Tax Expert WitnessUnited Kingdom · taxexpertwitness.co.uk

COP8 / COP9 Expert Support

COP8 and COP9 are HMRC's civil fraud investigation procedures. Expert witnesses review financial records and HMRC's preliminary reconstruction before disclosure, ensuring the taxpayer's position is accurately represented.

Independent forensic review before COP9 Contractual Disclosure Facility submission is essential to ensure complete and accurate disclosure while challenging HMRC methodology where appropriate.

With COP9 methodology under debate in 2025 to 2026, expert witnesses with COP9 experience help navigate the evolving landscape between civil settlement and criminal investigation routes.

AspectDetail
Pre-disclosure reviewFinancial records analysis before CDF submission
Methodology challengeIndependent review of HMRC reconstruction
Settlement supportTechnical analysis informing negotiation position
Criminal riskAssessment of civil vs criminal route implications
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Frequently Asked Questions

A tax expert should be instructed as early as possible, ideally before accepting or responding to the COP9 offer and before preparing the Contractual Disclosure Facility. Early review ensures accurate disclosure and challenges HMRC methodology before settlement negotiations.

Instruct a tax expert witness

Tell us about your UK tax dispute and we will match you with a qualified expert witness experienced in HMRC enquiries and tribunal proceedings. We aim to respond within one working day.

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