COP9 investigation accountant London
COP9 Investigation support where HMRC suspects deliberate tax fraud.
Tax Accountant London helps individuals, directors, landlords, companies, business owners and internationally connected clients respond to HMRC Code of Practice 9 investigations, Contractual Disclosure Facility offers, suspected deliberate behaviour, outline disclosures, full disclosure reports, penalties and tax settlement.
Do not accept, reject or respond to the CDF offer before the facts, tax years, deliberate conduct risk, outline disclosure, criminal protection position, tax exposure and records have been reviewed.
We review the COP9 letter, deadline, suspected deliberate conduct, taxes, years and response options.
We consider outline disclosure, full disclosure report, records, tax exposure and behaviour position.
Tax, interest, penalties, HMRC questions, payment and closure are handled through a controlled process.
HMRC Code of Practice 9 support
COP9 is used where HMRC suspects tax fraud and offers the Contractual Disclosure Facility.
Under COP9, HMRC offers the Contractual Disclosure Facility. If the CDF contract is accepted, the taxpayer agrees to make a complete, accurate, open and honest disclosure of deliberate behaviour and any other irregularities. In return, HMRC agrees not to start a criminal investigation into the disclosed deliberate conduct.
COP9 is not a normal compliance check. The response must be careful, because accepting the CDF means admitting deliberate conduct, while rejecting it can carry serious risk if HMRC later proves deliberate behaviour.
Who needs COP9 investigation advice
Support for clients facing suspected deliberate tax behaviour allegations.
COP9 cases can involve individuals, company directors, landlords, business owners, employers, offshore account holders, trustees and companies where HMRC suspects that tax was deliberately underpaid or returns were deliberately incorrect.
Individuals and high earners
Unreported income, gains, offshore accounts, unexplained deposits, foreign assets or historic Self Assessment errors.
Business owners and directors
Cash takings, company extraction, director loans, dividends, private expenses, payroll and Corporation Tax issues.
Landlords and property owners
Undeclared rental income, property disposals, false expenses, jointly owned properties and earlier-year omissions.
Offshore and international clients
Foreign income, overseas gains, offshore structures, overseas property, CRS data and foreign tax reporting issues.
COP9 investigation services
Choose the response route by CDF deadline, conduct, records and tax exposure.
A COP9 response must be scoped around the exact HMRC letter. The strategy changes depending on whether the CDF is accepted, whether deliberate conduct is admitted, how many tax years are involved, what records exist and whether HMRC has already obtained third-party data.
Contractual Disclosure Facility review
The CDF decision should be made only after the facts and risks are reviewed.
A taxpayer offered COP9 must decide how to respond within HMRC’s deadline. Accepting the CDF involves admitting deliberate conduct. Rejecting the CDF may expose the taxpayer to further HMRC action if HMRC believes fraud occurred.
Acceptance usually means committing to a complete disclosure of deliberate behaviour and all other tax irregularities.
Rejection should be considered carefully because HMRC may continue civil action or consider other action where fraud is suspected.
HMRC’s COP9 process is time critical. The deadline should be diarised immediately and advice taken before responding.
The facts must be reviewed to decide whether the behaviour was deliberate, careless, reasonable care or something else.
Issues not disclosed properly may fall outside the protection offered by the CDF contract.
The CDF protection is linked to full, accurate and honest disclosure. It should not be treated as blanket protection.
COP9 outline disclosure
The outline disclosure is the first formal summary of what went wrong.
The outline disclosure should not be rushed. It needs to identify the deliberate conduct being admitted, the taxes involved, approximate periods, entities, income sources, arrangements and any other relevant irregularities.
The outline should clearly identify what deliberate conduct is admitted and which tax areas are affected.
Individuals, companies, partnerships, trusts or connected entities may need to be considered together.
Income, gains, VAT, PAYE, Corporation Tax, rental income, offshore income or company extraction issues may be included.
The outline disclosure should align with records and later full disclosure report work.
Common COP9 investigation areas
COP9 cases often involve suspected deliberate omissions or false tax positions.
HMRC may already hold information from banks, Companies House, property sources, digital platforms, overseas tax authorities, employers or previous enquiries. The disclosure must therefore be evidence-based and complete.
Suppressed sales, omitted cash receipts, private bank deposits, online income and incomplete business records.
Private expenses, unsupported invoices, false purchase records, inflated deductions or personal costs in a business.
Director loans, dividends, benefits, disguised remuneration, salary omissions and personal expenses through the company.
Undeclared rent, omitted disposal gains, false property expenses, finance cost issues and jointly owned property omissions.
Foreign bank accounts, overseas property, offshore investments, CRS data, foreign gains and offshore structures.
VAT suppression, false input tax claims, payroll omissions, employee payments, benefits, subcontractor and CIS records.
Full disclosure report
The full disclosure report should explain the conduct, quantify the tax and support settlement.
A COP9 full disclosure report normally needs a detailed narrative, year-by-year tax computations, interest, penalty analysis, records summary, explanation of behaviour and supporting schedules. It should be complete enough for HMRC to understand and settle the case.
What happened, who was involved, when it happened, why it happened and how the issue was discovered.
Tax, interest and penalties should be calculated by tax year, tax type, source and entity.
Bank statements, accounts, invoices, payroll records, VAT returns, foreign records and company documents are reviewed.
The report should support a clear settlement position including tax, interest, penalties and payment arrangements.
Deliberate behaviour and penalty position
COP9 is built around deliberate behaviour, but the final penalty still needs careful analysis.
Penalties depend on the tax lost, behaviour, disclosure quality, cooperation, seriousness of the conduct and whether the disclosure is complete. The aim is to make the disclosure accurate while protecting the taxpayer from unnecessary overstatement.
