Tax Investigation Support

HMRC Tax Investigation Services

Receiving a tax investigation notice from HMRC can be stressful and daunting. Whether it’s a routine compliance check, an aspect enquiry, or a full investigation, CBM Accounting provides expert representation and support throughout the entire process — protecting your interests and minimising potential liabilities.

Our experienced tax advisors have handled hundreds of HMRC enquiries and investigations across all tax types. We know how HMRC operates, what they look for, and how to respond effectively to achieve the best possible outcome for you.

Types of HMRC Investigations We Handle

• Aspect enquiries — HMRC questions specific entries on your return
• Full enquiries — comprehensive review of your entire tax return
• Code of Practice 8 (COP8) — suspected tax avoidance
• Code of Practice 9 (COP9) — suspected serious fraud (Contractual Disclosure Facility)
• VAT inspections and compliance visits
• PAYE and employer compliance reviews
• IR35 status determinations and challenges
• Voluntary disclosures to HMRC

Our Investigation Support Services

• Initial assessment of HMRC’s enquiry letter and scope
• Preparation of all responses and documentation
• Direct liaison with HMRC on your behalf
• Attendance at HMRC meetings (in-person or virtual)
• Negotiation of settlements and penalties
• Penalty mitigation and reasonable excuse arguments
• Appeal support through tribunals if needed
• Preventative compliance reviews to reduce future risk

Don’t Face HMRC Alone

Many taxpayers make their situation worse by responding to HMRC without professional guidance. Every word you say or write can impact the outcome. CBM Accounting acts as your shield — we handle all communication, protect your rights, and work to achieve the most favourable settlement. Early engagement is critical, so contact us as soon as you receive any HMRC correspondence.