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hmrc self assessment investigation

The HMRC (His Majesty's Revenue and Customs) is responsible for collecting taxes and ensuring that taxpayers comply with their tax obligations. One crucial aspect of the UK tax system is the self-assessment process, which requires individuals and certain businesses to report their income and expenses. However, there are instances when the HMRC conducts investigations into self-assessment tax returns to ensure accuracy and detect potential tax evasion. In this article, we will delve into the HMRC self-assessment investigation process, its implications, and how taxpayers can handle such situations effectively.

Self-Assessment in HMRC?

Self-assessment is a system implemented by HMRC, where taxpayers, including self-employed individuals, sole traders, and company directors, are required to report their income and expenses. Taxpayers are responsible for calculating their tax liabilities and submitting a self-assessment tax return annually.

Who Needs to Complete a Self-Assessment Tax Return?

Certain individuals and businesses fall under the self-assessment regime. These include self-employed individuals, partners in a partnership, company directors, high-income earners, and individuals with complex financial affairs.

What Happens at the Start of an Inquiry in HMRC?

At the start of an inquiry by HMRC (His Majesty's Revenue and Customs), several important steps are taken to initiate the investigation process. The inquiry typically begins when HMRC decides to review a taxpayer's self-assessment tax return due to potential discrepancies, anomalies, or other factors that warrant further examination. Here's what happens at the start of an HMRC inquiry:

  1. Notification

  2. Gathering Information

  3. Review of Tax Return

  4. Request for Additional Information

  5. Interviews

  6. External Expertise

  7. Scope of Inquiry

  8. Assessment of Tax Liability

1) Notification

The first step is the formal notification of the taxpayer. HMRC will send a letter to the taxpayer, informing them that their tax return has been selected for an inquiry. The letter will explain the reasons for the investigation and may include specific areas of concern or information that requires clarification.

2) Gathering Information

Once the taxpayer receives the notification, they must collect and organize all relevant documents, records, and financial information related to the tax return under review. This may include income sources, expenses, deductions, and any other financial transactions that are relevant to the tax year in question.

3) Review of Tax Return

HMRC will carefully review the taxpayer's self-assessment tax return, comparing the information provided with the supporting documentation. They will look for discrepancies, errors, or inconsistencies that may require further investigation.

4) Request for Additional Information

As part of the inquiry process, HMRC may request additional information or documents from the taxpayer to clarify certain aspects of the tax return. The taxpayer is expected to respond promptly and provide the requested information to HMRC.

5) Interviews

In some cases, HMRC may conduct interviews with the taxpayer or their representatives to gain a better understanding of the financial affairs and any potential issues related to the tax return. These interviews may be conducted in person, over the phone, or through written correspondence.

6) External Expertise

Depending on the complexity of the case, HMRC may seek assistance from external experts, such as forensic accountants or specialists in particular industries, to help with the investigation.

7) Scope of Inquiry

The scope of the inquiry will be determined based on the initial findings and the information provided by the taxpayer. HMRC will focus on the specific areas of concern to establish whether there are any errors, omissions, or potential tax evasion.

8) Assessment of Tax Liability

Throughout the inquiry, HMRC will assess the taxpayer's tax liability for the relevant tax year based on the findings of the investigation. If discrepancies are identified, the tax liability may be adjusted accordingly.


It is important for taxpayers to respond to the inquiry with full cooperation, transparency, and accuracy. Providing all requested information and cooperating with HMRC throughout the process can help expedite the inquiry and demonstrate compliance with tax regulations. Seeking professional advice from a tax advisor or accountant can also be beneficial in handling an HMRC inquiry effectively and ensuring that the taxpayer's rights are protected throughout the investigation.

What Business Taxes Does HMRC Investigate?

HMRC (His Majesty's Revenue and Customs) investigates various business taxes to ensure compliance with tax regulations. Businesses in the United Kingdom are subject to different types of taxes, and HMRC may conduct investigations into any of the following business taxes:

  1. Corporation Tax

  2. Value Added Tax (VAT)

  3. PAYE (Pay As You Earn)

  4. Self-Employment Income Tax

  5. National Insurance Contributions (NIC)

  6. Construction Industry Scheme (CIS)

  7. Capital Gains Tax (CGT)

  8. Stamp Duty Land Tax (SDLT)

  9. Customs and Excise Duties

  10. Environmental Taxes

1) Corporation Tax

This tax is applicable to limited companies and certain organizations. HMRC may investigate a company's corporation tax return to verify that it accurately reflects the company's profits and the tax liability is calculated correctly.