HMRC may allege that the taxpayer knew tax was due or knew the return was wrong but chose not to correct it.
False documents, hidden accounts, misleading explanations or steps to prevent discovery can increase penalty exposure.
A complete and cooperative disclosure can affect penalty reduction and HMRC’s settlement approach.
Health, reliance, adviser involvement, record failure, personal circumstances and timing may still need review.
HMRC COP9 meetings and questions
Meetings should be prepared carefully because answers can shape the investigation.
HMRC may ask to meet to understand the facts, conduct, records, entities and tax exposure. Before any meeting, the taxpayer should understand the issues, review documents and know how the CDF process affects the discussion.
We review likely HMRC questions, records, timeline, conduct, calculations and areas needing careful wording.
Where appropriate, we assist with meeting preparation, representation and post-meeting clarification.
Meeting notes should be checked carefully to ensure they correctly reflect what was said.
HMRC follow-up requests should be answered consistently with the outline and full disclosure position.
COP9 settlement and closure
Settlement should close the tax, interest, penalty and behaviour position properly.
COP9 settlement should be reviewed carefully before acceptance. It should cover all taxes, years, entities, interest, penalties, payment position and future compliance steps. Where figures are wrong or penalties are excessive, representations may be needed.
Income Tax, CGT, Corporation Tax, VAT, PAYE, NIC, CIS or other liabilities should be separately calculated.
Interest should be checked against due dates, payments already made and HMRC’s settlement statement.
Penalty percentage, behaviour, cooperation, disclosure quality and special circumstances should be reviewed.
Closure should confirm the agreed liabilities, years settled, payment position and ongoing tax obligations.
COP9, COP8 and compliance checks
The route matters because COP9 involves suspected fraud.
COP9 is different from an ordinary HMRC compliance check and different from COP8. COP9 is the Contractual Disclosure Facility route used where HMRC suspects tax fraud and deliberate conduct needs to be disclosed.
Documents needed for COP9 investigation support
The first document we need is the COP9 letter and CDF pack.
COP9 letter, CDF offer, HMRC factsheet, deadline, previous correspondence and officer details.
Tax returns, CT600s, VAT returns, payroll records, company accounts, computations and prior amendments.
Bank statements, invoices, ledgers, rental records, foreign statements, VAT invoices, payroll reports and contracts.
What happened, who prepared the returns, who knew what, what advice was taken and whether HMRC has been contacted.
COP9 investigation process
A controlled route from COP9 letter to disclosure, settlement and closure.
We review the letter, deadline, suspected conduct, tax years, records and whether CDF acceptance is appropriate.
We assist with the outline disclosure position, admitted conduct, scope and excluded or uncertain issues.
We review records, calculate tax, interest and penalties, and prepare the disclosure narrative and schedules.
We deal with HMRC questions, settlement review, penalty representations, payment position and closure documents.
COP9 investigation fees
Fees depend on the COP9 letter, tax years, records, entities and disclosure complexity.
We quote before work starts. A CDF letter review is different from a full COP9 investigation involving outline disclosure, full disclosure report, multiple taxes, offshore assets, companies, VAT, PAYE and penalty negotiation.
For reviewing the COP9 letter, CDF deadline, response options and immediate risk.
For reviewing facts, conduct, tax areas and preparing the outline disclosure response.
For full records review, tax calculations, interest, penalties, disclosure report, HMRC questions and settlement.
COP9 Investigation FAQs
Common questions about HMRC Code of Practice 9, CDF, outline disclosure, penalties and settlement.
What is a COP9 investigation?
A COP9 investigation is HMRC’s civil investigation route where HMRC suspects tax fraud. It is linked to the Contractual Disclosure Facility and requires very careful handling.
What is the Contractual Disclosure Facility?
The Contractual Disclosure Facility is the contract offered under COP9. If accepted, the taxpayer agrees to make a complete, accurate, open and honest disclosure. In return, HMRC agrees not to start a criminal investigation into the disclosed deliberate conduct.
Should I accept the CDF offer?
You should not accept or reject the CDF without advice. Acceptance involves admitting deliberate conduct. Rejection can carry risk if HMRC later proves deliberate behaviour.
How long do I have to respond to a COP9 letter?
COP9 is time critical and HMRC normally gives a strict deadline to respond to the CDF offer. The exact deadline in the HMRC letter should be checked immediately.
What is an outline disclosure?
An outline disclosure is the initial summary of the deliberate conduct and tax irregularities being disclosed under the CDF process. It should be prepared carefully because it sets the scope for the full disclosure report.
What is a full disclosure report?
A full disclosure report sets out the facts, deliberate conduct, tax irregularities, calculations, interest, penalties, evidence and settlement proposal for HMRC.
Can HMRC still prosecute after COP9?
The CDF provides protection only where the taxpayer makes a complete, accurate, open and honest disclosure of the deliberate conduct. False, incomplete or misleading disclosure can create serious risk.
Can COP9 cover companies, VAT or PAYE?
Yes. COP9 can involve personal tax, Corporation Tax, VAT, PAYE, National Insurance, CIS, offshore matters, company transactions and connected entities depending on the facts.
Will HMRC charge penalties in a COP9 case?
Penalties are likely where tax has been underpaid deliberately. The amount can depend on the tax lost, behaviour, concealment, cooperation, disclosure quality and settlement position.
Can you deal with HMRC on my behalf?
Once authorised and engaged, we can assist with COP9 letter review, CDF decision support, outline disclosure, full disclosure report, HMRC correspondence, penalty representations and settlement within the agreed scope.