How to Hire an Accountant: Questions to Ask

Choosing the right accountant can make or break your small business. The wrong one can land you in hot water with HMRC, miss tax-saving opportunities, or simply cost a fortune for little value. This guide doesn’t just give you a list of questions—it explains the why behind each, shows you what to watch out for, and arms you with the knowledge to find an accountant who genuinely fits your business. By the end, you’ll know exactly how to approach the hiring process, what red flags to spot, and how to make a decision that will support your business for years to come.

For UK small business owners, an accountant is far more than someone who files your tax return. The right accountant can save you thousands in tax, keep you on the right side of HMRC, help you secure funding, and free up your time to actually run your business. The wrong one? They can cost you dearly—through missed deadlines, poor advice, or even compliance failures that result in fines or investigations.

Accountancy is a regulated profession in the UK, but not as tightly as many realise. Anyone can technically call themselves an 'accountant', even without formal qualifications. That’s why asking the right questions up front is absolutely essential. You need to separate the true professionals from the unqualified chancers, and ensure you’re getting advice tailored to your business, not a generic, off-the-shelf service.

Your accountant will likely have access to your most sensitive financial data and will represent you to HMRC. Trust and competence are non-negotiable. And with the growing complexity of UK tax legislation, including Making Tax Digital and evolving IR35 rules, it’s more important than ever to find an accountant who is both up to date and proactive in guiding your business.

• UK accountancy is partly regulated—anyone can use the title, but only certain bodies are recognised.
• Mistakes by your accountant can lead to HMRC penalties, but as the business owner, you are ultimately liable.
• Tax rules and compliance in the UK change frequently—your accountant must keep up and adjust your strategy accordingly.
• A good accountant can recommend tax reliefs and credits you might not know exist (e.g. R&D relief, AIA, SEIS, etc.).

Not all accountants are created equal. In the UK, only members of certain professional bodies are truly regulated and required to follow strict codes of conduct. These include ICAEW (Institute of Chartered Accountants in England and Wales), ACCA (Association of Chartered Certified Accountants), ICAS (Institute of Chartered Accountants of Scotland), and CIMA (Chartered Institute of Management Accountants).

Ask which body your prospective accountant belongs to, and check their registration. Each body has an online member search, so you can verify credentials. Membership is not just about status—it means your accountant must have professional indemnity insurance, maintain continuing professional development (CPD), and is subject to disciplinary procedures if things go wrong.

Some accountants are 'chartered' or 'certified' and others are technicians (AAT qualified). For most small businesses, a qualified accountant (ACA, ACCA, CA, CIMA) is appropriate, but a good AAT may suffice for very simple tax returns. Always ask about their experience with businesses of your size and sector.

• Ask: Are you a member of ICAEW, ACCA, CIMA, ICAS, or AAT?
• Check their name and firm on the relevant body’s website.
• Request evidence of professional indemnity insurance.
• Ask about recent CPD activity—are they up to date with current UK tax law?

Most small business owners focus on price or location, but the right questions dig much deeper. You want to uncover not just their qualifications, but their experience, approach, and whether they truly understand your sector. An accountant who mainly serves restaurants may not be the best fit if you run a tech startup, and vice versa.

Here are the essential questions to ask any prospective accountant. Don’t be shy—good accountants expect thorough questioning, and their answers will reveal how seriously they take your business. Pay close attention to how clearly and confidently they explain things, and whether they tailor their answers to your situation.

You should also ask about how they handle communication and deadlines, whether you’ll deal with a partner or junior staff, and what systems they use (especially if you’re already on a digital platform like Xero, QuickBooks, or Sage). The more you know now, the fewer surprises later.

1. 1What professional qualifications and registrations do you hold?
2. 2What experience do you have with businesses in my sector and of my size?
3. 3Who will actually be handling my accounts—will it be you, or a junior?
4. 4How do you keep up with changes in UK tax law and compliance requirements?
5. 5What accounting software do you recommend and support? Can you work with my existing system?
6. 6What is your approach to minimising my tax bill while staying fully compliant?
7. 7How do you charge (fixed fee, hourly, per service) and what is included?
8. 8How do you deal with HMRC queries, investigations, or compliance checks?
9. 9What is your policy on meeting deadlines and how do you ensure nothing is missed?
10. 10Can you provide references from clients similar to me?

Accountancy fees can vary wildly. Some accountants charge as little as £40 per month for basic self-assessment, while a full service for a limited company with payroll and VAT can easily run £1,500-£3,000 per year. The key is to understand exactly what’s included—and what isn’t. Never assume a quoted fee covers everything your business needs.

Most UK accountants now offer fixed-fee packages for small businesses, but some still charge by the hour or for each service (annual accounts, payroll, VAT returns, etc.). Always ask for a full, itemised quote. Clarify whether support for HMRC investigations, Companies House filings, or advice calls are included or extra.

