VAT Enquiries

VAT is a fundamental part of the UK tax system, and HMRC actively monitors businesses to ensure compliance. If you receive a VAT enquiry from HMRC, it’s important to understand why it has been initiated, what is expected from you, and how to respond. This page explains why HMRC carry out VAT enquiries, what HMRC may request, and the implications of errors, including the potential for wider investigations. We’ll also explain when to seek professional advice and how a tax adviser can help.

VAT enquiries, investigations, and compliance checks all refer to the process by which HMRC verifies the accuracy of a tax return. Depending on the type of investigation, the process can be intimidating, confusing and can come with ominous deadlines which, if missed, can put the recipient in a very difficult position. Therefore, it is vital that professional advice is sought as soon as the letters are received.

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VAT Enquiries - How can we help?

VAT investigations can be stressful, however the inTAX team can greatly reduce this stress by guiding you through the process, explaining the options available in layman’s terms and working with you and HMRC to achieve the best possible resolution.

inTAX has a team of ex-HMRC investigation officers and specialist tax dispute advisers. We can offer support in several ways:

  • Guidance on documentation: We can help you gather, review, and present records in a way that meets HMRC’s requirements.
  • Accurate calculations: We can double-check calculations, identify errors, and ensure accurate data is submitted.
  • Negotiating with HMRC: We can serve as an intermediary, negotiating with HMRC to resolve issues more efficiently.
  • Managing penalties: If there’s a risk of penalties, we can help to reduce or eliminate these by putting forward representations and highlighting mitigating circumstances.
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VAT Enquiries - What you need to know

Why do HMRC VAT enquiries start?

HMRC may start a VAT enquiry for various reasons. Common triggers include:

  • • Unusual VAT returns: If there are sudden fluctuations or patterns that don’t align with similar businesses in your sector, this can raise flags.

  • • Large refunds or repayments: If a business claims a large VAT refund, especially if it is unusual based on prior returns, HMRC may investigate to confirm the legitimacy.

  • • Late or incomplete submissions: Consistently late VAT returns or missing information on returns may indicate that the business isn’t maintaining adequate records.

  • • Industry-specific risks: Some industries are more susceptible to VAT fraud or errors, such as those with high cash transactions.

  • • Random selection: HMRC also conducts random checks to encourage a general level of compliance among businesses.

What does HMRC ask for?

During a VAT enquiry, HMRC may request various documents and information, including:

  • • VAT Records: HMRC will likely ask for recent VAT returns, calculations, and backup data to understand how VAT was calculated and reported.

  • • Sales and purchase records: Sales invoices, purchase receipts, supplier records, customer lists and debtors ledgers may all be requested.

  • • Business bank statements: To check for any discrepancies, HMRC might compare bank transactions with VAT records.

  • • Accounting records: Full accounts, such as profit and loss statements, and any supporting documents, can help HMRC validate figures.


HMRC usually sends a letter outlining what they need, the expected timeline for responses, and any potential next steps. These letters may seem intimidating, but it’s essential to stay calm and understand what’s required.

Can HMRC visit your business premises?

Yes, VAT officers may visit your business premises to inspect your VAT records (known as compliance checks) and make sure you’re paying or reclaiming the right amount of VAT.

Typically, HMRC will contact you in advance, providing at least 7 days’ notice. They will outline the information they need, the expected duration of the visit, and whether they intend to inspect your premises. If required, you can request to postpone the visit.

Can VAT errors lead to broader HMRC investigations?

When HMRC discovers errors in a business's VAT records, it often raises questions about the accuracy of other areas of tax compliance. VAT records are closely tied to other aspects of a business’s finances, such as income tax, corporation tax, and employer taxes. VAT discrepancies may raise concerns about:

  • • Undeclared income: Errors in VAT reporting might indicate that sales or income are underreported, prompting HMRC to examine corporation tax or income tax filings.

  • • Incorrect expense claims: Misreported VAT on purchases can lead HMRC to question other deductions or expenses claimed in your tax returns.

  • • Employer compliance: Discrepancies in VAT records may trigger a review of PAYE (Pay As You Earn) and National Insurance contributions.


If significant issues are found, HMRC may escalate the enquiry into a full tax investigation, which can be far more intrusive and potentially result in larger financial penalties or, in severe cases, a criminal investigation.

What to do if you receive a VAT enquiry

If you receive a VAT enquiry letter from HMRC, consider the following steps:

  • • Review the enquiry letter carefully: Make sure you understand what information is being requested. The letter should outline the purpose of the enquiry, deadlines, and any specific documents HMRC needs.

  • • Gather required documents promptly: Start gathering the requested records and double-check for accuracy. Missing or inaccurate information can prolong the enquiry or lead to further action.

  • • Double-check VAT calculations: Before sending any records, verify that your VAT calculations are accurate. Errors in calculations are a common reason for discrepancies.

  • • Respond within deadlines: Not responding or delaying communication with HMRC can lead to more scrutiny or even penalties. Aim to provide a response within the timeframe specified. If you need to ask for more time to respond, it usually won’t be a problem.

  • • Seek professional advice: While some VAT enquiries are straightforward, many can be complex. If you’re unsure how to handle the enquiry, don’t hesitate to reach out to a VAT specialist or tax disputes adviser.

When should I get help?

VAT is a complex area of tax, and even small errors in reporting can lead to significant issues during an HMRC enquiry. Seeking professional help can make a substantial difference, especially if:

  • • You’re unfamiliar with VAT requirements: If VAT compliance is new or complex for you, an adviser can provide clarity and ensure you’re prepared.

  • • The enquiry is complex: If the enquiry involves complex calculations, multiple tax years, or extensive records, professional help can simplify the process.

  • • You suspect errors: If you suspect that past VAT returns may contain errors, a tax disputes adviser can assist in identifying and correcting these issues.

  • • Penalties are possible: In cases where HMRC indicates potential penalties or prosecution, it’s critical to have an experienced adviser on your side to mitigate risks.

How we can help you with a VAT investigation

VAT enquiries can be a stressful experience, but with the right approach, you can manage them effectively and minimise their impact. By responding promptly, maintaining accurate records, and seeking professional advice when needed, businesses can navigate the enquiry process with confidence.

If you need help with a VAT enquiry or want to ensure your broader tax compliance, our team of specialists is here to assist. Contact us today for expert support and peace of mind.

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