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The UK’s R&D tax relief regime has entered a new phase, one that increasingly requires real-time data and decision making, rather than retrospective claim preparation.
Recent legislative reform, most notably through the Finance Act 2024 and the introduction of the merged R&D scheme from 1 April 2024, has fundamentally changed not just how claims are calculated, but how businesses should approach R&D tax relief altogether.
At the same time, HMRC scrutiny has intensified. Enquiries are more frequent, more detailed, and increasingly focused on the integrity of both the technical narrative and the supporting financial data.
For Heads of Tax, this creates a clear challenge. Claims must not only be accurate, but resilient. More importantly, the business must be positioned correctly before the claim is prepared.
From retrospective claims to real-time decision making
Historically, R&D tax relief has been treated as a retrospective exercise. Qualifying activity is identified and a claim is compiled after the fact.
That approach is becoming increasingly outdated, and is now being replaced by a more real-time model, where decisions made during the year directly shape the strength of a claim.
The restriction on overseas expenditure is a clear example. This is not simply a technical adjustment. It is a deliberate policy signal. Businesses that have relied on overseas subcontractors or externally provided workers now face a structural shift in how relief is accessed.
For many organisations, overseas resource remains a commercial necessity. However, the removal of relief changes the economics.
The question is no longer whether overseas R&D is viable, but whether businesses are comfortable funding it without tax support.
As a result, Heads of Tax are increasingly involved in decisions about where R&D is undertaken, how it is resourced, and whether elements of activity should be brought onshore. These are not issues that can be addressed at year end. They require input earlier in the lifecycle.
“We are increasingly seeing R&D tax considerations shaping operational decisions in real time, particularly around how and where innovation activity is delivered.”Mark Smith, Managing Director Ayming UK
What forward looking advice should look like
Effective advisers are now operating in real-time, supporting businesses as decisions are made, rather than reviewing them after the fact. They are helping to identify qualifying R&D as it happens and ensuring that documentation is created contemporaneously, rather than reconstructed later.
This reflects HMRC’s expectations. While there is no prescribed format for record keeping, businesses must retain sufficient evidence to support their claims. HMRC may request anything reasonably needed to validate a claim during a compliance check.
This reflects a broader shift towards real-time scrutiny and validation, as Benjamin Craig, Head of Tax Technical at Ayming, notes:
“We are seeing HMRC place far greater weight on how and when evidence is created, with contemporaneous documentation increasingly influencing how quickly an HMRC enquiry can be closed.”Benjamin Craig, Associate Director & Head of Technical, Ayming UK
In practice, documentation created at the time of the activity carries significantly more weight than retrospective explanations.
Forward looking advisers also work beyond the tax function. They engage with commercial and operational teams to ensure that decisions around resourcing and contracting reflect the current rules.
The introduction of the merged, RDEC style scheme reinforces this shift. There is greater visibility around how relief is calculated and reported, with implications for forecasting, budgeting, and internal performance measures.
A different question for Heads of Tax
The key question is no longer whether your adviser understands the rules.
It is whether their advice is helping your business respond to them. Heads of Tax should be asking themselves of their advisers:
- Are they involved early enough to influence outcomes?
- Are they helping to reduce risk before submission?
- Are they enabling informed decision making, rather than simply reporting after the fact?
In the current environment, the value of an adviser is defined less by what they include in a claim, and more by when they get involved.
R&D tax relief remains a valuable incentive for UK businesses. However, the environment in which it operates has changed.
Increasingly, the strength of a claim is determined long before it is submitted.
