Do I Need an Accountant for My Small Business in the UK?

If you run a barbershop, a nail bar, a grooming van or a one-room massage practice, you have probably asked yourself: do I need an accountant for my small business in the UK? There is no law that says you must have one. Plenty of sole traders file their own tax return every January and get it right. But many owners find that a good accountant pays for themselves several times over, not because they do something magic, but because they stop small, expensive mistakes and give you back hours you would rather spend with clients.

This guide walks through what an accountant actually does for a small service business, the UK rules they help you with, how to tell whether you are ready for one, and how to choose someone you can trust.

Do I need an accountant for my small business in the UK, or can I do it myself?

The honest answer is: it depends on how simple your business is and how much you enjoy paperwork.

You can probably manage on your own if:

• You are a sole trader with one income stream and no staff.
• Your takings are well below the VAT registration threshold.
• You keep tidy records through the year, not in a panic in January.
• You are comfortable with HMRC's online services and the Self Assessment return.

It is usually worth getting help if:

• You are thinking about becoming a limited company, or already are one.
• Your turnover is growing towards the VAT threshold.
• You employ people, or have people renting a chair or a room from you.
• You now fall under Making Tax Digital for Income Tax and need to send quarterly updates.
• You have more than one business, or a business plus rental income.
• You simply keep putting the books off, and the stress is costing you sleep.

A useful test is to price your own time. If doing the books takes you two full days a quarter, what would those days be worth if you spent them cutting hair, taking bookings or training clients? Many owners discover the fee is smaller than the work they lose by doing it themselves.

Getting the structure right from day one

The first big decision for most small shops is whether to trade as a sole trader or set up a limited company. It is also one of the easiest places to go wrong, because the right answer depends on your profits, your plans and your appetite for admin.

Sole trader

As a sole trader, you and the business are legally the same thing. You register with HMRC for Self Assessment, keep records of your income and expenses, and file a tax return each year. You pay Income Tax and National Insurance on your profits. It is simple and cheap to run, which is why most barbers, nail techs, mobile therapists and groomers start this way. The downside is that you are personally responsible for the business's debts.

Limited company

A limited company is a separate legal entity, registered at Companies House. It pays Corporation Tax on its profits, files annual accounts with Companies House and a Company Tax Return with HMRC, and has to keep its details up to date. As a director, you usually pay yourself through a mix of salary and dividends, and you may still need to file your own Self Assessment return. Your personal liability is normally limited, and the structure can be more tax-efficient once profits reach a certain level. But there is more paperwork, your company's accounts are on public record, and taking money out of the business has rules of its own.

An accountant can run the numbers for both options using your real figures and tell you whether switching makes sense now, later or never. That conversation alone can save you from a costly move made for the wrong reasons.

Partnerships and going into business with a friend

If you are opening a salon or studio with someone else, an accountant can explain the difference between a partnership and a company with two directors, and help you agree in writing who owns what and how profits are split.

Keeping HMRC happy: the deadlines and rules that matter

Most small business owners do not get into trouble with HMRC because they are dishonest. They get into trouble because they miss a deadline, misunderstand a rule or keep poor records. An accountant's first job is to make sure that does not happen.

Self Assessment

The UK tax year runs from 6 April to 5 April. If you are a sole trader, your online tax return is due by 31 January after the tax year ends, and that is also when any tax owed is usually due. Many people also have to make payments on account towards the next year's bill, which can be an unpleasant surprise in your second year of trading. A good accountant warns you about this months ahead, so the money is put aside rather than found at the last minute. Late returns and late payments attract penalties and interest, which are entirely avoidable.

VAT

Once your VAT-taxable turnover goes over the registration threshold in any rolling 12-month period, you must register for VAT. The threshold is set by the government and changes from time to time, so check the current figure on GOV.UK rather than relying on memory. Because the test is a rolling 12 months, not your tax year, it is easy to cross it without noticing during a busy run of weddings, proms or Christmas bookings. Registering late can mean owing VAT you never charged your clients.

An accountant will watch your turnover, tell you when you are getting close, and help you decide on pricing. For a salon whose clients are mostly the public, adding VAT is a real price rise, so planning matters. They can also explain the schemes available to smaller businesses and whether registering voluntarily could ever make sense for you.

Making Tax Digital

Making Tax Digital (MTD) is HMRC's move to digital record-keeping. It already applies to VAT-registered businesses, which must keep digital records and file VAT returns through compatible software. MTD for Income Tax is being phased in from April 2026, starting with sole traders and landlords on higher incomes, with the income level coming down in later years. If you are in scope, you need to keep digital records and send quarterly updates to HMRC through compatible software, then finalise the year.

An accountant can tell you whether and when it applies to you, recommend software that suits a small shop, and set it up so the quarterly updates take minutes rather than a weekend.

Paying less tax, legally

Nobody wants to pay more tax than they owe. A good accountant will never suggest anything shady, but they will make sure you claim what you are entitled to.

