How to Switch Accountants: A Step-by-Step Guide

Switching accountants involves 7 key steps: finding a new firm, signing an engagement letter, triggering professional clearance, transferring records, notifying HMRC, settling outstanding fees, and beginning work with your new accountant. UK business owners change accountants for 6 main reasons including poor communication, rising fees, lack of proactive advice, slow response times, errors in filings, and outgrowing the current firm’s expertise.

The process is straightforward. The Institute of Chartered Accountants in England and Wales (ICAEW) governs the professional clearance procedure, which protects both the outgoing and incoming accountant. Most switches complete within 2 to 4 weeks.

Why Would You Need to Switch Accountants?

UK business owners switch accountants for 6 common reasons. These include poor communication, unexpected fee increases, lack of proactive tax planning, missed deadlines, errors in Company Accounts, and outgrowing a firm’s specialist capabilities.

According to a 2023 survey by the Federation of Small Businesses, 22% of UK small businesses changed their accountant within a 3-year period. The most common reason cited was poor responsiveness: 41% of respondents reported waiting more than 5 working days for a reply from their accountant.

A further 18% switched because their previous accountant failed to offer proactive advice on Corporation Tax planning or Making Tax Digital (MTD) compliance. Businesses with turnover above £500,000 were 3 times more likely to switch than micro-businesses, indicating that growing companies outgrow generalist firms quickly.

Switching becomes necessary when the relationship stops delivering value. If your accountant has not contacted you proactively in the last 6 months, or if you cannot reach them during key filing windows, these are strong indicators that a change is warranted.

What Is the Professional Clearance Process When Switching Accountants?

Professional clearance is a mandatory ethical procedure governed by the ICAEW Code of Ethics. It requires the incoming accountant to write to the outgoing accountant before accepting a new client, asking whether they have any reason why the appointment should not proceed.

The new accountant sends a professional clearance letter to your current firm on your behalf. The outgoing accountant must respond within a reasonable timeframe, typically 7 to 14 working days. They confirm whether any professional objections exist, such as unpaid fees or disputes.

According to ICAEW guidance, the outgoing accountant must not unreasonably delay clearance. If the outgoing firm fails to respond within 21 days, the incoming accountant may accept the appointment without clearance, provided they document their attempts to contact the previous firm.

You do not handle the clearance letter yourself. The new accountant prepares and sends it after you sign their engagement letter and authorise the contact. This protects both firms and ensures the handover follows professional standards.

The clearance process also involves the transfer of your HMRC agent authorisations. Your new accountant submits form 64-8 to HMRC, which transfers agent access for Self Assessment, Corporation Tax, PAYE, and VAT matters to the new firm.

How Do I Find a New Accountant Before Switching?

Finding a new accountant involves evaluating 5 key criteria: professional qualifications, sector experience, fee transparency, technology adoption, and location. Start by shortlisting 3 to 4 firms registered with a recognised supervisory body such as the ICAEW or the Association of Chartered Certified Accountants (ACCA).

Ask each firm whether they hold ICAEW Chartered Accountant status. Firms with this designation have passed rigorous examinations, carry professional indemnity insurance, and are subject to annual monitoring visits. Aqua Accounting is an ICAEW Registered Member Firm with 13 years of experience serving businesses across the North East.

Check whether the firm offers the specific services your business needs. A limited company may require Tax Returns / Taxation, VAT Services, Payroll Services, and Bookkeeping Services under one roof. Confirm that the firm is MTD compliant, as Making Tax Digital for Income Tax Self Assessment becomes mandatory from April 2026.

Request a fixed-fee proposal. Reputable firms quote monthly or annual fees in writing, eliminating surprise charges. Compare the scope of work included. Some firms charge extra for ad-hoc advice, dividend paperwork, or Companies House filings that others bundle into the monthly fee.

Schedule a consultation with at least 2 firms before deciding. Ask how quickly they respond to queries, what software they use (Xero, QuickBooks, FreeAgent), and whether they assign a dedicated contact rather than rotating staff.

What Information Do I Need to Transfer to a New Accountant?

Transferring information to a new accountant involves 7 categories of records. These include company registration details, prior year accounts, tax computations, HMRC correspondence, payroll data, VAT returns, and bank statements.

Provide your new accountant with your Unique Taxpayer Reference (UTR), Companies House authentication code, and PAYE reference number. These identifiers allow the new firm to access your records on HMRC and Companies House systems.

The outgoing accountant should hand over the following items:

1. Copies of the last 3 years of Company Accounts and tax computations
2. Fixed asset registers and depreciation schedules
3. Trial balances for the current financial year
4. Details of any open HMRC enquiries or investigations
5. Copies of the most recent VAT returns
6. PAYE and Real Time Information (RTI) submission records
7. Management accounts prepared to date this year

Under ICAEW guidance, the outgoing accountant must provide working papers and records to the new firm promptly after receiving professional clearance and settling outstanding fees. They cannot withhold records as leverage in a fee dispute. Doing so breaches professional conduct rules.

If your previous accountant used cloud software such as Xero or QuickBooks, the transfer is faster. The new accountant requests adviser access to the existing software, avoiding a full data export and re-import.

How Long Does It Take to Switch Accountants?

Switching accountants takes 2 to 4 weeks in most cases. The timeline depends on 3 factors: how quickly the outgoing accountant responds to professional clearance, whether outstanding fees are settled, and how complex your records are.

