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Specialist Tax Advisors

We help UK businesses unlock value, reduce risk and make confident decisions across energy, property, innovation and compliance. From identifying opportunities to navigating complex claims, reliefs and regulatory requirements, our specialists provide the expertise to move businesses forward with confidence. 

 

Find the right service for your business

Select your industry to explore Bonham & Brook’s tax relief, funding, energy and compliance services relevant to businesses in your sector.

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Who We Are

We are Bonham and Brook

Bonham & Brook is a specialist advisory firm working across Energy, Property, Innovation and Compliance. We bring together expertise across our service lines to see the full picture, solve complex challenges and shape stronger futures.

Combining deep technical expertise with a disciplined, compliance-led approach, our work is precise, defensible and built to stand up to scrutiny. Ex-HMRC led, we bring clarity where there is complexity and assurance where the stakes are high.

We build long-term partnerships grounded in transparency, empathy and accountability. We challenge thinking, simplify complexity and give decision-makers the confidence to act with conviction.

Compliance sits at the core of everything we do, protecting value today while powering sustainable progress tomorrow.

Find out more
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1150+ Clients supported
£350m+ Relief secured for clients
1500+ Claims submitted
Our Services

How We Help Businesses Create Value

Energy

Review energy costs, contracts and usage to identify reliefs, procurement value and advisory support.

Property

Identify and document property-related tax reliefs across commercial property, Stamp Tax and land remediation.

Innovation

Identify, evidence and claim innovation-led incentives for qualifying technical activity and IP.

Compliance

Support HMRC-facing and AML compliance matters with specialist enquiry defence and advisory input.

Our Clients

Trusted by Businesses Across the UK

Our Expertise

R&D Tax Relief Specialists

R&D tax relief has been a core part of Bonham & Brook’s expertise from the outset, supported by a continually growing team of experienced technical specialists.

Our in house R&D tax relief specialists manage the entire claim process, giving businesses clarity and confidence from initial assessment through to submission and beyond.

We work closely with your technical teams and competent professionals to understand the R&D undertaken, identify qualifying expenditure and build the technical and financial evidence needed to support a robust, compliant claim.

With technical expertise and compliance at the core, every claim is carefully prepared to stand up to scrutiny, with continued support should HMRC have any questions after submission.

Explore R&D Tax Relief
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Our Co-founders

Raed Hamandi & Haran Mahadevan

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Our connected way of working

The E.P.I.C. Philosophy

Complex challenges rarely exist in isolation. By bringing together expertise across Energy, Property, Innovation and Compliance, Bonham & Brook sees the full picture; identifying opportunities and optimising processes that drive measurable progress.
 
Internally, E.P.I.C. shapes how we work together. We break down silos by design; teams collaborate, perspectives overlap, and expertise builds on expertise.
When someone brings a challenge to the table, they get thinking that's been pressure-tested across our service lines. We move at pace, but we move as one. That cross-functional collaboration isn't a process; it's our culture. It's how we've built a team of people that constantly challenge each other to be better.
 
E.P.I.C. is our daily reminder to trust each other's expertise and take genuine pride in what we deliver together.
 
Who we are

Case Studies

Examples of how we’ve helped businesses secure funding, manage risk, and unlock tax value.

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What our clients say about us

Insights & Guidance

Key insights on tax, innovation, and compliance to support informed decisions.

Need support?

Get in Touch

Speak to a specilist or find the right service for your business.

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