of the most competitively priced dedicated online accountancy firms in the UK. Sole trader packages start from £24.50 + VAT per month, making them one of the most accessible options for early-stage businesses or those managing costs tightly.
Every client gets a dedicated in-house accountant with unlimited help and support included as standard, alongside free access to Pandle, their own bookkeeping software. With over 5,600 Trustpilot reviews, their track record is one of the most verifiable on this list. Reviewers consistently praise individual accountant responsiveness. One client described it as “the best accounting service in the UK,” highlighting “clear communication and swift responses.”
Services include self-assessment, accounts preparation, bookkeeping, payroll, VAT, CIS returns, and MTD support, all for a fixed monthly fee.
Best for: Budget-conscious sole traders who want a qualified dedicated accountant and a full service for one of the lowest fixed fees available.
Contact details
- Address: Twelve Quays House, Egerton Wharf, Birkenhead, Wirral, CH41 1LD
- Phone: 020 3355 4047
Gorilla Accounting
Gorilla Accounting is a digital-first, fixed-fee firm founded in 2015 and acquired by Azets, a UK top-10 accountancy group in 2023, while retaining its own brand and team. Their sole trader package is priced at £59 + VAT per month, all-inclusive, with a dedicated accountant assigned to every client and FreeAgent cloud software included at no extra cost, saving up to £330 per year.
Gorilla holds a Trustpilot score of 4.9 out of 5 from over 2,200 reviews, with 95% rated five stars. Their software is fully MTD-compliant, covering quarterly submissions and final declarations. Clients consistently highlight fast response times and proactive advice, one reviewer described their accountant as providing “clear and practical advice” and being “a real help in navigating the accounting and financial aspects” of running their business.
Services include self-assessment, MTD quarterly submissions, bookkeeping via FreeAgent, VAT returns, payroll, and unlimited dedicated accountant access.
Best for: Sole traders who want a premium, all-inclusive fixed-fee service with dedicated direct-dial accountant access and MTD-ready software built in.
Contact details
- Address: Belmont Suite, Paragon Business Park, Chorley New Road, Horwich, Bolton, BL6 6HG
- Phone: 0330 107 9676
TaxAssist Accountants
TaxAssist Accountants is the UK’s largest network of small business accountants, with over 400 offices nationwide and more than 100,000 clients. Unlike every other firm on this list, TaxAssist operates as a franchise network, each office is independently run by a locally based accountant trained and licensed by TaxAssist Direct.
That model offers what purely digital firms cannot: genuine face-to-face availability anywhere in the UK. Every engagement begins with a free consultation, in person, by video, or by phone and fees are fixed and tailored to individual needs. Services cover self-assessment, bookkeeping, VAT, payroll, MTD support, and business advisory.
Service quality can vary by franchise location, so checking local reviews before committing is always advisable. Use the location finder on their website to identify your nearest office.
Best for: Sole traders who value face-to-face local access and want a nationally recognised firm with a physical presence near them.
Contact details
- Address: Head Office: Second Floor, Bankside 300, Peachman Way, Broadland Business Park, Norwich, NR7 0WF
- Phone: 0800 0523 555
Choosing the Right Accountant: A Guide for UK Sole Traders
The right accountant depends on three things: how complex your finances are, how hands-on you want to be, and how much personal access you need.
For straightforward income with standard expenses, a lower-cost online firm like The Accountancy Partnership or Mazuma will handle everything efficiently. For more complex finances, multiple income sources, overseas income, or plans to grow or incorporate, a firm with genuine advisory depth like Nephos Group will deliver significantly more value than the fee difference suggests.
Confirm that your chosen firm employs ACCA, ICAEW, or AAT-regulated accountants. All seven firms on this list meet that standard. Unregulated tax advisers carry no professional accountability.
Making Tax Digital is now mandatory for sole traders earning over £50,000 from April 2026, with the threshold dropping to £30,000 from April 2027 and £20,000 from April 2028. Your accountant must already have a compliant quarterly submission process in place, not be building one.
Always confirm what is included in the monthly fee before signing up. Self-assessment filing, VAT returns, and payroll are sometimes charged separately by firms whose headline price looks attractive.
How Nephos Group Helps Sole Traders Succeed
Most accountants treat tax filing as their job. Nephos Group treats it as one part of a much larger picture.
For sole traders building real business growth, what matters most is not just whether your return was filed correctly. It is whether your business structure is right for where you are headed, whether you are extracting income in the most tax-efficient way, whether every allowable expense is being claimed, and whether your business finances are coordinated with your personal wealth and long-term goals.
Nephos provides cloud-powered accounting with full HMRC compliance, proactive tax planning, VAT management, MTD quarterly submissions, and access to FCA-regulated wealth management all within a single relationship that eliminates the fragmentation of managing multiple uncoordinated advisers. When sole traders grow into limited companies or require corporate finance support, Nephos handles every stage without the need to switch providers.
