Bonham & Brook supports businesses facing HMRC enquiries into R&D tax relief claims. We review the claim, prepare technical and financial evidence, represent your position and manage HMRC correspondence.
Facing an HRMC enquiry?
How We Help
Facing an HMRC Enquiry?
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Dedicated Enquiry Defence Team
A specialist team assigned to your case, managing every aspect of your HMRC enquiry response.
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HMRC Representation
We communicate directly with HMRC on your behalf, ensuring all responses are accurate and measured.
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End-to-End Case Management
From initial notice through to resolution, we manage the full lifecycle of your enquiry defence.
Led by ex-HRMC inspectors
How we help
Supporting you through the enquiry process
Dedicated enquiry defence team
We review the enquiry letter, assess the claim position and set the response strategy.
HMRC representation
We represent your position, prepare responses and manage correspondence with HMRC.
Technical and financial review
We review the technical explanation, supporting evidence and cost position behind the claim.
End-to-end case management
We coordinate actions, track response points and support the case through follow-up correspondence.
Meet Our Team
Dedicated Compliance Specialists at B&B
HMRC enquiry defence is handled by specialists who understand the technical, financial and compliance requirements behind R&D tax relief claims.
Your case is reviewed by the relevant members of our enquiry defence team, with clear responsibility for claim evidence, HMRC correspondence, cost methodology and response preparation.
After 9 years as an HMRC R&D Inspector & 7 years in private practice ensuring R&D claims are ‘quality assured’, Malcolm is really enjoying his role at B&B as Head of Compliance. What a friendly, welcoming & hard-working bunch of colleagues! Outside of work, Malcolm enjoys walking...
Malcolm Henderson
Associate Director - Head of Compliance
Ollie is a compliance manager, having worked in Research and Development since 2020. A member of the Association of Taxation Technicians (ATT), Ollie’s foundation in law, with undergraduate and postgraduate degrees, enhances his approach to tax advisory, offering clients a well-rounded perspective g...
Oliver Mountford
Compliance Manager
Lee, a graduate from the School of Hard Knocks, was an HMRC R&D Enquiry Officer for over 4 years until retiring on 31 August 2024. Retirement lasted for 2 whole months as, believe it or not, he really missed compliance work (plus his wife kept finding DIY tasks for him to do). He is now our Seni...
Lee Armstrong
Senior Compliance Officer
Lydia is a Senior Client Success Manager at Bonham and Brook, supporting both R&D and Compliance. Her role is to work closely with clients and guide them through their enquiry or R&D claim by understanding what they need, making sure they feel supported, and helping them get the most value f...
Lydia Shepherd-Wilson
Senior Client Success Manager
Our edge
Expert HMRC Enquiry Defence
When HMRC opens an enquiry into an R&D tax relief claim, the response needs more than a general tax reply. It needs technical understanding, cost review, controlled correspondence and evidence that addresses the specific points HMRC has raised.
Bonham & Brook’s enquiry defence service is supported by a specialist compliance team, with senior oversight from Malcolm Henderson, Head of Compliance, who has over 26 years of experience, including time as an HMRC inspector.
Working with an experienced, reputable adviser can help evidence reasonable care, which may reduce penalty exposure or support a no-penalty position if HMRC identifies an inaccuracy.
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Led by former HRMC inspectors
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Managed HMRC engagement
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Evidence-led approach
Facing an HMRC enquiry into your R&D claim?
If HMRC has opened an enquiry into an R&D tax relief claim, Bonham & Brook can review the enquiry letter, the claim position and the evidence available before advising on the next response.
This may include cases where the original claim was prepared internally or by another adviser, subject to an initial review.
What Happens When You Engage Us
When you contact Bonham & Brook about an HMRC enquiry, the first priority is to control communication, understand the request and avoid a rushed response.
Why Us
Why Bonham & Brook
Specialist-led advice, tailored to your business.
Unparalleled expertise
Our team is made up of specialists who are genuinely the best in their field: people who’ve spent years mastering their discipline. That depth means our advice holds up under scrutiny.
Human-centred approach
We build partnerships that last. We integrate with your team, understand your business, and stay commited through the complex moments. That’s earned us clients who come back, year after year.
Ethical Foundation
Compliance is at the core of everything we do. It’s the foundation of how we think and advise. With a stellar in-house compliance team, you can be certain that every recommendation we make is defensible.
Trusted by the best
Leading organisations across industries trust us with their most complex challenges. That reputation is earned through consistent excellence and personable service synonymous with Bonham & Brook.
Case studies
Case Examples of HMRC Enquiry Resolution
Anonymised examples illustrating how we have resolved enquiries for clients across different sectors.
Speak to a Compliance Specialist
If your business has received an HMRC enquiry into an R&D tax relief claim, speak to Bonham & Brook before preparing a response.
Our specialist team is ready to review your HMRC enquiry, defend your R&D tax relief claim and build a response strategy focused on the strongest defensible outcome.