The typical breakdown follows this pattern:

• Days 1 to 3: You sign the new engagement letter and authorise professional clearance.
• Days 3 to 10: The incoming accountant sends the clearance letter. The outgoing accountant responds.
• Days 10 to 14: HMRC agent authorisation (form 64-8) processes. The new firm gains access to your tax records.
• Days 14 to 21: Working papers and historical records transfer.
• Days 21 to 28: The new accountant reviews your records and schedules an onboarding meeting.

Complex cases can extend the timeline to 6 weeks. These include businesses with multiple trading entities, outstanding HMRC enquiries, or incomplete records. Straightforward switches for sole traders with tidy cloud-based records often complete in under 2 weeks.

Can I Switch Accountants Mid-Financial Year?

Switching accountants mid-financial year is both permissible and common. No legal or regulatory restriction prevents you from changing your appointed agent during the year. HMRC and Companies House do not limit when you may switch.

The new accountant picks up from the point the previous firm left off. They reconcile the year-to-date figures from the working papers provided and complete the remaining work. This may involve quarterly VAT Services submissions, ongoing Payroll Services, or Business Accounting Advisory work for the remainder of the period.

The only timing consideration involves your current firm’s notice period. Most engagement letters require 30 days’ written notice. Check your existing engagement letter for termination clauses and any early termination fees before instructing a new firm.

Mid-year switches are common during periods of rapid growth, ownership change, or when filing deadlines reveal problems that the current accountant cannot resolve.

What Should I Look for in a New Accountant?

Evaluating a new accountant requires checking 6 specific criteria. Each criterion directly affects the quality and cost of the service you receive.

1. Professional qualifications. Confirm the firm is an ICAEW or ACCA registered practice. These bodies enforce continuing professional development, ethical standards, and formal complaints procedures.
2. Sector experience. The firm should demonstrate experience with your business structure, whether that is a limited company, partnership, or sole trader. Firms familiar with your industry understand relevant capital allowances, R&D tax credits, and sector-specific reliefs.
3. Fee structure. Insist on a written fixed-fee agreement with a clear scope of work. Avoid firms that bill hourly without caps.
4. Technology. The firm should use cloud accounting software compatible with Making Tax Digital requirements. This includes Xero, QuickBooks, Sage, or FreeAgent.
5. Proactive communication. Ask about their response time guarantee and how often they schedule review meetings. Quality firms offer at least one annual planning meeting.
6. Local presence. A firm based in your region understands local business networks, grant schemes, and regional tax considerations. Aqua Accounting operates from Newcastle upon Tyne and has served North East businesses for over 13 years.

How Do I Notify My Current Accountant That I Am Leaving?

Notifying your current accountant requires a formal written letter or email. State your intention to terminate their services, specify the termination date, and request that they cooperate with professional clearance from your new accountant.

Your letter should include 4 elements:

1. Your full name, business name, and company registration number
2. The intended termination date
3. The name and contact details of your new accountant
4. A request for the transfer of all working papers, records, and HMRC authorisations

Send the notification to both your accountant’s primary contact and the firm’s managing partner. This ensures the message reaches the decision-maker. Keep a copy for your records.

Your new accountant typically drafts this letter for you and manages the entire handover. You review, sign, and authorise the communication. Settle any outstanding fees with the outgoing accountant promptly. Under ICAEW rules, the outgoing firm must release working papers once fees are paid, regardless of any ongoing disputes about service quality.

Frequently Asked Questions

Is it difficult to switch accountants?

Switching accountants is not difficult. The new firm manages professional clearance, HMRC agent transfers, and record requests on your behalf. Most switches complete within 2 to 4 weeks. The process requires approximately 30 minutes of your time signing engagement letters and authorising data transfer. Aqua Accounting handles the entire handover for new clients, including all contact with the outgoing firm. Learn more about our Business Accounting Advisory services.

Can I switch accountants at any time?

You can switch accountants at any point during the financial year. No legal restriction limits when you may change your appointed agent with HMRC or Companies House. The only constraint is the notice period specified in your current engagement letter, typically 30 days. Mid-year switches are routine for growing businesses that need additional Bookkeeping Services or specialist Tax Returns / Taxation support.

Will switching accountants cost me money?

Switching accountants involves 2 potential costs: settling your final invoice with the outgoing firm and paying an onboarding fee to the new accountant. Many firms, including Aqua Accounting, waive onboarding fees for new clients. The outgoing accountant must release your working papers once final fees are settled, per ICAEW guidance. Any investment in switching typically recovers through improved tax planning and competitive ongoing fees. Explore our transparent Corporation Tax pricing.

Do I need to tell HMRC if I change accountants?

You do not need to notify HMRC directly when changing accountants. Your new accountant files form 64-8 with HMRC, which transfers agent authorisation for Self Assessment, Corporation Tax, PAYE, and VAT. HMRC processes this within 5 to 10 working days. The process is automatic once the new firm submits the paperwork. Review our VAT Services and Corporation Tax pages for details on how we manage HMRC compliance.

What happens to my records when I switch accountants?

Your records transfer to the new accountant after professional clearance completes and outstanding fees are settled. The outgoing accountant provides working papers, tax computations, and historical Company Accounts. If your previous firm used cloud software such as Xero, the new accountant gains adviser access without a full data export. ICAEW rules require the outgoing firm to release records promptly. Contact Aqua Accounting for Limited Company Formations and full accountancy support.

Disclaimer:

The information provided in this blog is for general informational purposes only and does not constitute professional advice. While every effort is made to ensure accuracy, Aqua Accounting accepts no responsibility for any actions taken based on this content. You should seek professional advice tailored to your individual circumstances.