Worried business owner reviewing financial documents, with calculator and laptop in front, representing concerns over accountant liability or financial mistakes.

Is My Accountant Liable If Something Goes Wrong?

July 01, 20254 min read

When you entrust an accountant with your business’s financial records, tax returns, and compliance, it’s natural to expect accuracy, professionalism, and care. But what happens if things go wrong? Is your accountant legally responsible? Can you hold them liable for errors, mistakes, or oversights that cost you money or cause problems with HMRC or other authorities?

This article explains when and how an accountant might be liable, the limits of that liability, and what you should know to protect your interests.

Understanding the Accountant’s Role and Responsibility

Accountants provide a valuable service, but it’s important to remember they act as advisors and preparers based on the information you give them. They do not make business decisions for you, nor can they guarantee specific outcomes such as tax savings or avoiding penalties.

Their responsibility includes:

  • Preparing accurate accounts and tax returns based on your records

  • Advising you on relevant laws and regulations

  • Meeting filing deadlines

  • Acting with reasonable skill and care in their work

If your accountant fails in these duties through negligence, errors, or misconduct, they may be held liable for resulting losses.

What Does Liability Mean in This Context?

Liability means legal responsibility. If an accountant is liable, they may have to compensate you for losses caused by their mistakes or negligence.

However, liability is not automatic. You need to prove:

  1. Duty of Care: The accountant owed you a professional duty.

  2. Breach of Duty: They failed to meet the standard expected of a competent accountant.

  3. Causation: Their breach directly caused your loss.

  4. Damages: You suffered a financial loss as a result.

Without all these elements, liability is difficult to establish.

Examples of When an Accountant Might Be Liable

  • Incorrect tax calculations that cause underpayment and penalties

  • Failing to submit returns on time, resulting in fines

  • Poor advice leading to unplanned tax bills or legal issues

  • Errors in payroll causing incorrect tax or National Insurance deductions

  • Misclassification of expenses or income resulting in HMRC investigations

In these cases, if it can be shown the accountant was negligent and you suffered losses, they could be liable.

What Limits Accountant Liability?

1. Client Responsibility

Ultimately, the business owner or director is responsible for the accuracy of tax returns and financial records. Accountants prepare and advise but the final responsibility rests with you.

2. Engagement Letter and Terms

Most accountants’ contracts include terms limiting their liability or capping compensation. It’s important to read and understand these agreements before signing.

3. Professional Standards and Insurance

Accountants are required to hold professional indemnity insurance to cover claims arising from negligence. This provides some protection, but claims processes can be complex.

4. Reasonable Skill and Care Standard

Liability requires proving the accountant fell below a reasonable professional standard. Honest mistakes or differences of opinion are generally not enough.

What Should You Do If You Suspect Your Accountant Is at Fault?

1. Gather Evidence

Collect all relevant documents, correspondence, and records. Clear evidence will support any claim.

2. Raise Concerns Early

Contact your accountant to discuss the issue. Sometimes errors can be corrected quickly without dispute.

3. Consider a Second Opinion

An independent accountant or advisor can review the situation and provide an unbiased view.

4. Check Your Contract

Understand your agreement’s terms on complaints and liability.

5. Contact Their Professional Body

If necessary, you can complain to their regulatory organisation, which can investigate misconduct.

Can You Claim Compensation?

If your accountant is found liable, you may be able to recover financial losses through compensation or insurance claims. This could include:

  • Penalties and interest paid due to errors

  • Additional tax liabilities caused by poor advice

  • Costs of rectifying mistakes or audits

Keep in mind, legal claims can be costly and time-consuming, so weigh the potential benefit.

How to Minimise Risk When Working With Accountants

  • Choose qualified, reputable professionals

  • Communicate clearly and keep accurate records

  • Understand and review your financial documents

  • Ensure your engagement letter clearly defines services and limits

  • Stay involved and informed in your accounting processes

A good relationship and clear expectations reduce misunderstandings and risk.

Summary

Accountants can be liable if their negligence or mistakes cause you financial loss, but proving liability requires meeting legal tests. You retain ultimate responsibility for your accounts and tax returns, so working closely and maintaining clear communication is essential.

If something goes wrong, act quickly to resolve the issue, gather evidence, and seek advice if needed. Understanding your accountant’s role and the limits of liability helps you manage risk effectively.

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