Understanding HMRC tax investigations

Understanding HMRC tax investigations

Tax investigations conducted by HM Revenue & Customs (HMRC) can be immensely daunting experiences for both businesses and individuals.

These enquiries are often fraught with stress, consume considerable time, and can incur substantial costs.

Understanding the HMRC tax investigation process and how best to manage enquiries is crucial to receiving a positive outcome.

Why does HMRC conduct tax enquiries and investigations?

HMRC gathers information from diverse sources – including public records and third-party entities such as financial institutions and government departments – to make sure that individual and business tax returns are completed accurately and fully.

HMRC has the authority to scrutinise any tax returns that seem suspicious

Tax investigations can take various forms, including full, aspect, and random enquiries.

Most investigations stem from data triggers that ring alarm bells for HMRC – for example, anomalies such as fluctuations in business profits or undisclosed capital gains from asset sales.

Aspect investigations focus on specific areas of a tax return, while full investigations entail a comprehensive review.

Additionally, cross-tax investigations extend beyond income tax to encompass PAYE and VAT records.

Keep clear records

You can minimise the risk of HMRC enquiries by maintaining meticulous records and documenting all the professional tax advice you receive.

Unfortunately, HMRC investigations can be random, and having good records doesn’t mean you won’t get investigated.

However, should HMRC raise a random enquiry, keeping all records on hand and in a clear order will make the investigation process quicker and easier.

At Butterworth Barlow, our expert tax advisers can help you put processes in place to minimise the risk of HMRC enquiries and investigations, giving you peace of mind for the long term.

I’m being investigated – what should I do?

If you receive notice of an investigation, you should meticulously review your tax returns to check for any discrepancies requiring rectification.

Our team can help you thoroughly review your financial records to identify any issues and ensure your affairs are in order.

You’ll typically have a minimum of 30 days to respond to HMRC.

Extensions may be sought in cases where additional time is needed to gather pertinent documents or due to delays in correspondence.

Timely cooperation with HMRC, coupled with the provision of relevant information and documents, will help to enable a swifter resolution.

At Butterworth Barlow, we can act as your first point of contact, handling all correspondence with HMRC to reduce the stress and ensure nothing is overlooked.

Progression and resolution

While HMRC may seek a meeting with you, the business owner, attendance is not mandatory.

Consider the potential benefits before consenting to a meeting. Remember that it can be held at any location, not exclusively on business premises.

The closure of a case is signified by HMRC issuing a closure notice or, in cases requiring adjustments, through a contract settlement agreement detailing tax liabilities, interest, and penalties.

Some investigations are closed relatively quickly, but others can take several years to conclude.

Disputes

Disputes regarding tax return errors often centre on penalties, which range from none for demonstrating reasonable care to escalating penalties for negligence or deliberate concealment.

Exploring avenues for challenge is advisable before resorting to formal action, with alternative dispute resolutions being a viable consideration.

If disagreements arise with HMRC, we can negotiate on your behalf and work to resolve the issue quickly and fairly.

Unresolved disputes may escalate to tribunal hearings, though these are best avoided where possible. associated time and costs warrant careful consideration.

Butterworth Barlow: By your side

Navigating HMRC tax investigations demands diligence, proactive engagement, and, at times, professional guidance.

Dealing with a tax enquiry or investigation from HMRC can be daunting, but with our team on your side, you don’t have to face it alone.

Our goal is to protect your interests, minimise disruption to your business, and achieve the best possible outcome.

To give you even greater peace of mind, we offer a Tax Investigation Service (TIS) to help cover the costs of professional fees in the event of an HMRC enquiry.

For further advice on dealing with an HMRC tax investigation, contact our experienced tax advisers today.

Insights

The Making Tax Digital for Income Tax countdown is getting louder – Are you ready yet?

February 5, 2026

If you have noticed more TV and online adverts for cloud accounting software lately, that is no accident as the…

Read More

When is a business expense really tax deductible?

January 29, 2026

One of the most common questions business owners ask accountants, “Can I put this through the business as an expense?”

Read More

What to do if you can’t pay your Self-Assessment tax bill on time?

January 22, 2026

The deadline for your Self-Assessment tax bill is just over a week away and you may find yourself under increasing…

Read More