Code of Practice 9 (Contractual Disclosure Facility)
HMRC COP8 or COP9 Investigation Help in Liverpool
If you are based in Liverpool or elsewhere in Merseyside and have received HMRC correspondence relating to a COP8 or COP9 Investigation, the process you'll go through is set by national HMRC procedure rather than local variation — but the specialists supporting you can still bring genuinely local context to your case.
Typical deadline: A COP9 letter starts a strict 60-day window to respond to the Contractual Disclosure Facility offer.
Understanding this COP8/COP9 case
At a glance
- COP8 targets suspected avoidance; COP9 specifically targets suspected deliberate fraud
- COP9's Contractual Disclosure Facility offers protection from criminal investigation, but only for what's fully disclosed
- The 60-day CDF decision window is one of the most consequential deadlines in any tax matter
- Both processes typically involve specialist HMRC investigation units and run far longer than a standard enquiry
Code of Practice 8 and Code of Practice 9 letters signal HMRC's more serious investigation procedures, and the distinction between them matters considerably. COP8 is used where HMRC suspects a significant loss of tax through avoidance or non-compliance but does not, at that stage, suspect deliberate fraud, whereas COP9 is used specifically where HMRC suspects deliberate behaviour and offers the taxpayer the Contractual Disclosure Facility as a route to make a full disclosure in exchange for HMRC's undertaking not to pursue a criminal investigation for the tax matters disclosed. Receiving a COP9 letter starts a strict 60-day window in which to decide whether to accept the Contractual Disclosure Facility, reject it, or make no response, and each of those choices carries materially different consequences.
Accepting the facility requires an outline disclosure followed by a detailed disclosure report, both of which need to be accurate and complete, since the protection from criminal investigation only extends to matters genuinely and fully disclosed. COP8 cases proceed differently, generally involving detailed correspondence and evidence gathering around the specific arrangement or period HMRC is querying, without the same disclosure-facility structure. Both processes can involve HMRC's specialist investigation units, meetings conducted under caution-like conditions, and a much longer timeline than a standard enquiry, often stretching over a year or more, which is why specialist representation from the outset matters so much in these cases.
The outline disclosure, submitted within the 60-day window if the Contractual Disclosure Facility is accepted, sets out in summary form the nature and broad extent of the deliberate conduct being disclosed. This is followed by a more detailed disclosure report, usually prepared with specialist input, which quantifies the tax loss precisely and explains how the figures were calculated. HMRC reviews the detailed report carefully, and any gaps or inconsistencies between the outline and detailed disclosure can undermine the protection the CDF was meant to provide, which is why accuracy at every stage matters more in COP9 cases than almost anywhere else in the tax system.
Once a disclosure is accepted, HMRC and the taxpayer typically negotiate a financial settlement covering the tax, interest and penalties due, with the penalty percentage reflecting factors including how much the taxpayer cooperated and how complete and timely the disclosure was. COP8 cases, lacking the same disclosure-facility structure, are more often resolved through a negotiated settlement following detailed correspondence and evidence review, though the same general principle applies — cooperation and a clear, well-evidenced position tend to produce better outcomes than a defensive or incomplete response.
How to prepare for a COP8/COP9 case
A few focused steps before you respond can make the whole process smoother.
- 1
Read the COP8 or COP9 letter in full before discussing it with anyone, including HMRC
- 2
Build a clear timeline of the arrangement, income or period HMRC is querying
- 3
Gather records supporting the relevant income, gains or arrangements as far back as needed
- 4
Get specialist input before the 60-day CDF window closes, not after
- 5
Avoid informal contact with HMRC until you've decided your approach
HMRC enquiries in Liverpool
Liverpool's economy is anchored by maritime trade, logistics and port-related industries, alongside a substantial visitor economy and a growing base of creative and digital businesses in the city centre. Port-related businesses often deal with import VAT, customs valuations and international supplier relationships, all of which can attract closer HMRC attention. The city's large hospitality and tourism sector also means cash reconciliation and seasonal income patterns are a recurring theme in compliance checks. Given the mix of international trade and cash-facing hospitality businesses, enquiries here can vary widely in scope and usually benefit from being scoped carefully at the outset.
What documentation to gather before you respond
- The COP8 or COP9 letter itself, read in full before responding
- A timeline of the arrangement or period HMRC is querying
- Records supporting the income, gains or arrangements in question
- A considered CDF decision, taken with specialist input
- A note of the 60-day deadline, diarised immediately
Common mistakes to avoid
Contacting HMRC informally to discuss the letter before deciding on a considered approach
Missing the 60-day CDF decision window while still deciding what to do
Submitting an outline disclosure that doesn't match the detail provided later
Underestimating how far back records may need to go to fully address the matter
Proceeding without specialist input, given how much the outcome depends on getting the disclosure right
What happens after you respond
You decide, within 60 days, whether to accept, reject, or not respond to the CDF offer
If accepted, an outline disclosure is submitted summarising the deliberate conduct
A detailed disclosure report follows, quantifying the tax loss precisely
HMRC reviews the disclosure and may raise further questions or arrange a meeting
A financial settlement is negotiated, covering tax, interest and penalties
Frequently asked questions about a COP8/COP9 case
What's the difference between COP8 and COP9?
COP8 is used where HMRC suspects a significant tax loss through avoidance or non-compliance but doesn't, at that stage, suspect deliberate fraud. COP9 is reserved for cases where HMRC specifically suspects deliberate behaviour, and comes with the offer of the Contractual Disclosure Facility.
What is the Contractual Disclosure Facility?
It's HMRC's offer, made under COP9, not to pursue a criminal investigation into the tax matters you disclose, in exchange for a full and accurate outline and then detailed disclosure. The protection only covers what is genuinely and completely disclosed.
What happens if I don't respond to a COP9 letter?
Not responding within the 60-day window is treated as rejecting the Contractual Disclosure Facility, which removes the protection it offers and can lead HMRC to pursue a criminal investigation using its own information and powers instead.
Can a COP9 case still lead to prosecution?
If the Contractual Disclosure Facility is accepted and the disclosure is genuinely full and accurate, HMRC has undertaken not to pursue a criminal investigation for the matters disclosed. Rejecting the offer, or disclosing incompletely, removes that protection.
How should I prepare after receiving a COP8 or COP9 letter?
The first days matter more here than in almost any other type of HMRC contact.
- Read the letter fully and identify whether it's COP8 or COP9
- Avoid contacting HMRC informally before you understand the implications
- Start building a timeline of the arrangement or period being queried
- Get specialist advice before the 60-day CDF decision window runs out
What records will I need to gather?
COP8 and COP9 cases often require going back further than a standard enquiry.
- Records and correspondence relating to the specific arrangement or period queried
- Bank statements and evidence of the income, gains or transactions involved
- Any professional advice previously taken on the matter
- A written timeline of events as you understand them
What's in an outline disclosure for COP9?
It's a summary of the nature and broad extent of the deliberate conduct being disclosed, submitted within the 60-day window, followed later by a more detailed report quantifying the tax loss precisely.
How is the penalty calculated in a COP9 settlement?
The penalty is generally calculated as a percentage of the tax lost, with the exact rate depending on factors like how fully and promptly the disclosure was made and how much the taxpayer cooperated throughout.
Speak to a specialist about your COP8 or COP9 Investigation
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Your enquiry
Topic: COP8 or COP9 Investigation
Area: Liverpool, Merseyside