R&D tax relief is one of the most valuable government incentives available to UK businesses — yet thousands of eligible companies never claim a penny. Whether you are trying to understand the basics, navigate HMRC’s reformed schemes, protect your claim from scrutiny, or simply work out whether your company qualifies, these guides cover everything you need to know. Written by the team at Menlo and updated for the 2024 merged scheme and HMRC’s latest compliance requirements.

Guides & Analysis

All Resources

Guide

What Is R&D Tax Relief? A Complete Guide for UK Businesses

Everything you need to know about R&D tax relief in the UK — who qualifies, what costs count, and how the 2024 merged scheme works in practice.

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Guide

Why Your Business Should Be Claiming R&D Tax Credits

HMRC paid out £7.6 billion in R&D relief in 2022/23 — here’s why your business should be part of that, and what you might be leaving on the table.

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Guide

The 5 Biggest Challenges When Making an R&D Tax Claim

HMRC scrutiny is higher than ever. Here are the five most common mistakes companies make when preparing an R&D claim — and how to avoid every one of them.

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Analysis

HMRC’s R&D Tax Reforms: What UK Businesses Need to Know in 2025

The merged scheme launched in April 2024, replacing the old SME and RDEC schemes. Here’s a plain-English breakdown of what changed and what it means for your next claim.

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