2) Value Added Tax (VAT)

HMRC may investigate businesses that are registered for VAT to ensure they have correctly accounted for and reported their VAT transactions. This includes assessing whether the correct VAT rates have been applied and whether input tax claims are legitimate.

3) PAYE (Pay As You Earn)

PAYE is the system through which employers deduct income tax and National Insurance contributions from employees' salaries. HMRC may investigate businesses to verify that they have correctly operated the PAYE system and reported accurate payroll information.

4) Self-Employment Income Tax

HMRC may investigate self-employed individuals to ensure that they have reported their income accurately and claimed legitimate business expenses.

5) National Insurance Contributions (NIC)

Businesses must deduct NIC from their employees' wages and also pay employer NIC. HMRC may investigate to ensure proper compliance with NIC regulations.

6) Construction Industry Scheme (CIS)

For businesses operating in the construction industry, HMRC may investigate compliance with the CIS, which governs tax deductions for subcontractors.

7) Capital Gains Tax (CGT)

If a business or individual sells assets, such as property or investments, HMRC may investigate to ensure that capital gains tax is correctly calculated and paid.

8) Stamp Duty Land Tax (SDLT)

For businesses involved in property transactions, HMRC may investigate to ensure that SDLT is accurately assessed and paid.

9) Customs and Excise Duties

Businesses involved in importing and exporting goods may be subject to customs duties and excise duties. HMRC may investigate to ensure compliance with customs regulations.

10) Environmental Taxes

Some businesses are subject to environmental taxes, such as the Climate Change Levy. HMRC may investigate to ensure compliance with these taxes.

It's important for businesses to maintain accurate and organized financial records and comply with all relevant tax regulations. By doing so, businesses can minimize the risk of an HMRC investigation and demonstrate their commitment to tax compliance. Seeking advice from tax professionals and staying up-to-date with changes in tax laws can also help businesses navigate the complexities of tax obligations effectively.

How to Prepare for a Tax Investigation

Preparing for a tax investigation can be a proactive approach to ensure a smooth and efficient process. Here are some essential steps to take when preparing for a tax investigation:

  1. Organize Financial Records

  2. Review Tax Returns

  3. Seek Professional Advice

  4. Understand the Reason for the Investigation

  5. Cooperate Fully

  6. Maintain Open Communication

  7. Know Your Rights

  8. Be Transparent and Honest

  9. Be Prepared for Interviews

  10. Review Tax Planning Strategies

  11. Know the Timeframe

  12. Keep Up with Tax Laws 

1) Organize Financial Records

Gather and organize all relevant financial records, including receipts, invoices, bank statements, payroll records, and any other documents related to income and expenses. Having well-organized records will help in providing accurate and timely information during the investigation.

2) Review Tax Returns

Review previous tax returns to identify any potential errors or discrepancies. If you discover any mistakes, rectify them before the investigation begins and inform HMRC of the corrections made.

3) Seek Professional Advice

Consider consulting with a qualified tax advisor or accountant who has experience in dealing with tax investigations. A professional can provide guidance on how to handle the investigation, represent you during the process, and ensure compliance with tax laws.

4) Understand the Reason for the Investigation

If you receive a notification of an upcoming tax investigation, carefully review the reasons provided by HMRC for the inquiry. Understanding the specific issues that triggered the investigation will help you focus on relevant areas during the preparation.

5) Cooperate Fully

Respond to HMRC's inquiries promptly and provide all requested information and documentation. Cooperation with HMRC is crucial during the investigation process.

6) Maintain Open Communication

Stay in touch with HMRC throughout the investigation, and if you encounter difficulties in providing certain information, communicate this to them in a timely manner.

7) Know Your Rights

Familiarize yourself with your rights and obligations during the investigation. Understand the scope of HMRC's powers and your rights to representation and appeal.

