A UK small business accountant can help with your annual accounts, Corporation Tax returns, VAT filing, payroll, and personal self-assessments.
Beyond basic bookkeeping, they also provide strategic advice on Making Tax Digital (MTD) and tax efficiency to help your company grow legally.
With that said, in 2026/27, having good small business accountants is more useful than ever!
Services Small Business Accountants Offer In The UK
Let’s go through, service by service, what a small business accountant in the UK actually offers.
1. Bookkeeping and Daily Record Keeping
Bookkeeping means recording every sale, purchase, invoice and expense so your books are accurate and up to date. It is the foundation of everything.
Most small business accountants now do bookkeeping digitally using software like Xero, QuickBooks or FreeAgent.
A good accountant will usually:
- Reconcile your bank transactions monthly or quarterly
- Categorise income and expenses correctly for tax purposes
- Flag anything unusual before it becomes a problem
- Keep digital records that satisfy HMRC’s requirements
If your bookkeeping is messy, everything downstream (VAT, tax returns, accounts) gets harder and often more expensive too.
2. VAT Registration and VAT Returns
The UK VAT registration threshold sits at £90,000. Once your rolling 12-month taxable turnover hits that figure, registration is mandatory.
An accountant will typically help with:
- Registering your business for VAT with HMRC
- Choosing the right VAT scheme (standard, flat rate, or cash accounting)
- Preparing and filing VAT returns through MTD compatible software
- Advising on VAT for tricky areas like mixed rate businesses or international sales
An accountant also helps you choose which VAT scheme to use. This includes standard, flat rate, or cash. They also help you file returns under MTD rules.
A small business accountant double-checks exactly what VAT you can legally reclaim on your business purchases. This helps you keep your cash flow healthy and prevents expensive overpayments.
3. Payroll Services
As soon as you hire staff, even just one person, you inherit a mountain of payroll paperwork and legal responsibilities. This includes National Insurance, pension auto-enrolment, statutory pay, and PAYE reporting. All of these need to be handled correctly and on time.
Accountants offering payroll services will usually manage:
- Monthly or weekly payroll runs
- Real Time Information (RTI) submissions to HMRC
- Payslips and P60s/P45s
- Auto-enrolment pension contributions
- Statutory sick pay, maternity pay, and similar
If you get payroll wrong, it can lead to penalties and unhappy employees. This is one area a lot of small business owners choose to outsource entirely rather than risk getting it wrong.
Some firms offer payroll as a standalone service. Others bundle it with bookkeeping.
4. Self Assessment Tax Returns
You may need to file a Self Assessment tax return if you are a sole trader, a partner in a partnership, or a company director with income or circumstances that require reporting.
A small business accountant will:
- Calculate your income tax and Class 4 National Insurance liability
- Claim all allowable expenses and reliefs you’re entitled to
- File your return before the deadline
- Advise on payments on account, so you’re not caught out by a surprise bill
They ensure that you are utilising all legal personal allowances. This may include checking eligibility for Marriage Allowance and relevant pension tax reliefs, where applicable.
They submit the formal main SA100 form alongside all necessary supplementary pages online well ahead of the strict 31st January deadline.
Best of all, they calculate your mandatory “payments on account” advance tax instalments accurately.
5. Annual Accounts and Year-End Filing
Every limited company generally has to prepare annual accounts and file the required accounts with Companies House, while its Corporation Tax return is submitted to HMRC. Sole traders don’t have the same statutory filing requirement, but accurate year-end figures still matter for tax purposes.
Small business accountants prepare accounts using the applicable accounting framework and relevant UK reporting requirements.
An accountant will typically prepare:
- Profit and loss statements
- Balance sheets
- Notes to the accounts
- Statutory accounts formatted correctly for Companies House
They can help ensure the required filings are prepared and submitted by the applicable deadlines. Companies House accounts are usually due 9 months after your company’s year end. Corporation Tax is due 9 months and 1 day after.
6. Corporation Tax
If you operate through a limited company, paying Corporation Tax is one of your main responsibilities. The rates for 2026/27 remain unchanged from previous years:
| Profit level | Rate |
| Up to £50,000 | 19% (small profits rate) |
| £50,000 to £250,000 | Marginal relief applies (effective rate up to 26.5%) |
| Over £250,000 | 25% (main rate) |
A small business accountant will:
- Calculate your Corporation Tax liability,
- Apply any marginal relief you’re due, and
- File your Company Tax Return (CT600) with HMRC.
They make sure that you pay exactly what you owe. They also ensure that you are taking advantage of every legal tax relief that is available to your industry.
