Thinking about what to do when changing accountants but unsure where to start? Switching accountancy providers can seem daunting, yet the process is more straightforward than most business owners expect. Understanding the right steps will save you time, reduce stress, and protect you from HMRC penalties. This guide gives you practical, expert-backed advice for a smooth transition, whether you’re a sole trader, landlord, or company director. We explain exactly what HMRC and Companies House expect, what records you must transfer, and how to avoid the most common pitfalls. By the end, you’ll know precisely how to manage the change and keep your business fully compliant.

What to Do When Changing Accountants

Changing accountants in the UK involves more than just a quick email. This guide covers every step, from ending your old contract to transferring records and updating HMRC and Companies House, ensuring you stay compliant throughout.

Is It Time to Change Accountant? Key Reasons and Warning Signs

Each year, thousands of UK business owners consider changing accountant for small business needs due to dissatisfaction with service, missed deadlines, or rising fees. According to recent data, the most common triggers are slow response times, errors in tax filings, and a lack of proactive tax planning. These issues can lead to costly compliance failures if left unaddressed.

One Leicester landlord, for instance, moved to Tax Return Accountants after receiving repeated late filing penalties and discovering missed property expense claims. The change resulted in a £900 tax saving and the avoidance of a £100 HMRC penalty—proof that the right accountant can have a direct financial impact.

Poor service is not just an inconvenience—it can cost you real money.

Warning signs you need to act include slow or patchy communication, errors in annual accounts, and a lack of advice on tax-saving opportunities. If your accountant does not support Making Tax Digital or fails to keep up with changing HMRC rules, your risk of penalties increases. Many business owners mistakenly believe they must wait until the year-end to make a change, but the reality is you can act at any time—provided you coordinate the transition and ensure no deadlines are missed.

With over 93,000 chartered accountants in the UK (ICAEW, ACCA, CIMA, AAT), you have a wide choice. If you’re experiencing any of these issues, it may be time to review your options and seek a better fit for your business.

Common reasons for changing accountant

Frequent fee hikes, poor communication, and lack of sector expertise are the most cited reasons for switching. Many clients also move because their accountant does not proactively suggest tax planning strategies or fails to provide timely reminders about deadlines.

Warning signs your accountant isn’t right for you

Missed deadlines, recurring errors, or slow responses are clear red flags. If your accountant is not up to date with HMRC’s Making Tax Digital requirements, this is a serious compliance risk.

UK statistics: How many switch each year?

HMRC data shows that over 20% of small businesses change their accountant at least once every five years, with the main driver being service quality rather than price.

How to Switch Accountants UK: Step-by-Step Process

Changing accountancy providers in the UK is a structured process that protects your business and ensures compliance.

• Notify your outgoing accountant in writing and agree a handover date.
• Your new accountant will formally request clearance and records from your previous adviser.
• Transfer all accounting records securely, including cloud software access.
• Authorise your new accountant as your HMRC agent via the Agent Services Account.
• For limited companies, update Companies House if your accountant is a registered officer or office address.

Each step is crucial to avoid disruption, lost records, or missed deadlines. Below is a table summarising the key actions and who is responsible at each stage.

Missing any of these steps can result in lost HMRC correspondence or missed statutory deadlines. For limited companies, Companies House must be updated if your accountant is listed as a director, secretary, or registered office. Sole traders and partnerships do not need to inform Companies House but must update HMRC agent authorisation for Self Assessment and VAT.

Unlike most guides, at Tax Return Accountants we handle all HMRC agent authorisation requests for you, reducing the risk of missed notices or lost access. If you run a company, our Limited Company Accountants service ensures Companies House updates are filed correctly and on time.

Essential steps to change accountant UK

Start by confirming your new accountant’s regulatory status (ICAEW, ACCA, or AAT), then follow the checklist above to ensure nothing is missed.

Professional clearance explained

This is a formal process where your new accountant requests all records and background from your outgoing adviser. It ensures a clean break and helps prevent disputes over who is responsible for upcoming filings.

Special rules for limited companies and sole traders

Limited companies must update Companies House if the accountant’s details change. Sole traders only need to update HMRC agent authorisation.

What Records and Documents Should You Transfer to Your New Accountant?

Transferring accounting records UK-wide is now easier thanks to cloud solutions. Most modern practices use Xero, QuickBooks, FreeAgent, or Sage Accounting, which allow you to grant and revoke access instantly. If your old accountant used desktop software, request a secure export or backup file.

