HMRC Defence & Tax Disputes
HMRC Investigations Can Escalate Quickly.
We Stop Them.
Our panel has extensive experience handling complex tax matters and defending clients under serious HMRC pressure. Former HMRC investigators are among our advisers.

Services
How We Defend You
HMRC Investigations
Full support through all phases of an HMRC inquiry, from opening through to closure.
Section 9A Enquiries
Expert guidance on personal and business tax return enquiries under s9A TMA 1970.
Code of Practice 8
Specialist advisory for complex tax avoidance investigations under CoP8.
Code of Practice 9
Handling serious fraud investigations (CDF process) with experienced panel members.
Discovery Assessments
Challenging out-of-time assessments and discovery determinations strategically.
Penalties & Interest Disputes
Appealing disproportionate penalties and negotiating reduction in interest charges.
Statutory Demands
Immediate strategic response to HMRC statutory demands to prevent escalation.
Winding-Up Petition Defence
Urgent intervention when HMRC presents a winding-up petition against your company.
HMRC Enforcement Negotiation
Direct negotiation with HMRC enforcement teams to reach practical, agreed solutions.
Our approach is focused on protecting the client while ensuring the most strategic and legally sound resolution.
Why Our Panel
Why GeeCoopers for HMRC Matters
Inside Knowledge
Former HMRC investigators on our panel understand exactly how HMRC conducts enquiries, the internal processes, and the decision-making criteria.
Rapid Stabilisation
We act immediately to halt escalation, respond to HMRC correspondence professionally, and create breathing room for a considered strategy.
Technical Depth
Our chartered accountants and tax specialists provide technically rigorous analysis to challenge assessments and defend your position.
Legal Support
Where tribunal proceedings or judicial review are required, our barristers and legal panel are engaged without delay.
Emergency Support
Time-Critical?
Act Now.
Many clients approach GeeCoopers under immediate pressure. Our panel conducts a rapid strategic review, identifies the key risks, and works to stabilise the situation immediately.
Early intervention can often prevent problems from escalating further.
We assist when you face:
- HMRC enforcement action or investigation
- Statutory Demand or Winding-Up Petition
- Legal claims or regulatory investigations
- Director liability concerns
- Commercial disputes threatening your business