What to Do If HMRC Opens a Tax Investigation — and How a Specialist Can Help

Receiving a formal letter from HM Revenue & Customs (HMRC) stating your tax affairs are under review can cause instant panic. Before we delve any further, it's important to note that an investigation doesn't automatically mean you are guilty or done anything wrong. In fact, HMRC routinely uses advanced data-matching technology, known as the Connect system, cross-referencing tax returns against your bank records, property registrations, and digital platforms, identifying potential discrepancies.

When you know how to navigate a tax investigation strategically with the right expert assistance, it makes the difference between a fast resolution and an expensive and drawn-out dispute. Let's take a closer look.

Identifying the Type of Enquiry

The first step is to identify why you are under investigation. The letter you receive, which is issued under Section 9A for individual returns and Section 12AC for partnerships, will outline what HMRC is looking into:

• Aspect Enquiry – this targets a single line item or specific query. This may include a capital gains calculation, high expense claim, or late VAT refund request

• Full Enquiry – this is a comprehensive review that examines your entire tax return, business accounts, along with supporting documentation for a given year

• Code of Practice 8 or 9 (COP8 or COP9) – this is a serious civil investigation, only used for complex cases or those where HMRC suspects deliberate tax evasion

Only Answer What Has Been Asked For

It's not uncommon, when receiving a formal letter from HMRC, for you to immediately try and resolve it yourself with a quick phone call. This often results in providing extra explanations or handing them non-requested files that could open new avenues for an enquiry that HMRC were not investigating in the first place. Answer only what HMRC has formally requested, backed by concrete evidence. Do not over-share.

Organise the Relevant Documents

Never make changes, throw away, or try to recreate financial documents. Gather the necessary records for the period in question. This may include:

• Business and personal bank and credit card statements

• Invoices, purchase receipts, and expense vouchers

• Payroll records, along with VAT return calculations

• Contracts, board meeting minutes, along with correspondence that is relevance to any major transactions

Know the Statutory Deadlines

HMRC must issue a formal enquiry notice within twelve months of the date your file was returned. What this means is if they miss the window, they can only open a Discovery Assessment if there is proof an error occurred:

• Careless behaviour allows for six years of back checks

• Deliberate behaviour allows for up to twenty years of back checks.

How a Tax Specialist Can Help

Your accountant can handle your tax filings, but when it comes to managing a HMRC enquiry, you could use the help of a tax dispute specialist, who understands the internal workings of the HMRC. Tax specialists can help with:

Information Request Filtering

HMRC often issue broad and informal requests for non-essential personal documents. A tax specialist ensures the document requests adhere to statutory boundaries.

Penalty Migration

UK tax law (Finance Act 2007) penalty rates can range from 0% to 100% based on whether your error was considered careless or deliberate. Tax specialists ensure that reasonable care was taken to eliminate or reduce any penalties.

Management of Meetings

It's not uncommon for HMRC to request an informal face-to-face or video interview with attendance rarely legally mandatory. A tax specialist can decline unnecessary interviews or represent you directly, avoiding the risk of misleading questions.

Settlement Negotiation

The majority of investigations end in a negotiated civil contract settlement. Your tax specialist will negotiate the final liability terms, interest calculations, along with a manageable payment plan.

Frequently Asked Questions

Can HMRC Inspect My Personal Bank Accounts When Investigating My Business?

HMRC does not automatically have access to personal accounts during a standard business enquiry. If they suspect business income was diverted into your personal account or if your personal account is used for business transactions, they can issue a statutory Information Notice under Section 36 of the Finance Act 2008, giving them the opportunity to inspect your personal bank accounts.

Does HMRC Pay for My Legal or Professional Fees is the Investigation Proves I Did Nothing Wrong?

Unfortunately not. HMRC does not reimburse professional costs of tax specialist fees that are incurred during a standard enquiry, even if the closure notice shows no additional tax is owed. Many businesses hold tax investigation insurance, known as fee protection insurance, covering any specialist fees during an audit.

What is the Difference Between a Closure Notice and Settlement Agreement in a HMRC Enquiry?

A closure notice is a formal document that is issued by HMRC, or requested by you through a tax tribunal, stating that the enquiry has officially been concluded. It sets out any final tax adjustments. A settlement agreement or contract settlement, on the other hand, is a legally binding contract that is negotiated between you at HMRC to settle any tax, interest, and agreed penalties. This is outlined in a single contract without formal litigation.

Conclusion

When you work with a tax specialist, you turn a challenging process into a managed negotiation, where your legal rights are protected, while reaching a final closure notice as quickly as possible. Have you received a tax investigation enquiry from HMRC and need specialist assistance? Contact King Consultants Accountancy now on 0800 669 6477 to discuss your case.