Security is critical. Always use encrypted email or a secure client portal when sending sensitive information. Never send your UTR or tax records via unsecured channels. If transferring physical documents, use tracked post and keep a receipt.

HMRC requires your new accountant to have agent authorisation before they can access your tax records or file returns on your behalf. This is done via your HMRC online account or by completing the relevant 64-8 form. If you’re moving mid-year, ensure all payroll, VAT, and CIS records are up to date before the transfer.

If you need help with routine financial records, our Bookkeeping Service can organise and digitise your paperwork before transfer.

Full list of documents your new accountant needs

Include all tax returns, accounts, payroll files, and access to any software you use. For limited companies, statutory books and shareholder registers are essential.

How to transfer records securely

Use encrypted email, secure online portals, or grant cloud software access. Never send sensitive data via unprotected email.

Using cloud accounting for smooth handover

Granting your new accountant access to Xero, QuickBooks, FreeAgent, or Sage speeds up the process and reduces the risk of lost data.

Notifying HMRC and Companies House of Your New Accountant

Imagine a Nottingham company director who forgets to update their accountant’s details with HMRC and Companies House. As a result, important tax notices are sent to the wrong address, leading to a missed Corporation Tax deadline and a £100 penalty.

• Authorise your new accountant as your HMRC agent via your online account or by submitting a 64-8 form.
• Update Companies House if your accountant is listed as a director, secretary, or registered office contact.
• Failure to update these records can mean missing key statutory notices or incurring late filing penalties.
• Only you (the business owner/director) can approve agent authorisation requests—your new accountant cannot do this alone.
• If your new accountant will handle VAT, Payroll, or CIS, ensure you grant agent authorisation for each service separately.

Notifying HMRC of new accountant details is essential for Self Assessment, Corporation Tax, VAT, and Payroll. Use your Government Gateway login to accept agent requests promptly. If your accountant is also your registered office or a company officer, update Companies House using the appropriate forms (AP01, TM01, AD01).

Forgetting to update these details is a common pitfall—don’t assume your outgoing accountant will do it for you.

Step-by-Step Checklist: Ending Your Contract and Avoiding Pitfalls

Formally ending your contract is just as important as starting with a new accountant. Many business owners assume the process is automatic, but failing to follow the correct steps can leave you exposed to missed deadlines or data disputes.

Always check your engagement letter for notice periods and any outstanding fees. Provide written notice to your old accountant and agree a handover date. Request confirmation that all records and professional clearance have been sent to your new adviser. During the transition, you remain legally responsible for meeting all HMRC and Companies House deadlines—do not assume your new accountant is authorised until you confirm it in your HMRC account.

Here is a checklist to keep your business protected:

• Review engagement letter for notice period and exit terms.
• Send written notice to outgoing accountant.
• Request and confirm transfer of all records and clearance.
• Settle any outstanding fees promptly to avoid delays.
• Double-check all agent authorisations are updated in your HMRC account.
• Monitor statutory deadlines—Self Assessment, Corporation Tax, VAT, Payroll, and CIS must be filed on time.
• Retain evidence of all correspondence and transfers.

Most people think the outgoing accountant will automatically notify Companies House, but this is not the case—responsibility lies with the company director. Failing to formally end your contract and update records can result in confusion over who is responsible for filings, with HMRC holding you liable for any errors or delays.

For more on ending contracts and compliance, see our Self Assessment Service.

What to Ask a New Accountant UK: Questions Before You Switch

Choosing a new accountant is a critical business decision that affects your compliance, tax efficiency, and peace of mind.

Before you appoint anyone, ask about their experience in your sector, regulatory status (ICAEW, ACCA, AAT), and approach to tax planning. Request details of their professional indemnity insurance and check independent reviews. Transparent, fixed-fee pricing is a must—avoid advisers who are vague about costs.

Ask what software they support: Xero, QuickBooks, FreeAgent, or Sage. If you’re an ecommerce seller or contractor, sector expertise is vital. Compare at least three firms using a checklist of qualifications, fees, and client feedback. Red flags include poor communication, lack of insurance, or reluctance to provide references.

For a detailed breakdown of accountancy fees, visit our Accountant Pricing page.

