R&D Tax Relief Update: Key Insights From The Latest RDCF meeting

At Redeem, we continuously monitor developments across the UK’s R&D tax landscape to ensure businesses stay informed and well positioned. Following the latest RDCF meeting in March, we’ve gained several insights that may be valuable for businesses across the Kent Invicta Chamber of Commerce network.

Administrative errors: greater flexibility emerging

One of the more encouraging updates relates to administrative errors within submissions.

HMRC confirmed that claims rejected due to simple mistakes in the Additional Information Form (AIF), such as incorrect UTR entries or errors in accounting period dates, may now be recoverable, with HMRC currently accepting representations in these cases.

There are also indications that this more pragmatic approach could extend to errors within the Claim Notification Form, offering businesses additional flexibility where genuine mistakes occur.

What this means: While accuracy remains critical, there is now a clearer route to remedy minor administrative errors that would previously have resulted in outright rejection.

Advance Assurance pilot launching soon

HMRC confirmed that its Advance Assurance pilot is expected to go live in early May 2026.

During the pilot:

• Companies will be able to seek guidance on two of the four key aspects of their claim
• Full guidance and application details are expected shortly
• Availability may be limited during the initial rollout

What this means: This represents a positive step towards greater certainty upfront, particularly for businesses new to R&D tax relief or undertaking more complex projects.

HMRC’s use of AI: support, not decision making

HMRC confirmed that AI tools (including CoPilot) are now being used internally.

The current position is clear:

• AI is used to support caseworkers, not replace them
• Its primary function is summarisation, helping quickly interpret claims
• Decision making remains firmly with human reviewers

What this means: Well structured, clearly articulated submissions are more important than ever, as summarisation tools rely heavily on the quality and clarity of the information provided.

A shift in compliance focus

With a reduction in SME and smaller claims, HMRC highlighted a shift in compliance activity:

• Fewer high volume enquiries from the Campaigns & Projects team
• Increased focus on larger companies and higher value claims
• Additional resources being allocated to WMBC (Wealthy & Mid sized Business Compliance)

What this means: Larger and more complex claims are likely to face greater scrutiny, reinforcing the need for robust technical and financial documentation.

How Redeem supports Chamber members

At Redeem, we specialise in helping innovative UK businesses navigate this evolving landscape with confidence.

As a strategic partner for business growth, we support companies across:

• R&D Tax Relief
• Grant funding
• Patent Box
• Capital Allowances
• Land Remediation Relief
• Energy tax relief
• Enquiry support

Our approach is built around:

• Senior, hands on expertise
• Reduced client time commitment
• Clear, structured submissions aligned with HMRC guidelines

With HMRC increasing scrutiny and evolving its processes, getting claims right has never been more important.

Supporting the Kent business community

We’re proud to be part of the Kent Invicta Chamber network and to support its members with practical, informed guidance on innovation funding.

If you’re unsure whether your projects qualify, concerned about recent changes, or looking to improve your current R&D approach, we’re always happy to have a conversation.

To explore your eligibility or discuss your current position, click the the link to get in touch with Redeem and a specialist will contact you at a time that suits you.