An HMRC tax investigation is a formal review of your tax affairs, from a single-aspect enquiry to a full investigation or COP9 case for suspected fraud. Once opened, HMRC may request detailed financial information, extend the scope of review, and escalate the enquiry depending on findings. Our expert tax investigation accountant helps you respond correctly, manage disclosures and minimise tax, interest and penalties. We deal with HMRC directly on your behalf
We take control once HMRC opens an enquiry or compliance check.
This is not general accounting. It is formal representation during an active investigation.
HMRC opens enquiries based on risk signals, data inconsistencies, or behavioural concerns. The scope determines exposure.
We take control of HMRC communication, strategy and response handling from the moment an investigation begins.
HMRC tax investigation help refers to professional support provided during HMRC enquiries, compliance checks, and investigations to manage risk and reduce penalties.
A tax investigation accountant handles communication with HMRC, prepares responses, reviews financial records, and negotiates penalties on your behalf.
HMRC may start an investigation when it detects inconsistencies, undeclared income, or unusual financial activity in your tax records.
Yes. HMRC can carry out initial checks or request information before formally opening a full investigation.
COP9 investigation help provides specialist support where HMRC suspects tax fraud. After receiving a Contractual Disclosure Facility offer under COP9, you have 60 calendar days to accept or reject it. If accepted, a valid Outline Disclosure must also be submitted within the same period, making immediate professional advice essential.
Failure to respond correctly within the deadline is treated as rejection, and HMRC may begin an investigation that could be criminal.
You will usually receive a formal HMRC notice, enquiry letter, or compliance check request.
Yes. HMRC can review previous tax years depending on the type of error or suspected behaviour.
Ignoring HMRC can lead to increased penalties, enforcement action, and possible escalation of the investigation.
It can take several months to over a year depending on complexity and documentation.
HMRC tax investigation services UK provide expert representation, reduce penalties, and ensure compliance during complex investigations.