Special Considerations: Switching Accountants for a Limited Company

• Companies House must be updated if your accountant is listed as a director, secretary, or registered office.
• Provide your new accountant with all CT600 filings, statutory books, and shareholder registers.
• Update agent authorisation for Corporation Tax, VAT, and Payroll via HMRC online services.
• Check if your new accountant will also act as your company secretary or registered office—if so, file the relevant forms (AP01, TM01, AD01) with Companies House.
• Ensure all statutory deadlines (Confirmation Statement, annual accounts) are covered during the transition.

Below is a table summarising the extra steps for limited companies:

For detailed Corporation Tax support, see our Corporation Tax Service.

Switching Accountants: Key Steps for Contractors, Freelancers, Landlords, and SMEs

• Always choose an accountant with direct experience in your sector and preferred software.
• Ensure all industry-specific filings (e.g. CIS for construction, property income for landlords) are covered.
• Ask your new accountant about processes for onboarding clients mid-year and sector compliance.

For landlords, our Landlord Accountants service covers property-specific tax reliefs and deadlines.

How to Find an Accountant Near You

Looking for an accountant near me or a local accountant with sector expertise? Tax Return Accountants supports clients UK-wide, with a strong presence in key cities and the East Midlands. Here’s how we help in your area:

In Leicester, our team provides comprehensive support for landlords, contractors, and SMEs, with fixed-fee packages and face-to-face meetings available at our office: Tax Return Accountants, 6 Egginton Street, Leicester, LE5 5BA, 0116 4030595.

In London, we serve a diverse client base, including freelancers and ecommerce businesses, offering both in-person and virtual consultations with a chartered accountant near me.

Birmingham clients benefit from our expertise in construction, healthcare, and taxi driver accounting, with rapid response times and cloud software support.

Manchester businesses choose us for our proactive tax planning and Making Tax Digital support, delivered by local accountant UK professionals who understand regional challenges.

In Nottingham and across the East Midlands, we offer tailored advice for small businesses, landlords, and limited companies, ensuring compliance with both HMRC and Companies House requirements.

Our Google Business Profile is rated 4.9/5, reflecting our commitment to service quality and transparency. Read our reviews or book a free consultation today.

How to Verify an Accountant

For more information, contact us at 0116 4030595 or info@taxreturnaccountants.uk.

5-Step Accountant Selection Process

1. Identify your needs: Are you a sole trader, landlord, or limited company?
2. Shortlist 3 accountants: Compare based on reviews and sector expertise.
3. Verify regulation: Check ICAEW, ACCA, or AAT status.
4. Compare pricing: Look for transparent, fixed-fee packages.
5. Book consultation: Meet your shortlist and ask about onboarding and compliance processes.

Online vs Local Accountant: Which Is Right for You?

Choosing between an online and a local accountant depends on your business needs. Here’s a quick comparison:

Both approaches can work well—just ensure your chosen accountant is regulated and experienced in your sector.

Software Comparison: Xero, QuickBooks, FreeAgent, Sage Accounting

Most modern accountants support all major cloud platforms. Here’s how they compare for ease of record transfer and compliance:

Using compatible software can reduce the time and risk involved in transferring accounting records UK-wide.

Changing Accountant: DIY vs Professional Support

If you’re considering managing the process yourself, weigh the pros and cons:

Most businesses find the time and risk savings outweigh the cost of professional support.

Questions Your Accountant Should Ask You

• Are you VAT registered?
• Do you employ staff?
• Do you receive dividends?
• Do you own rental property?
• Do you expect income growth?

If your new accountant doesn’t ask these questions, consider it a red flag.

When to Change Accountant: 5 Warning Signs

• Slow communication
• Filing errors
• Missed deadlines
• Lack of tax planning
• No MTD support

UK Accountancy Statistics

• Over 93,000 chartered accountants in the UK (ICAEW, ACCA, CIMA, AAT).
• 1.5 million+ businesses enrolled in Making Tax Digital.
• 800,000+ HMRC late filing penalties issued in 2024/25.
• 62% of UK SMEs use an external accountant.

Next Steps

1. Review your current accountant’s performance and identify any warning signs.
2. Shortlist and verify new accountants, checking regulation and sector experience.
3. Plan your transition—notify all parties, transfer records securely, and confirm all agent authorisations and deadlines are covered.

Frequently Asked Questions

Why Choose Tax Return Accountants?

• ICAEW regulated
• AAT accredited
• Fixed fees from £7.50/month
• Making Tax Digital compliant
• Dedicated accountant
• UK-wide service
• Leicester based
• Free initial consultation

Our team supports clients across all sectors, from landlords and contractors to limited companies. Book your free consultation today to experience transparent, proactive support.