5/5 based on 30 reviews

HMRC Compliance Checks

A compliance check means HMRC is querying a specific aspect of your tax return. It is not a criminal investigation. It is not a sign that HMRC thinks you have done something wrong. But how you respond to it matters. A well-handled compliance check closes in weeks. A badly handled one can escalate into something more involved.

What a Compliance Check Is

A compliance check, sometimes called an aspect enquiry, is HMRC’s most common form of investigation. Rather than reviewing your entire return, HMRC focuses on one or more specific areas: a particular expense claim, a rental income figure, a property transaction, or a discrepancy they have identified from third-party data. The letter you receive will usually specify what HMRC is looking at and what information they need from you.

These checks are not random. HMRC opens them because something has triggered their attention. That trigger might be a discrepancy between the income you declared and information HMRC holds from letting agents, Land Registry, banks, or other sources. It might be an expense claim that appears disproportionate to income. Or it might be a property transaction that was not followed by a CGT return. Understanding what triggered the check helps determine how to respond.

What Not to Do

Do not ignore the letter. HMRC will escalate if you do not respond, and silence is treated as non-cooperation which affects the penalty position. Do not respond in haste without understanding exactly what HMRC is asking for and why. The information you provide becomes part of the case. Do not provide more information than is specifically requested without first considering the implications. This is not about withholding anything — it is about responding accurately and proportionately. Everything you say in response to HMRC is on the record.

How We Help

We review the compliance check letter and assess what HMRC is asking for and why. We review the relevant section of your tax return and the supporting records to establish whether the position is correct or whether there is an error. We prepare a clear, accurate, and proportionate response to HMRC’s queries. We manage the correspondence through to resolution and, where an error is identified, we negotiate the penalty position to achieve the best outcome the facts support.

Penalty Position

Where a compliance check identifies an error, penalties may apply. The level depends on the nature of the error. Genuine mistakes with full cooperation can result in suspended or zero penalties. Careless errors typically attract penalties of 0 to 30 per cent of the additional tax, depending on cooperation. The distinction between a genuine mistake and carelessness depends on the care a reasonable taxpayer would have taken in the circumstances. We advise on the penalty position throughout the process and ensure the disclosure quality maximises the available penalty reduction.

Please tick how you would like us to contact you

Our Process

Step 1:

Send us the letter from HMRC. Do not respond to HMRC until we have reviewed it.

Step 2:

We review the letter, the relevant section of your return, and the supporting records.

Step 3:

We prepare and submit the response to HMRC on your behalf. We handle all correspondence from this point.

Step 4:

HMRC reviews the response. If they have further questions, we manage those too. When the check is resolved, we confirm the outcome and any adjustments.

Case Study

A landlord received a compliance check querying the rental income declared on their self-assessment return. HMRC’s records from the letting agent showed a higher figure than the amount declared. We reviewed the letting agent statements and the client’s records and identified that the discrepancy arose from a timing difference in how the agent reported income versus the basis period used on the return. We submitted a detailed response demonstrating that the income was correctly declared on the correct basis. The additional tax after adjustment was approximately GBP2,400. No penalties were applied because the error was a genuine mistake with full cooperation. The check closed within four months.

What Our Clients say

Need specialist advice on your property tax position?

Book a free 30-minute consultation to discuss your property tax position with a specialist accountant.

frequently asked questions

  • A compliance check is not a sign that HMRC suspects wrongdoing. In many cases it is a routine query about a specific figure or transaction. The important thing is to respond properly -- accurately, proportionately, and within the timeframe HMRC has set. Most compliance checks are resolved without penalties where the taxpayer cooperates fully and any errors are genuine mistakes.

Send Us Your HMRC Letter for an Initial Assessment

How Did You Find Out About Us?
Please tick how you would like us to contact you