Why the choice matters more than you might think

For most small businesses, an accountant is not simply someone who files a tax return once a year. They are often the only professional adviser a founder speaks to regularly, and the difference between a good and a mediocre one can run into thousands of pounds over time. A well-matched accountant will spot allowances you have missed, warn you about a dividend or VAT decision before you make it, and answer a nervous email in a way that leaves you calmer rather than more confused.

Poorly matched, the relationship becomes a yearly scramble: you send a shoebox of records, receive a bill you did not expect, and never quite get an answer to the question you actually asked. So it is worth spending real time on the decision, not simply choosing the cheapest quote or the firm your friend uses.

Look for genuine sector experience

Accountancy is not a single uniform service. The rules that matter to a construction contractor differ enormously from those that shape a software consultancy, an online retailer or a café. Ask directly how many clients they have in your sector, and be wary of a vague answer.

Specific knowledge shows up in specific ways. A good accountant for a trade business will talk about the Construction Industry Scheme, CIS deductions and whether you should be a limited company or a sole trader. One who works with e-commerce clients will understand stock valuation, marketplace fees and VAT on cross-border sales. Someone who looks after consultants will raise IR35 and the off-payroll working rules before you do.

Experience also means knowing your seasonality. If January is quiet and August is manic, an adviser who understands that will help you plan cash flow rather than simply report what happened.

Be clear about fees from the very first conversation

Fee confusion is the most common reason small businesses switch accountants. Before you appoint anyone, ask for a written breakdown of what is included and — just as importantly — what is not.

• Core work: annual accounts, corporation tax return, and a Company Tax Return or self-assessment filing.
• Routine compliance: VAT returns, payroll and Real Time Information submissions, Confirmation Statement filings at Companies House.
• Extras charged separately: bookkeeping, management accounts, registering for VAT, responding to HMRC enquiries, advisory calls beyond a set number of hours.
• Software costs: whether the accounting subscription is included or billed to you directly.

A fixed monthly retainer suits most small companies because it makes budgeting straightforward. Hourly billing is fine for one-off projects but can make you reluctant to pick up the phone, which defeats the point of having an adviser. Whatever the model, get the letter of engagement in writing and check the notice period for leaving.

It is also reasonable to ask whether the firm is supervised for anti-money laundering purposes and holds professional indemnity insurance — both are signs of a properly regulated practice.

Check their cloud software knowledge

Making Tax Digital has moved almost every business onto digital record-keeping, and HMRC's requirements continue to expand. Your accountant should be comfortable working in cloud accounting software rather than asking you to print reports and post them.

Ask which platforms they support, whether they can train you on the basics, and how they prefer to receive records. A firm that can connect directly to your ledgers will usually close your year-end accounts faster and with fewer queries. If you already use a particular package, check they work with it rather than assuming you will have to migrate.

Good practice here also means sensible handovers: bank feeds reconciled monthly, receipts captured digitally, and a shared understanding of who is responsible for what between you.

Test how responsive they really are

You can learn a lot before you sign. Send an email with a specific question and see how long a reply takes, and whether the answer actually addresses what you asked. Ask who will handle your work day to day — the partner you meet at the pitch, or a junior you have never spoken to.

Useful questions include:

• What is your typical response time during the working week?
• Who is my main point of contact, and who covers when they are away?
• How do you keep clients informed about tax changes that affect them?
• Do you offer a fixed-fee review meeting each year, or is that charged extra?

Responsiveness matters most when something goes wrong: a letter from HMRC, a late payment, a sudden decision about taking on a partner. Being able to reach someone who knows your file is worth more than a slick website.

Making the appointment and reviewing it later

Before you commit, request a short introductory meeting, ideally free of charge. Use it to describe your business, your plans for the next two or three years, and your worries. A good accountant will ask questions about turnover, margins, how you pay yourself, and whether you have considered pensions or capital allowances.

Once appointed, give the relationship a fair trial for a full accounting cycle, then review it. Are deadlines met without chasing? Do the numbers arrive with an explanation rather than just a bill? Do you feel able to ask a basic question without being made to feel foolish?

If the answer is no, switching is simpler than most people fear. Your new accountant can request the records directly from the old one under professional clearance rules, and you are free to move at any time. The right adviser should feel like a business partner who happens to know tax — not a distant compliance cost.