Beware of 'too good to be true' deals. Very cheap fees often mean minimal service, no proactive advice, or overseas outsourcing. On the flip side, expensive doesn’t always mean better. Compare at least three quotes, and remember—paying a bit more for a proactive, competent accountant usually pays for itself in tax savings and peace of mind.

• Ask how and when you’ll be billed—monthly, quarterly, or annually.
• Find out what happens if your business grows and your needs change.
• Check if there are extra charges for phone advice, letters to HMRC, or urgent work.
• Request a written engagement letter outlining all fees and services.

It’s not just about qualifications—it’s about relevant, recent experience. A good accountant for a construction firm may be clueless about tech startups, property investment, or e-commerce VAT. Ask direct questions about their current client base and how many clients they have like you.

Request case studies or anonymised examples of how they’ve helped similar businesses. If you’re in a regulated sector (e.g., legal, medical, charities), make sure they understand your specific compliance needs. For growing businesses, ask about their experience with scaling, R&D tax credits, or business sales.

Chemistry matters too. You need someone you feel comfortable asking 'stupid' questions, who explains things in plain English, and who is responsive when you need help. If you’re moving from a previous accountant, ask how they’ll manage the handover and onboarding process.

• Ask how many clients like you they look after—and request a reference.
• Check if they’ve handled HMRC investigations or compliance checks for similar businesses.
• Find out if they offer proactive tax planning or just 'year-end' services.
• Look for signs they genuinely understand your challenges and ambitions.

UK tax compliance is increasingly digital. Since April 2022, Making Tax Digital (MTD) for VAT is mandatory for most VAT-registered businesses, and MTD for Income Tax will affect many sole traders and landlords from April 2026. You need an accountant who is not just comfortable with digital filing, but can help you set up and use cloud accounting software to meet these requirements.

Ask which platforms they support—Xero, QuickBooks, Sage, FreeAgent, etc.—and whether they are certified partners. Some accountants still insist on spreadsheets, which won’t comply with MTD. Others may outsource digital work overseas, risking data protection issues.

Clarify how they’ll work with your existing systems, how documents and receipts are shared (secure portals? email?), and how you’ll be kept up to date with compliance deadlines. A tech-savvy accountant should also be able to automate tasks, help you track cash flow, and generate real-time reports—saving you hours every month.

• Ask which software platforms they are certified in and recommend for your business.
• Check if they offer training and ongoing support for your team.
• Find out if they can integrate your accounts with other business systems (e.g., e-commerce, payroll).
• Ask how they keep your financial data secure and GDPR-compliant.

Hiring an accountant is not just about picking a name from Google. You need a structured process to ensure you make an informed choice. Here’s a practical, step-by-step approach, grounded in best practice and UK-specific due diligence.

Rushing the decision or simply choosing the cheapest option is a mistake that can haunt you for years. Many small business owners only discover their accountant’s shortcomings when something goes wrong—missed deadlines, HMRC penalties, or poor tax advice that costs far more than any savings on fees.

Beware accountants who avoid questions, are vague about fees, or refuse to put things in writing. Over-promising on tax savings or offering to 'bend the rules' is a major red flag; remember, you are ultimately liable for any non-compliance, not your accountant. Also, be cautious about those who won’t let you speak to current clients, or who lack clear processes for communication and deadlines.

Another common pitfall is failing to clarify who will actually handle your work—many larger firms pass small clients to junior staff with little oversight. Don’t assume a well-known brand guarantees quality service for your business. And finally, make sure your accountant is proactive rather than reactive; a good one will flag issues and opportunities before you have to ask.

• Hiring an unqualified or unregulated accountant.
• Failing to get a written engagement letter detailing services and fees.
• Assuming digital compliance (MTD, GDPR) without checking their systems.
• Choosing solely on price, not experience or fit.
• Overlooking references or ignoring negative online reviews.

If you’re dissatisfied with your current accountant, don’t feel stuck. UK professional standards require your new accountant to manage the handover process, including contacting your old accountant for any necessary information and records. You should not be left in limbo or have to chase things yourself.

Check your existing engagement letter for any notice period or exit fees. Notify your current accountant in writing that you’re moving. Your new accountant will then request 'professional clearance' and all relevant files. HMRC and Companies House agent authorities can easily be transferred online.

Timing is key—ideally, switch just after your year-end or before key deadlines, to avoid confusion. Ensure all outstanding tax returns and filings are up to date, and clarify with your new accountant who will handle any in-progress matters. A good accountant will make this process seamless and stress-free.

• Check for contractual notice or handover fees.
• Inform your current accountant in writing.
• Ensure all your records are up to date before switching.
• Ask your new accountant to confirm when they’re officially appointed as your agent.