Common allowable expenses for service businesses include:

• Products and consumables: colour, polish, oils, shampoo, wax, dog shampoo, gloves and towels.
• Equipment such as clippers, chairs, treatment couches, dryers and grooming tables.
• Rent, business rates, utilities and cleaning for your premises.
• Insurance, including public liability and treatment cover.
• Training courses that keep your existing skills up to date.
• Your website, booking system, card reader fees and marketing costs.
• Business mileage or van costs if you work mobile.
• A share of your phone and home costs if you run the business from home.

There are rules about what counts and how to work out the business share of mixed costs. An accountant applies them correctly, which matters if HMRC ever asks questions. They can also advise on the timing of big purchases, on capital allowances for equipment, and, if you have a company, on the most sensible way to pay yourself.

Staff, chair renters and payroll

As soon as you take on help, the rules multiply.

If you employ someone, you need to run payroll through PAYE, report to HMRC each time you pay them, and handle things like holiday pay and statutory sick pay. You will also have workplace pension duties under auto-enrolment. Payroll mistakes are stressful for you and upsetting for your staff, and they are one of the most common reasons small salons and barbershops bring in an accountant or a payroll bureau.

Chair renting and room renting need particular care. Many salons and clinics have stylists, barbers or therapists who rent a chair or room and are treated as self-employed. Whether someone really is self-employed depends on how the arrangement works in practice: who sets their hours, who sets prices, whose clients they are, whether they can send someone else in their place. HMRC looks at the reality, not the label. An accountant can review your arrangements and help you avoid a situation where someone you treated as self-employed is later found to have been an employee.

Understanding your numbers, not just filing them

The best accountants do more than keep you legal. They help you understand whether your business is actually making money, and why.

A good accountant can help you:

1. Work out your real profit on each service, after products, time and overheads.
2. Spot services that are popular but barely profitable, so you can reprice or rethink them.
3. Plan cash flow around quiet months like January and the August holidays.
4. Set aside the right amount for tax every month so the bill never comes as a shock.
5. Prepare figures for a bank, a landlord or an investor when you want to grow.

If you have never looked closely at your pricing, it is worth reading our guide to designing a service menu that sells, and pairing your accountant's figures with the numbers every salon owner should track. An accountant can tell you what your margins are. You then decide what to do about them. If costs are the problem, our guide on how to cut costs and grow profit is a good next step.

How to choose the right accountant

"Accountant" is not a protected title in the UK, so anyone can use it. That makes choosing carefully important.

Look for someone who:

• Is a member of a recognised professional body and can tell you which one.
• Is supervised for anti-money laundering purposes, as accountancy firms must be.
• Holds professional indemnity insurance.
• Already works with sole traders and small service businesses, ideally in hair, beauty, wellness or similar trades.
• Uses MTD-compatible software and can help you set it up.
• Explains things in plain English and answers your emails within a reasonable time.

Ask for an engagement letter that sets out exactly what they will do and what it costs. Many small-business accountants work on a fixed monthly fee, which makes budgeting easier than paying by the hour. Be clear about what is included: annual accounts, the tax return, VAT returns, payroll, quarterly MTD updates, and whether you can ring them with a quick question without being charged.

Finally, ask how they want your records. The easier the hand-over, the lower the bill tends to be.

What you still need to do yourself

Hiring an accountant does not mean handing over your business. You stay responsible for your tax affairs, even if someone else files the return. Your part is to keep good records as you go, save receipts, keep business and personal spending in separate bank accounts, and send information on time.

You also stay in charge of the things only you can do: looking after clients, bringing them back and growing your takings. That is where your time is best spent. If you use Repeatfy to remind clients to come back, each message carries a unique code that is recorded when it is redeemed at the counter, so you can see which return visits your marketing actually brought in. That is a useful figure to share when you sit down with your accountant to plan the year ahead.

Frequently asked questions

Is it a legal requirement to have an accountant in the UK?

No. Sole traders and limited companies can legally file their own returns and accounts with HMRC and Companies House. Many owners still choose an accountant because the rules around VAT, payroll, limited companies and Making Tax Digital are easy to get wrong, and mistakes lead to penalties.

When should a sole trader get an accountant?

Common trigger points are when your turnover is approaching the VAT threshold, when you take on staff or chair renters, when you are thinking about becoming a limited company, or when Making Tax Digital for Income Tax applies to you. If the books are causing you stress or eating into time with clients, that is a good reason too.

What is the difference between a bookkeeper and an accountant?

A bookkeeper records your day-to-day transactions and keeps your books tidy. An accountant uses those records to prepare accounts and tax returns, gives tax advice and helps with planning. Many small businesses use a bookkeeper or an app through the year and an accountant at year end.

Do I need to tell HMRC that I have an accountant?

You can authorise an accountant to act as your agent with HMRC, which lets them deal with HMRC on your behalf and see the information they need. Your accountant will normally set this up with you. You remain legally responsible for your tax, even when they file for you.

Can an accountant help me decide whether to become a limited company?

Yes, and it is one of the most valuable things they do. They can compare what you would pay as a sole trader and as a company using your real profits, explain the extra admin and responsibilities, and help you choose the right time to switch, if switching makes sense at all.