Switching accountants is one of those things that business owners think about for months (sometimes years) before actually doing anything about it. You know the relationship isn’t working. You know you’re not getting the advice you need. But the thought of changing feels disruptive, awkward, and complicated.
Here’s the truth: switching accountants is far less painful than most people expect. The process is well-established, your new accountant will handle most of the heavy lifting, and the legal framework protects you throughout. The hardest part is usually making the decision.
This guide covers the signs that it’s time to move, what to look for in a new accountant, how the handover process works, and how to avoid common pitfalls.
Signs it’s time to switch
Not every frustration with your accountant justifies a change. But if you’re recognising several of these patterns, it’s worth having the conversation.
They’re reactive, not proactive. You only hear from your accountant when they need something from you. They never call to suggest a tax planning opportunity, flag a risk, or share sector-specific advice. The entire relationship is compliance-driven.
They’re hard to reach. Emails go unanswered for days. Phone calls aren’t returned. When you do get through, you’re speaking to someone different every time who doesn’t know your business.
No advisory input. Your accountant files your returns and prepares your accounts, but that’s it. There’s no conversation about your business goals, your growth plans, or how to structure things more efficiently.
Fees are unclear or creeping up. You’re never quite sure what you’ll be charged, and the bills seem to go up each year without any corresponding increase in service quality.
They’re behind the times. Still relying on paper files, desktop software, and annual meetings. No cloud accounting, no real-time reporting, no digital tools.
You’ve outgrown them. Your business has grown, added complexity, or moved into new areas, and your accountant hasn’t kept pace. What worked when you were a sole trader doesn’t work now you’re a multi-entity group.
Mistakes and missed deadlines. This is the most clear-cut signal. If your accountant is submitting things late or making errors in your returns, the relationship needs to change.
A word of caution: Before switching, it’s worth having an honest conversation with your current accountant about what’s not working. Sometimes the issues can be resolved. But if you’ve raised concerns and nothing changes, that tells you everything you need to know.
What to look for in a new accountant
Finding the right accountant isn’t just about finding someone who can file your returns on time (though that’s a minimum). Here’s what separates a good accountant from a great one.
Sector knowledge. An accountant who understands your industry will spot opportunities and risks that a generalist won’t. If you’re in construction, they should know about CIS. If you’re in hospitality, they should know about tronc schemes. If you’re a charity, they should know SORP.
Proactive advice. The best accountants don’t wait to be asked. They flag tax planning opportunities, warn you about upcoming changes, and bring ideas to the table. You should feel like you have a financial partner, not just a compliance provider.
Fixed fees. Surprises on your accountancy bill are never welcome. A good accountant will agree a fixed fee upfront, based on a clear scope of work. If extra work is needed, they’ll discuss it with you before incurring the cost.
Technology. Your accountant should be using modern cloud-based tools and encouraging you to do the same. Real-time data, automated bank feeds, and digital document sharing aren’t luxuries; they’re the standard.
Team stability. Ask who will actually be doing your work. A big name on the door means nothing if your day-to-day contact is a revolving door of junior staff. You want to know the people handling your accounts.
Responsiveness. How quickly do they reply to enquiries? Do they have a clear process for handling urgent questions? A good test is how responsive they are during the prospecting stage. If they’re slow to respond before you’re a client, it won’t improve after.
Here’s a practical checklist for when you’re meeting prospective accountants:
| Question to ask | Why it matters |
|---|---|
| How many clients in my sector do you work with? | Sector expertise leads to better advice |
| Who will be my main point of contact? | You want continuity and a named person |
| How do you charge, and is it fixed? | Avoids billing surprises |
| What software do you use and recommend? | Shows their tech capability |
| How do you handle year-end planning? | Tests whether they’re proactive |
| What does your onboarding process look like? | A structured onboarding signals professionalism |
| Can you give me references from similar clients? | Social proof and confidence |
| How quickly do you typically respond to queries? | Sets expectations on communication |
| What’s included in your standard service? | Clarifies scope so nothing falls through the cracks |
The handover process
The handover from one accountant to another follows a well-established professional protocol. Here’s how it works in practice.
Step 1: Tell your current accountant
You’ll need to notify your current accountant that you’re moving. This can be a letter, an email, or a phone call. You don’t need to give a lengthy explanation; a simple, professional notice is sufficient. Check your engagement letter for any notice period or termination terms.
Step 2: Your new accountant sends a professional clearance letter
This is a standard letter sent from your new accountant to your old one. It asks two things: are there any professional reasons why the new accountant shouldn’t take you on (for example, unpaid fees or ongoing disputes), and will the old accountant provide all necessary information to facilitate the handover?
Your old accountant is professionally obliged to respond to this letter. They can’t simply ignore it.
Step 3: Your old accountant provides records and information
Your previous accountant must hand over your books and records. This includes your accounting records, tax returns, VAT returns, payroll records, and any other documents that belong to you.
There’s an important distinction here:
- Your records (books, returns, source documents): these belong to you and must be returned.
