Introduction
Being accused of tax evasion is a serious matter. It can lead to an HMRC investigation, financial penalties and, in serious cases, criminal prosecution or imprisonment.
Tax fraud allegations are usually investigated by HM Revenue and Customs. Depending on the circumstances, a case may be dealt with through civil procedures or pursued as a criminal matter.
If you have been accused of tax evasion in the UK, it is important to understand the possible consequences and the steps you should take before responding.
What Is Tax Evasion Under UK Law?
Tax evasion occurs where a person deliberately avoids paying tax that is legally owed.
- Failing to declare income
- Using offshore accounts to conceal funds
- Submitting false tax returns
- Concealing assets or business income
These actions may amount to criminal offences under various pieces of legislation including the Fraud Act 2006.
Tax evasion is different from lawful tax planning. Tax planning involves using legal methods to reduce tax liability. Tax evasion involves intentional deception or concealment.
How HMRC Investigates Tax Evasion
HMRC has significant powers to investigate suspected tax fraud.
- Data analysis
- Information received from banks
- Reports from third parties
- Discrepancies in tax returns
- International financial information sharing
Investigations may be carried out by HMRC’s Fraud Investigation Service (FIS).

Civil vs Criminal Investigations
Not all tax investigations lead to criminal prosecution.
HMRC may pursue either a civil or criminal route depending on the evidence and seriousness of the allegation.
Civil investigation
Civil investigations often focus on recovering unpaid tax and imposing financial penalties.
Criminal investigation
Where HMRC suspects deliberate dishonesty or fraud, the case may be pursued through the criminal courts.
A criminal investigation can involve interviews, search warrants, evidence seizure and potential prosecution.
Evidence HMRC May Use
HMRC investigations often rely on detailed financial evidence.
This may include:
- Bank account records
- Accounting records
- Business transaction data
- Email communications
- Digital financial data
Investigators may also obtain information through search warrants or production orders.
Potential Penalties for Tax Evasion
The penalties for tax evasion can be severe and depend on factors such as the value of the tax evaded and the level of dishonesty involved.
Possible outcomes include:
- Financial penalties
- Repayment of unpaid tax
- Asset confiscation
- Criminal conviction
- Imprisonment in serious cases
Courts consider factors such as:
- The value of the fraud
- Level of planning involved
- Duration of the conduct
- Harm caused to public finances
Steps To Take If You Are Accused of Tax Evasion
If you have been accused of tax evasion, your early response is important.
- Do Not Ignore the Investigation
Ignoring correspondence from HMRC can make matters worse. Investigations may escalate if concerns are not addressed. - Seek Legal Advice Early
Early legal advice can help you understand the allegation, the evidence being considered and how best to respond. - Preserve Financial Records
Financial documents may be important when assessing the allegation and preparing a response. - Avoid Making Informal Statements
Statements made without legal advice may affect your position later. - Understand Your Legal Rights
If you are invited to attend an interview or provide information, you are entitled to seek legal advice beforehand.
Facing Legal Issue?
Speak to our Fraud & Financial Crimes team for confidential advice on your position and next steps.
Strictly Confidential and No Obligation

How a Criminal Defence Solicitor Can Help
If you are facing allegations of tax evasion, legal advice should be sought as early as possible.
A criminal defence solicitor can assist by:
- Advising during HMRC interviews
- Reviewing evidence gathered by investigators
- Identifying potential weaknesses in the prosecution case
- Preparing the defence approach
- Representing you in court proceedings where necessary
Legal guidance can help ensure your rights are protected throughout the investigation process.
Speak With Experienced Criminal Defence Solicitors
Allegations of tax evasion can have serious legal and financial consequences. If you are under investigation by HMRC or have been accused of tax fraud, obtaining professional legal advice is an important step in protecting your position.
Our criminal defence solicitors advise individuals facing complex financial crime allegations, including HMRC investigations and tax evasion cases.
If you need advice about tax evasion allegations, contact our team to discuss your situation and obtain clear legal guidance.
5 Key Takeaways
- Tax evasion involves deliberately avoiding tax that is legally owed through dishonest conduct.
- HMRC may deal with a case through civil procedures or pursue a criminal investigation where deliberate fraud is suspected.
- Evidence may include bank records, accounting records, business transactions, emails and digital financial data.
- Penalties can include repayment of unpaid tax, financial penalties, confiscation of assets and imprisonment in serious cases.
- Early legal advice can help you understand the allegation, preserve evidence and respond carefully to HMRC.
Frequently Asked Questions
Yes. Deliberate tax evasion can amount to criminal offences including fraud under the Fraud Act 2006.
In serious cases involving large sums of money or organised fraud, imprisonment may be imposed by the court.
HMRC uses a range of tools including financial data analysis, international information sharing, and reports from banks and third parties.
Tax avoidance involves legal methods to reduce tax liability. Tax evasion involves dishonest conduct to avoid paying tax owed.
HMRC may apply to the court for a search warrant where investigators believe evidence of criminal tax offences may be found at the premises
The length of an HMRC investigation depends on the complexity of the case, the amount of evidence and whether the matter is handled as a civil or criminal investigation.
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