7. Company Formation and Companies House Filings
Small business accountants in the UK routinely help businesses with company formation and ongoing Companies House filings.
They can help you with:
- Registering the company with Companies House
- Advising on share structure and director appointments
- Helping you understand business bank account requirements
- Filing the confirmation statement each year
Once your company is up and running, they may also assist with certain Companies House filings and company administration.
If your registered office address changes or your company details need updating, your accountant can usually deal with these filings on your behalf.
8. HMRC Enquiries and Dispute Handling
HMRC may contact businesses for many reasons. Sometimes it is simply a routine check. Other times they may have questions related to the figures that have been submitted.
If you have an accountant, you do not have to deal with these situations on your own.
If HMRC opens an enquiry, your accountant can:
- Communicate directly with HMRC on your behalf,
- Explain the information being requested, and
- Prepare any supporting documents needed.
And if there’s a genuine mistake on your part, your accountant can advise on the best way to correct it. This allows you to minimise any penalties where possible.
So having a small business accountant means you will not have to worry about every letter that arrives because you will have a professional helping you through the process.
9. Making Tax Digital (MTD) Support
From 6 April 2026, Making Tax Digital for Income Tax applies to eligible sole traders and landlords with qualifying income above £50,000. It means quarterly digital updates to HMRC plus a final declaration.
Accountants provide hands-on MTD support to help you move away from old-fashioned spreadsheets and paper logs.
An accountant will:
- Check whether you’re in scope for MTD, and from which date
- Get you set up on compatible software like Xero, QuickBooks or FreeAgent
- Move your existing records across cleanly, without losing anything
- Handle your quarterly submissions to HMRC on time, every time
- Prepare and file your final declaration at year end
- Keep you clear of penalties as the rules tighten
Even if you are under the threshold now, switching to digital bookkeeping early makes the transition easier. Your accountant sets up the digital links required by HMRC and handles your regular digital submissions. This ensures that your business stays perfectly aligned with the latest MTD software rules.
10. Tax Planning and Advice
This is something that separates a decent accountant from a genuinely good one. Anyone can file a return. But only a few accountants can genuinely help you plan ahead so that you never have to overpay tax.
Small business accountants review your finances throughout the year. Then they suggest legal ways to improve tax efficiency before you make any important decisions.
They can provide you with advice on:
- Salary versus dividend splits for company directors
- Pension contributions to reduce your tax bill
- Claiming all allowable business expenses
- Structuring your business in the most tax-efficient way
- Timing of asset purchases to make the most of capital allowances
Small business accountants will also check that you are claiming every allowable business expense you are entitled to.
How Much Does a Small Business Accountant Cost in the UK?
Pricing varies a fair bit depending on your business type, turnover, and how much you need done. Here’s a rough guide.
| Business type | Typical monthly cost |
| Sole trader (basic bookkeeping and self-assessment) | £30 to £60 |
| Sole trader with VAT registration | £50 to £90 |
| Small limited company (accounts, CT, confirmation statement) | £80 to £150 |
| Limited company with payroll and VAT | £120 to £250+ |
These are estimated figures. Some firms charge fixed monthly fees, others charge per service or per hour. Always ask for a clear breakdown before signing up. This way you will not have any surprises later.
How to Choose the Right Small Business Accountant
A few things actually worth checking before you commit to anyone:
- Are they qualified? Look for ACCA, ACA or AAT qualifications, or a firm regulated by one of these bodies.
- Do they specialise in your sector or business size? An accountant used to large corporations might not be the best fit for a small trader.
- Do they use cloud accounting software? If they’re still working from spreadsheets in 2026, that’s a red flag given where MTD is heading.
- Are they proactive about Making Tax Digital?
- What’s actually included in the price? Get this in writing.
What Is The Difference Between a Bookkeeper and an Accountant?
A bookkeeper handles daily financial records, tracking invoices, receipts, and bank reconciliations.
An accountant takes that financial data, analyses it, prepares statutory financial statements, lodges official tax returns, and provides strategic business advice.
Many small business accountancy practices offer both bookkeeping and accounting as a combined package.
The Bottom Line
So, what services do small business accountants offer in the UK? Pretty much everything from the essential stuff (bookkeeping, VAT, payroll) through to the advice that actually saves you money.
With Making Tax Digital changing how a lot of sole traders and landlords report income from April 2026, this is genuinely not the year to muddle through on your own or rely on outdated spreadsheets.
The right accountant will keep you compliant, save you time, and reduce stress.
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 “What Services Do Small Business Accountants Offer In The UK?“, including all the texts and graphics, is general in nature. It does not intend to disregard any of the professional advice.
