HMRC Tax Investigation & Compliance Check Support
Received a Letter From HMRC?
An HMRC letter can relate to a specific tax return, particular transaction or a wider review of your tax affairs. The first step is to establish exactly what HMRC is asking for and the deadline for responding. HMRC may check Self Assessment returns, Company Tax Returns, PAYE records, accounts, tax calculations and other tax matters.
Our Success Rate
We’ve successfully defended individuals and businesses through hundreds of HMRC tax investigations from simple compliance checks to full-blown fraud inquiries.
What We Do
Comprehensive Tax Investigation Support
We specialise in resolving HMRC issues quickly and efficiently, while protecting your rights and minimising disruption.
Services Included
- HMRC correspondence review & interpretation
- Representation during investigations
- Voluntary disclosure support
- Tax enquiry and compliance check defence
- COP8 / COP9 serious investigation handling
- Penalty reduction and settlement negotiation
Who It’s For
- Individuals or businesses facing HMRC scrutiny
- Late filers or those with historical tax issues
- Anyone who’s received a letter from HMRC
- Directors, landlords, crypto traders, side hustlers
- People worried about undeclared income or mistakes
Our Tax Investigation Services Include
HMRC Letter Review
We review the HMRC correspondence to identify the type of enquiry, information requested and important response dates. This gives you a clearer understanding of what HMRC is examining before documents or explanations are provided.
Compliance Check Support
A compliance check is HMRC's process for checking whether the correct amount of tax has been paid and the correct allowances or reliefs have been claimed. We can help review the areas being checked, organise relevant records and prepare information needed to respond to HMRC.
Information & Document Requests
HMRC may request records, explanations or supporting documents during a compliance check. We can help identify which records relate to the request and organise the information so the response addresses the points HMRC has raised.



How Our HMRC Support Process Works
Review the HMRC Contact
We identify what HMRC is checking, what information has been requested and the deadline for responding.
Review Your Tax Position
We examine the relevant returns, records and circumstances to understand the issues raised.
Manage the Next Steps
Where included within the engagement, we help you respond to further HMRC questions and understand the outcome of the enquiry.
Book a free call with a tax investigation expert today.
The earlier we act, the better the outcome. Whether it’s a simple check or a complex probe, we’ll protect your rights, minimise penalties, and get you through it.
Common Questions Tax Investigation Support
HMRC may open a compliance check where it wants to verify whether a return, claim or wider tax position is correct. HMRC says checks can be prompted by figures or claims that appear inconsistent, although the reason will depend on the individual case.
It is a review by HMRC to check whether the correct tax has been paid and the correct allowances or reliefs have been claimed.
An authorised tax agent can deal with HMRC on relevant matters where the required authority and scope are in place.
HMRC states that the level of cooperation and disclosure can be relevant when considering penalties. However, the result depends on the circumstances and cannot be guaranteed.
There is no single duration. The time required depends on the scope of the check, the records involved, the number of issues and how quickly information can be provided.