Smart Tips to Pick the Right Accounting Company
Ask specifically about their MTD process before you sign. If they cannot clearly explain how they will handle quarterly digital submissions, move on.
Check what is included in the monthly fee. The headline price and the total cost are often different; self-assessment, VAT, and payroll are sometimes extras.
Verify ACCA, ICAEW, or AAT registration on each body’s public register before appointing any accountant.
Read reviews from the past 12 months specifically, not just aggregate star ratings. How a firm behaves under deadline pressure matters more than their average score.
Prioritise proactive advice over pure compliance. The best sole trader accountants flag missed deductions, payment on account planning, and income timing opportunities, not just file what you send them.
Final Thoughts
All seven firms on this list are legitimate, well-established options for UK sole traders. The right choice depends on your income level, how complex your finances are, and whether you want digital convenience or face-to-face access.
For sole traders who want genuinely comprehensive, joined-up financial advice, Nephos Group is the standout choice. For low-cost simplicity with a dedicated accountant, The Accountancy Partnership and Mazuma deliver strong value. For premium all-inclusive digital service with industry-leading software, Gorilla Accounting is one of the best in the market. For face-to-face local access, TaxAssist has no equal on this list.
Whatever firm you choose, engage them before your next tax year begins, not the week before your self-assessment deadline. The earlier your accountant understands your finances, the more they can save you.
FAQs
Do Sole Traders In The UK Legally Need An Accountant?
No, HMRC allows you to file your own self-assessment return. However, most sole traders who use a professional accountant save more in reduced tax and avoided penalties than their accountancy fee costs. A good accountant will also ensure every allowable expense is correctly claimed, which a DIY return frequently misses.
How Much Does A Sole Trader Accountant Cost In The UK?
Fixed-fee online services typically range from £25 to £60 per month depending on the firm and what is included. More comprehensive advisory services are quote-based. Always confirm whether self-assessment, VAT returns, and payroll are included or charged separately, the headline price and the actual annual cost are often different.
What Is Making Tax Digital And Does It Apply To Me As A Sole Trader?
Making Tax Digital for Income Tax requires sole traders to keep digital records and submit quarterly income and expenditure updates to HMRC. It applies to sole traders with gross income over £50,000 from April 2026, over £30,000 from April 2027, and over £20,000 from April 2028. Your accountant must have a compliant system in place already.
What Expenses Can I Claim As A Sole Trader?
Allowable expenses include office costs, business travel, equipment, marketing, professional fees including accountancy, phone and internet, bank charges, and a proportion of home costs if you work from home. A specialist accountant will identify deductions, particularly around home office use and vehicle costs that a DIY return commonly misses.
When Should A Sole Trader Consider Switching To A Limited Company?
Generally when annual profit consistently exceeds £30,000 to £40,000, when liability protection becomes important, or when a contract or client requires it. The tax efficiencies of a limited company, particularly around salary and dividend extraction, become more significant at higher income levels. A specialist accountant should model this for your specific numbers before you make the decision.
What Happens If I Miss My Self-Assessment Deadline?
HMRC charges a minimum £100 penalty for late filing, even if no tax is owed. Additional daily penalties of £10 apply after three months, up to a maximum of £900, with further percentage-based penalties at six and twelve months. A good accountant will manage your deadlines and ensure you never face these charges.
Can My Accountant Handle An HMRC Investigation On My Behalf?
Yes. All seven firms on this list can support HMRC compliance checks, information requests, and investigations. Some include investigation support as standard; others charge separately. Confirm this before appointing, particularly if your income or expenses are complex enough to attract scrutiny.
Is A Fixed-Fee Accountant Better Than One Who Charges Hourly?
For most sole traders, yes. A fixed monthly fee means you know exactly what you are paying, and critically, you will actually pick up the phone when a question arises rather than avoiding it because of the clock. Hourly billing creates a disincentive to seek advice, which is exactly the opposite of what you need from an accountant.
What Is The Difference Between Bookkeeping And Accounting For A Sole Trader?
Bookkeeping is the ongoing recording of transactions, income, expenses, invoices, receipts. Accounting is the broader process of interpreting those records, preparing tax returns, identifying tax planning opportunities, and ensuring HMRC compliance. Most firms on this list bundle both into their sole trader packages, but confirm this before signing up.
How Do I Switch Accountants If I Am Unhappy With My Current One?
Switching is straightforward and carries no tax implications. Notify your current accountant in writing, obtain your records and any relevant prior returns, and your new firm will handle the transition from there. There is no requirement to stay with an accountant who is not meeting your needs, and the firms on this list all have onboarding processes specifically designed to make switching painless.
