Changing accountants can feel awkward, particularly if your current firm has supported you since launch. But knowing how to switch accountants smoothly can protect your deadlines, keep your records in order and give you the level of support your business now needs. It is a normal professional decision, and when handled properly, it should not create disruption for you, your team or HMRC.

For many business owners, the decision comes after a gradual build-up of frustration: calls are not returned, deadlines feel unclear, fees are difficult to understand or the advice is limited to filing last year’s figures. Sometimes the issue is simply that your business has grown and needs have changed. Whatever the reason, a planned handover makes the process far more straightforward than it may first appear.

Know why you are changing accountants

Before appointing someone new, be clear about what is missing from your current arrangement. This will help you choose an accountant who is better suited to your circumstances rather than repeating the same experience.

You may need more regular management information, help with cloud accounting, reliable payroll support or clearer tax planning. A contractor may want advice on company expenses and dividends, while a growing limited company may need stronger bookkeeping processes and better visibility over cash flow. For self-employed professionals, responsive support around Self Assessment and allowable expenses can make a significant difference.

The right accountant will take time to understand these priorities. Compliance matters, but it should not be the only conversation. Ask how they communicate with clients, who will handle your work and whether they will explain recommendations in plain English. A lower monthly fee is not always better value if you are left chasing answers or making important decisions without current financial information.

Choose your new accountant before giving notice

It is usually best to appoint your new accountant first. They can guide the transition, identify upcoming deadlines and contact your former accountant through the appropriate professional process.

During your initial conversation, give an honest overview of your business. Explain your legal structure, whether you employ staff, the accounting software you use, your VAT position and any deadlines approaching in the next few months. Also mention any areas that are causing concern, such as overdue bookkeeping, an HMRC enquiry or uncertainty over tax liabilities.

This allows the new firm to assess the work properly and provide a clear proposal. It also gives you an opportunity to understand what is included. For example, check whether the fee covers annual accounts, Corporation Tax, payroll, VAT returns, personal tax returns, bookkeeping support and proactive advice, or whether some services are charged separately.

A good accountant should be transparent about fees, timescales and responsibilities from the start. They should not promise that every issue can be resolved immediately, especially where records are incomplete, but they should explain the practical next steps.

Review your current agreement and timing

Look at your existing engagement letter or terms of business before ending the relationship. It may set out a notice period, final fees, payment terms and arrangements for releasing records. In many cases, the handover is routine, but understanding your obligations avoids unnecessary disagreement.

Timing matters too. Switching just before a VAT deadline, payroll run or Companies House filing can add pressure if neither accountant has a full picture. That does not mean you must wait until your year end. If the service is affecting compliance or causing real stress, changing sooner may be sensible. It simply means the transition needs a careful plan.

Tell your prospective accountant about dates for VAT returns, payroll, annual accounts, Corporation Tax, Confirmation Statements and Self Assessment. They can then agree who is responsible for each item during the changeover. Never assume a return has been filed without checking.

Let the professional handover do its job

Once you have formally appointed your new accountant, they will normally send a professional clearance letter to the previous firm. This asks whether there are any professional reasons why they should not accept the appointment and requests the information needed to take over your affairs.

Your previous accountant may provide details such as:

  • year-end accounts and tax computations
  • bookkeeping records and working papers
  • VAT, payroll and PAYE information
  • correspondence with HMRC and Companies House
  • details of deadlines, liabilities and ongoing matters

They may also supply access information or arrange the transfer of accounting software records. Your authority is required before information can be shared, and the new accountant may ask you to sign an agent authorisation so they can deal with HMRC on your behalf.

Keep the tone polite and factual, even if you are unhappy with the previous service. You do not need to justify your decision at length. A short written notice confirming that you are appointing another firm, together with a request to cooperate with the handover, is normally enough.

Make sure you retain access to your own records

Your accountant holds valuable information, but you should retain access to your business records at all times. This is especially relevant where you use cloud accounting software, payroll platforms, shared document storage or a business email address for financial correspondence.

Ask for copies of key reports and ensure the account ownership and user permissions are correct. Depending on the software and subscription arrangement, the new accountant may be able to take over as adviser while you keep the same file. In other cases, you may need to transfer the subscription or create a new one. It depends on the provider, the account owner and how the system was originally set up.

Keep a secure copy of recent accounts, tax returns, VAT returns, payroll reports, bank statements, invoices and important HMRC correspondence. These records are useful during the handover and provide reassurance if questions arise later.

Do not share passwords by email where it can be avoided. Use secure access invitations and update permissions once the transfer is complete. This is not about mistrust. It is sensible financial housekeeping.

Confirm responsibility for the next deadlines

The greatest risk in any change of accountant is not the transfer itself. It is an unclear assumption about who is doing what. Put the immediate priorities in writing with your new adviser.

If a payroll run is due next week, confirm who will process it. If a VAT return is ready but not submitted, establish who will review and file it. If your accounts are nearing completion with the previous accountant, it may be more efficient for them to finish the work before the new firm takes over. There is no single correct approach. The best option depends on the quality of the records, the stage of the work and the time available.

It is also worth checking your HMRC online account and Companies House details once the new accountant is in place. Make sure agent authorisations have been accepted and that you can still see relevant filing dates and notices. Your accountant can manage much of the administration, but legal responsibility for meeting deadlines remains with the business owner or director.

Use the change as a chance to improve your financial routine

A new relationship is an opportunity to reset the way finance is managed in your business. Rather than only handing over records at year end, agree a practical rhythm for bookkeeping, reporting and review meetings.

For some businesses, monthly management accounts and regular cash-flow discussions are valuable. For others, quarterly contact and well-organised cloud bookkeeping will be enough. The right level of support depends on your turnover, team size, funding plans and confidence with the numbers.

Be open about how you prefer to communicate. If you want a quick call when a tax issue arises, say so. If you need explanations without technical language, that should be part of the service, not an extra favour. A dependable accountant should help you understand what the figures mean and what action may be needed.

At Coombs Chartered Accountants, we believe changing advisers should leave you feeling better informed, not burdened by more administration. With clear communication, a professional transfer of records and shared ownership of deadlines, your new accountant can quickly become a trusted part of how your business moves forward.