- Working papers (the accountant’s own analysis, notes, and internal files): these belong to the accountant and they’re not obliged to hand them over.
In practice, most accountants hand over everything without issue. Occasionally, an outgoing accountant will withhold records until outstanding fees are paid. While they can hold a lien over your documents for unpaid fees, they cannot hold your records indefinitely or use them as leverage.
Know your rights: Under ICAEW, ACCA, and other professional body guidelines, an accountant who holds your records over unpaid fees must still provide access to documents needed to meet statutory deadlines (like tax return filings). If you’re being unreasonably obstructed, you can complain to the accountant’s professional body.
Step 4: Timeline
The typical handover takes four to six weeks from the point your new accountant sends the clearance letter. It can be faster if your old accountant is cooperative and there are no outstanding fees or issues.
Step 5: Your new accountant gets up to speed
A good accountant will conduct a thorough onboarding: reviewing your historical accounts, understanding your business, identifying any issues in your current setup, and establishing the new working relationship. This is where the quality of your new accountant really shows.
When to switch: timing matters
The best time to switch accountants is shortly after your financial year end and once your annual accounts and tax returns for that year have been filed. This creates a clean break: your old accountant completes the work they’ve started, and your new accountant picks up from the beginning of a fresh accounting period.
Switching mid-year is possible, but it’s messier. Your new accountant will need to pick up part-completed work, which can lead to duplicated effort and higher transition costs.
If your year end is approaching and you know you want to switch, you have two options:
- Let your current accountant complete the year end, then switch. This is usually the cleanest approach.
- Switch now and let your new accountant handle the year end. This is appropriate if you’ve lost confidence in your current accountant’s ability to do the work properly.
The NI angle: choosing an accountant in Northern Ireland
Northern Ireland’s business community is relatively close-knit, and that shapes how accountant-client relationships work here.
Relationships matter. NI is a small market. Word of mouth carries real weight, and personal recommendations are often the starting point when looking for a new accountant. Ask other business owners in your network who they use and, more importantly, why they’re happy.
Big 4 vs local firms. Belfast has offices of all the major firms (Deloitte, PwC, EY, KPMG) alongside strong mid-tier and local practices. Bigger doesn’t always mean better. For many NI SMEs, a local firm with deep sector knowledge and a personal relationship will deliver more value than a big brand with a generic service.
What “local” really means. In NI, “local” means your accountant understands the NI business environment. They know about Invest NI grants, the NI rate of corporation tax (when it applies), cross-border VAT issues with the Republic, and the specific regulatory landscape. An accountant based in Manchester might be perfectly competent, but they won’t have the same instinctive understanding of the NI market.
Cross-border considerations. If your business has any dealings with the Republic of Ireland, whether that’s cross-border sales, employees in both jurisdictions, or property, you need an accountant who understands both tax systems. Not all firms offer this. It’s worth asking specifically.
The NI business community is supportive. Don’t be afraid to switch because you’re worried about offending your current accountant. Professional accountants understand that clients move. If the relationship isn’t working, a clean, professional transition is respected by everyone involved.
Red flags in a new accountant
While you’re evaluating your options, watch out for these warning signs:
No engagement letter. A professional accountant will always issue a formal engagement letter before starting work. It sets out the scope of services, fees, responsibilities, and terms. If someone starts working without one, that’s a serious red flag.
Unclear fees. “We’ll see how it goes” is not a fee arrangement. Insist on a clear, written fee quote before you commit.
No onboarding process. If your new accountant’s approach to bringing you on board is “send us everything and we’ll sort it out,” that suggests a lack of structure. A good onboarding process includes an initial meeting, a review of your setup, a clear timeline, and assigned points of contact.
Promises that sound too good. If someone guarantees they’ll halve your tax bill or promises outcomes that sound unrealistic, be cautious. Good tax planning is about working within the rules to optimise your position, not about aggressive schemes.
They badmouth your old accountant. A professional accountant won’t criticise your previous advisor. They’ll review the work objectively and flag anything that needs attention, but they won’t do it in a way that’s designed to make the old firm look bad.
Making the switch: a practical checklist
Here’s a quick summary of the steps to make your switch as smooth as possible:
- Decide you’re ready to move (and ideally, identify the right time relative to your year end)
- Research and meet two or three prospective accountants
- Choose your new accountant and agree terms
- Notify your current accountant in writing
- Your new accountant sends the professional clearance letter
- Settle any outstanding fees with your old accountant
- Ensure all your records are transferred
- Complete the onboarding process with your new accountant
- Update your agent authorisations with HMRC and Companies House
The whole process typically takes four to six weeks from start to finish. By the end, you should have a new accountant who knows your business, a clear plan for the year ahead, and the confidence that your financial affairs are in good hands.
How Arro can help
We make switching painless. Our onboarding process is structured, our fees are fixed and agreed upfront, and we handle the entire professional clearance and handover process for you. If you’re thinking about making a change, a no-obligation conversation with our team is a good place to start.