8) Be Transparent and Honest

Ensure that all information provided to HMRC is accurate, transparent, and complete. Avoid attempting to hide or manipulate any financial information.

9) Be Prepared for Interviews

If HMRC requests an interview, prepare thoroughly and ensure that your responses are accurate and consistent with the supporting documentation.

10) Review Tax Planning Strategies

If you have engaged in tax planning, review the strategies employed to ensure they are compliant with tax laws. Discontinue any aggressive tax planning that may raise concerns during the investigation.

11) Know the Timeframe

Understand the expected timeframe for the investigation and be prepared to provide the requested information within the specified deadlines.

12) Keep Up with Tax Laws 

Stay informed about changes in tax laws and regulations to ensure ongoing compliance with tax obligations. You can get in touch with FCCA Account & Tax LTD about changes in tax laws and regulations in UK.


Remember that preparing for a tax investigation involves honesty, cooperation, and organization. By being proactive and responsive, you can navigate the investigation process effectively and demonstrate your commitment to tax compliance. Seeking professional advice and representation can be beneficial, especially if the investigation is complex or involves significant financial matters.

What Are HMRC’s New Tools of Investigation?

The report from HMRC issued on 9 July 2020, HMRC (His Majesty's Revenue and Customs) had been continuously working on improving its investigative capabilities to tackle tax evasion and ensure tax compliance. While I don't have information on any developments beyond that date, I can mention some of the tools and initiatives that were in use or being considered by HMRC at that time. Please note that the following information may not include the latest developments:

  1. Connect System 

  2. Digitalisation and Data Analytics

  3. Artificial Intelligence (AI) and Machine Learning

  4. Real-Time Information (RTI)

  5. E-commerce Data Gathering

  6. Voluntary Disclosure Programs

  7. International Collaboration

  8. Online Tax Accounts 

1) Connect System 

HMRC's Connect system is a powerful data-matching tool that collates information from various sources, including banks, financial institutions, government departments, and overseas tax authorities. It allows HMRC to cross-reference data and identify potential discrepancies in taxpayers' financial affairs.

2) Digitalisation and Data Analytics

HMRC has been increasingly utilizing data analytics to analyze vast amounts of data and identify patterns of non-compliance. This includes using advanced algorithms to detect anomalies in tax returns and transaction data.

3) Artificial Intelligence (AI) and Machine Learning

HMRC has been exploring the use of AI and machine learning to improve its risk assessment capabilities, identify tax evasion patterns, and enhance its ability to target high-risk cases.

4) Real-Time Information (RTI)

The RTI system requires employers to submit payroll information to HMRC in real-time. This system helps HMRC monitor PAYE compliance and detect potential discrepancies in payroll reporting.

5) E-commerce Data Gathering

HMRC has been working with online marketplaces and payment processors to obtain data on e-commerce transactions, enabling them to address tax evasion and undeclared income from online businesses.

6) Voluntary Disclosure Programs

HMRC occasionally offers voluntary disclosure programs that allow taxpayers to come forward and correct errors or omissions in their tax returns. These programs provide reduced penalties and incentives for taxpayers to voluntarily disclose any non-compliance.

7) International Collaboration

HMRC collaborates with tax authorities in other countries to share information and combat cross-border tax evasion.

8) Online Tax Accounts 

HMRC's online tax accounts provide taxpayers with real-time access to their tax information, making it easier for them to review and update their financial details.


Please keep in mind that the tax landscape is continually evolving, and HMRC may have introduced additional tools or initiatives beyond my knowledge cutoff in September 2021. It is advisable to refer to the latest information on HMRC's website or official publications for the most up-to-date details on their investigative tools and capabilities.

What Should I Do in the HMRC Investigation?

If you find yourself facing an HMRC (Her Majesty's Revenue and Customs) investigation, it is essential to take certain steps to handle the situation effectively and ensure compliance with tax regulations. Here's what you should do during an HMRC investigation:

  1. Stay Calm and Cooperate

  2. Understand the Scope of the Investigation

  3. Seek Professional Advice

  4. Organize Financial Records

  5. Review Tax Returns

  6. Be Transparent and Honest

  7. Prepare for Interviews

  8. Know Your Rights

  9. Maintain Open Communication

  10. Be Patient

  11. Avoid Aggressive Tax Planning

  12. Learn from the Experience

1) Stay Calm and Cooperate

Receiving notification of an investigation can be concerning, but it's crucial to remain calm and cooperative throughout the process. Respond promptly to HMRC's communications and provide the requested information and documentation.

