R&D Requires Expertise

The UK offers generous tax reliefs to encourage Research & Development (R&D). However, these benefits are only available when the work carried out meets specific and tightly defined HMRC criteria. A recent tax tribunal case highlighted just how strictly those rules are applied — and how easy it is for a company to fall short.

When an R&D Claim Fails

In the case in question, a company claimed R&D relief for several projects designed to make books from its digital archive available online as curated, searchable resources. HMRC rejected the claim on the grounds that no qualifying R&D had actually taken place.

The company argued that the government’s guidelines allowed for some interpretation — but the Tax Tribunal disagreed, taking a narrow and technical view of the legislation. The court found that:

• The company’s staff, though skilled in their own field, lacked detailed and current expertise in software development and computing.
• The technology used was not novel — it had been implemented in similar ways elsewhere, failing to demonstrate a true advance in science or technology.
• No supporting evidence was provided for employee costs or expenditure.
• No patents or other outputs evidenced genuine innovation.

As a result, the company’s R&D claim was denied. The decision increased its corporation tax liability by more than £50,000.

The tribunal concluded that the company had neither:

• Demonstrated any advance in science or technology, nor
• Provided evidence linking expenditure directly to qualifying R&D activity.

What Is a ‘Competent Professional’?

A key weakness in the company’s argument was its misunderstanding of HMRC’s definition of a “competent professional.”

R&D guidelines make clear that this role “goes beyond having an intelligent interest in the field.”
To qualify, a competent professional must possess up-to-date technical expertise and a proven understanding of the relevant science or technology.

In practice, that means:

• Having recognised qualifications or significant professional experience in the field;
• Being able to identify scientific or technological uncertainties; and
• Being capable of explaining why a solution could not have been easily deduced by a professional in that area.

Without a clearly documented and technically supported claim — ideally backed by a competent professional — HMRC is likely to reject the relief.

Lessons for Businesses Claiming R&D Relief

This case serves as a clear warning that R&D relief requires both evidence and expertise.
HMRC expects detailed project documentation, technical explanations, and cost records that link directly to qualifying activities.

When preparing a claim, you should:

1. Engage a specialist advisor early — ideally before the project begins.

2. Identify qualifying activities and uncertainties in advance.

3. Document the technical work carried out and who performed it.

4. Keep detailed records of staff time and costs.

5. Avoid assuming innovation equals eligibility — commercial improvements alone don’t qualify.

Well-prepared claims supported by clear evidence stand up to scrutiny and reduce the risk of costly rejections or penalties.

How Merranti Can Help

At Merranti Accounting, we help clients navigate the complex rules governing R&D relief. Our specialists assess whether your projects meet the official criteria and prepare robust, compliant claims — maximising the relief available while keeping you protected from error or challenge.

We can also review existing or historic claims to ensure they meet current HMRC standards and advise on any risks or potential exposure.

R&D tax relief remains one of the UK’s most valuable incentives for innovation — but only when applied correctly