The accountant cost for a small business in the UK is commonly around £50 to £300+ per month in 2026/27, depending on the business structure, services required and complexity. A straightforward sole trader may pay £150 to £600 a year, while a small limited company may pay £1,200 to £3,000+ a year for regular accounts, tax returns and support.
Mostly, the small business accountant cost depends on your business structure, transaction volume, and whether you need extra services like VAT or payroll.
This guide breaks it all down properly, with real 2026/27 figures, so you know exactly what you should be paying and what you’re actually getting for it.
Average Accountant Cost For A Small Business In The UK (2026/27)
Here’s a realistic breakdown based on current UK market pricing.
| Business type | Typical monthly cost | Typical annual cost |
| Sole trader, no VAT | £50 to £120 | £600 to £1,200 |
| Sole trader, VAT registered | £100 to £180 | £1,200 to £2,000 |
| Small limited company, no VAT | £80 to £180 | £1,000 to £2,000 |
| Limited company, VAT registered | £150 to £280 | £1,800 to £3,200 |
| Limited company with payroll (1-3 staff) | £180 to £350 | £2,200 to £4,000 |
These figures are averages, not guarantees. London and the South East usually sit a bit higher. Online firms serving clients across the UK may offer more consistent pricing regardless of location.
Accountant Cost For Small Business By Service
Sometimes it’s more useful to look at cost by task rather than by business type. This is especially true if you only need help with one or two things.
| Service | Typical UK cost (2026/27) |
| Self Assessment tax return | £150 to £350 |
| Annual accounts (limited company) | £400 to £900 |
| Corporation tax return | £200 to £500 |
| VAT return (quarterly) | £40 to £100 per return |
| Payroll (per employee, monthly) | £5 to £10 |
| Bookkeeping (monthly) | £60 to £150 |
| Company formation and setup | £50 to £150 |
If your affairs are simple, you might only need one or two of these. If you’re running a growing business, most firms bundle several together into one monthly package. This usually works out cheaper than paying separately.
What Does A Small Business Accountant Do?
Just knowing small business accountant costs is not enough. It is also worth understanding exactly what you’re paying for. Many people think accountants only file tax returns once a year. In reality, most do much more than that.
A qualified accountant can help you with:
- Bookkeeping and bank reconciliations
- Preparing annual accounts
- Corporation Tax returns for limited companies
- Self Assessment tax returns for sole traders and directors
- VAT registration and VAT returns
- Payroll, PAYE and pension administration
- Companies House filing
- Tax planning and advice on allowable expenses
- Cash flow reviews and management accounts
- Help with accounting software such as Xero, QuickBooks or FreeAgent
The exact service depends on the package. Therefore, remember to always ask what is included before comparing small business accounting fees.
What Factors Affect Accountant Cost For A Small Business?
A quote of £60 a month and a quote of £300 a month can both be “correct”, just for very different businesses.
Here are the main factors that influence the overall accountant cost for a small business:
1. Your Business Structure
Your legal structure is one of the biggest factors in determining accountant cost.
Sole traders generally cost less to look after than limited companies. This is because a limited company has extra filing obligations with Companies House. They also have corporation tax returns. Their bookkeeping is more complex too.
Because of these extra legal duties, accountant costs for small business setups running as a Ltd company will always be higher.
If you’re a sole trader with one income stream, your small business accounting fees will sit at the lower end.
2. Turnover and Transaction Volume
The more money moving through your business, the more time it takes to record and reconcile it. More transactions mean a higher small business accountant cost.
Also, if your books are messy, the accountant has to charge you “cleanup fees” to fix them before doing your taxes.
That extra manual labour increases your small business accounting fees considerably.
3. VAT registration
The VAT registration threshold is £90,000. If your taxable turnover exceeds the threshold over the relevant 12-month period, you generally need to register for VAT. VAT-registered businesses are generally required to keep digital VAT records and submit VAT Returns using compatible software under Making Tax Digital for VAT. This adds admin, so it adds cost.
Depending on your circumstances, accountants may also advise on VAT schemes such as the Flat Rate Scheme or Cash Accounting Scheme if these are suitable.
This additional work is reflected in the accountant cost for a small business.
4. Payroll Requirements
Running payroll for even one member of staff means monthly RTI submissions to HMRC, payslips, and pension auto-enrolment duties.
The more employees you have, the more payroll administration is required.
Most firms charge per payslip or a flat monthly add-on.
5. Industry and Complexity
Construction businesses under CIS, e-commerce sellers dealing with multiple platforms, or businesses with foreign income all need extra work.
That pushes the accountant cost for small business owners in these sectors slightly higher. Yes, as compared to a straightforward service business.
6. Bookkeeping Quality
This is something many business owners don’t think about.
If your receipts are missing, bank transactions haven’t been reconciled, or records are incomplete, an accountant will need extra time to organise everything before preparing your accounts.
So good bookkeeping can reduce your accountant cost for a small business.
Hourly Rates vs Monthly Retainers
Some businesses prefer to use an accountant only when a problem arises. If you choose this route, hourly rates in the UK generally start around £40 per hour for a basic bookkeeper. They can rise to £150 or £200 per hour for a fully qualified Chartered Accountant.
For many startups, a fixed accountant cost per month is much safer. You get year-round advice without the fear of the clock ticking every time you ask a question.
What Are The Hidden Costs Accountants Don’t Always Mention Upfront?
This matters a lot. Before you sign up with anyone, ask what’s actually included in the headline price. This is because a low quote isn’t always the full picture.
Things that sometimes get billed separately include:
- Company formation or registering with HMRC
- Amendments to filed tax returns
- Ad hoc HMRC correspondence or enquiries
- Software subscriptions like Xero or QuickBooks
- Switching accountants mid-year (some firms charge a handover fee)
- Extra bookkeeping if your records aren’t kept up to date
None of this is dodgy practice. It’s just worth confirming before you commit. That way, your accountant cost for a small business will not creep up unexpectedly a few months in.
How To Keep Your Small Business Accounting Fees Down?
You can make the work easier and reduce avoidable costs.
- Keep your records tidy throughout the year
- Use cloud accounting software like Xero or QuickBooks; most firms charge less when your data is already digital
- Bundle services into one monthly package rather than paying for each thing separately
- Answer your accountant’s questions promptly; chasing you for information takes time, and time costs money
- Review your package once a year; businesses change, and so should your service
The Bottom Line
There’s no single number that answers “how much does an accountant cost for a small business”, because it genuinely depends on what your business looks like.
What matters more than chasing the cheapest quote is understanding what’s included, checking the fee covers what you actually need, and making sure you’re not paying for services you’ll never use.
Get that right, and an accountant cost for a small business becomes a sensible investment.
How Accotax Can Help
At Accotax, our small business accountants support small businesses across the UK with practical accounting services.
We can assist with bookkeeping, annual accounts, Corporation Tax, Self Assessment, VAT returns, payroll, Making Tax Digital compliance, company formation and ongoing business advice.
If you’d rather spend your time running your business than untangling tax deadlines, get in touch with our team today!
Disclaimer: All the information provided in this article on “How Much Does An Accountant Cost For A Small Business“, including all the texts and graphics, is general in nature. It does not intend to disregard any of the professional advice.