2) Understand the Scope of the Investigation

Review the reasons for the investigation provided by HMRC in their notification. Understand the specific areas of concern that triggered the inquiry, as this will help you focus on the relevant aspects during the investigation.

3) Seek Professional Advice

Consider seeking advice from a qualified tax advisor or accountant who has experience dealing with HMRC investigations. A professional can guide you through the process, represent you during interviews or meetings with HMRC, and ensure that your rights are protected.

4) Organize Financial Records

Gather and organize all relevant financial records, including receipts, invoices, bank statements, payroll records, and any other documents related to income and expenses. Having well-organized records will help you provide accurate information to HMRC.

5) Review Tax Returns

Review your previous tax returns to identify any potential errors or discrepancies. If you discover any mistakes, rectify them before the investigation begins and inform HMRC of the corrections made.

6) Be Transparent and Honest

Ensure that all information provided to HMRC is accurate, transparent, and complete. Avoid attempting to hide or manipulate any financial information, as this could lead to more significant penalties.

7) Prepare for Interviews

If HMRC requests an interview, prepare thoroughly and ensure that your responses are accurate and consistent with the supporting documentation.

8) Know Your Rights

Familiarize yourself with your rights and obligations during the investigation. Understand the scope of HMRC's powers and your rights to representation and appeal.

9) Maintain Open Communication

Stay in touch with HMRC throughout the investigation, and if you encounter difficulties in providing certain information, communicate this to them in a timely manner.

10) Be Patient

HMRC investigations can take time, depending on the complexity of the case. Be patient and continue to cooperate with HMRC until the investigation is concluded.

11) Avoid Aggressive Tax Planning

If you have engaged in tax planning, review the strategies employed to ensure they are compliant with tax laws. Discontinue any aggressive tax planning that may raise concerns during the investigation.

12) Learn from the Experience

Use the investigation as an opportunity to improve your understanding of tax regulations and compliance requirements. Take measures to avoid similar issues in the future.

FCCA Accounts Is a Professional Taxes Returns in the UK

FCCA Accounts is a reputable professional taxes company based in the UK. With a team of highly qualified and experienced accountants, they offer a comprehensive range of tax services to individuals and businesses alike. Whether you are a sole trader, a small business owner, or a large corporation, FCCA Accounts has the expertise to handle all your tax-related needs with efficiency and precision.

As a trusted tax specialist, FCCA Accounts provides a wide range of essential services, including tax returns services, VAT returns, bookkeeping, and payroll processing. They understand the complexities of the UK tax system and stay up-to-date with the latest regulations to ensure that their clients comply with all tax obligations while optimizing their tax position. 

Their personalized approach ensures that each client receives tailored solutions and expert advice, enabling them to manage their finances effectively and focus on the growth and success of their business. With a commitment to professionalism and a dedication to delivering outstanding results, FCCA Accounts has earned a solid reputation as a go-to taxes company in the UK.

Conclusion

An HMRC self-assessment investigation can be a challenging and anxiety-inducing experience for taxpayers. By understanding the investigation process, cooperating with HMRC, seeking professional advice, and maintaining accurate records, individuals and businesses can minimize the risk of facing an investigation. It is essential to comply with tax regulations diligently and rectify any errors promptly. Remember, honesty and transparency are crucial when dealing with HMRC.

FAQs

Can HMRC Conduct an Investigation Without Notifying the Taxpayer?

HMRC is required to notify the taxpayer in writing before initiating an investigation. However, there are instances when they may not disclose the reason for the investigation immediately.

What Are the Possible Penalties for Inaccuracies in the Tax Return?

Penalties for inaccuracies in the tax return vary depending on the severity and nature of the errors. They can range from financial penalties to criminal prosecution in severe cases.

Is It Advisable to Handle an HMRC Investigation Without Professional Representation?

While it is possible to handle an investigation independently, seeking professional representation from a tax advisor or accountant can significantly improve the outcome and reduce potential penalties.

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