PAROUSIALimited
Expertise
Case Studies
Our Team
Insights
Contact
Expertise
Case Studies
Our Team
Insights
Contact
Back to Case Studies
COP 9 INVESTIGATION

Successful Resolution of an HMRC COP 9 Investigation

An accountant subject to a serious HMRC investigation under Code of Practice 9, concerning incorrect company accounts and associated corporate and personal tax returns submitted over a number of years.

No prosecution
Settled without criminal proceedings
3 min read

Background

Parousia advised an accountant who became subject to a serious HMRC investigation under Code of Practice 9 (COP 9), concerning incorrect company accounts and the associated corporate and personal tax returns submitted over a number of years.

Given the nature and extent of the inaccuracies, the matter carried significant financial and professional consequences, together with the potential risk of criminal investigation.

Our approach

Parousia undertook a detailed reconstruction and review of the historic accounting and taxation position, identifying the necessary corrections and quantifying the resulting tax liabilities.

Corrected accounts and tax computations were prepared, together with a comprehensive disclosure report for submission to HMRC explaining the relevant circumstances and irregularities.

Throughout the investigation, Parousia managed the dialogue and negotiations with HMRC, while demonstrating the client's full cooperation, acceptance of the errors and genuine contrition.

Outcome

Following detailed negotiations, an agreed settlement was reached with HMRC, bringing the investigation to a conclusion without escalation to criminal proceedings.

Parousia was also successful in negotiating substantially reduced penalties, reflecting the client’s cooperation and the extensive remedial work undertaken, thereby materially reducing the overall financial consequences of the investigation.

Client identities and identifying details have been withheld. Every matter turns on its own facts and the outcomes described are not a guarantee or prediction of the result of any other engagement.

The Expertise Behind This Matter

COP 9 Fraud InvestigationsCriminal Tax DefenceCOP 8 Civil Enquiries

Other Matters

VAT & KITTEL DEFENCE
Kittel defence
VAT exposure substantially reduced

Multi-Year VAT Enquiry and Kittel Allegations Defended

A corporate client facing extensive HMRC VAT enquiries running over a number of years, including serious allegations under the Kittel principle that could have denied its right to recover input VAT.

3 min readRead the full matter →
PRE-ARRIVAL PLANNING
IHT, CGT & IT
Coordinated before UK arrival

A Wealthy International Family Structured Before Arriving in the UK

A wealthy international family planning their relocation to the UK, advised on the structuring and timing of their worldwide assets ahead of arrival — and on the practical side of settling here, from property to schooling.

3 min readRead the full matter →
EMIGRATION & RESIDENCE
18 months
Advising departures since the reforms

Leaving the UK After the Abolition of the Non-Dom Regime

High-net-worth clients considering emigration from the UK following the abolition of the non-domicile regime, advised on the Statutory Residence Test and on establishing bona fide non-UK residence where the family, the home and the children’s schooling remained here.

4 min readRead the full matter →

Facing Something Similar?

Speak to a senior adviser in confidence. The earlier we see the correspondence, the more room there is to shape the outcome.

Schedule Confidential Consultation

PAROUSIA

Limited

Elite tax advisory and HMRC investigation defence for international families and private capital since 1987.

Strategic Legal & Accounting Partnerships

Expertise

  • Accountancy & Compliance
  • COP 8 Enquiries
  • COP 9 Investigations
  • Criminal Defence
  • Immigration Planning
  • Emigration Services
  • Estate Planning
  • All Expertise

Company

  • Our Team
  • Case Studies
  • Insights
  • Privacy Policy

Contact

  • Airport House, Purley Way
    Croydon CR0 0XZ
    United Kingdom
  • 020 3879 7940
  • PaulaPayen@parousia-accounting.com

© 2026 Parousia Limited. All rights reserved.

Individual regulation under ATT/CIOT and ACCA
Privacy PolicyContact