Prepare for HMRC IR35 Investigations

Test your IR35 processes with a mock HMRC investigation before the real thing arrives.

Be ready when HMRC investigates

When HMRC investigates IR35 compliance, they expect comprehensive evidence quickly. Businesses must provide determination processes, complete audit trails, and proof of reasonable care. Without proper preparation, gathering this documentation becomes overwhelming, and gaps in compliance become expensive mistakes. 

Enforcement has intensified across all sectors. Our mock investigation service tests your readiness now, when you can still strengthen weak points. Our solicitors guide you through every step, ensuring your processes meet HMRC’s expectations before they’re officially tested. 

Complete Mock Investigation Service

From initial training through follow-up review—the complete investigation preparation package

Senior Solicitor Guidance

Work directly with solicitors who handle real HMRC investigations. They know the questions HMRC asks, the evidence they demand, and the red flags they spot.

Complete Investigation Experience

We recreate every aspect from initial HMRC contact through final response. You experience tight timelines, pressure points, and decision moments before they happen for real.

Pre-Investigation Preparation

Learn exactly what HMRC requires, how to gather it, and how to present it effectively. We show you the documentation standards that demonstrate reasonable care.

Practical Scenario Testing

Real contractor cases are selected whilst we act as HMRC investigators. Through detailed questioning, we test your ability to explain and defend your IR35 determinations.

Comprehensive Findings Document

Receive a detailed report identifying weaknesses in your processes, contracts, and determinations. Each gap includes specific recommendations and priority rankings for remediation.

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Ready to Test Your IR35 Defenses?

Schedule your mock investigation with our solicitors who know exactly how HMRC operates