Important Updates you Need to Know for your HMRC Submission

Are you submitting an R&D Tax Relief claim to HMRC?

Read time
1 minute

Are you submitting an R&D Tax Relief claim to HMRC?

From 1st August 2023, HMRC are requiring that R&D Tax Relief submissions will need to be accompanied by an ‘additional information form’ containing detailed information about your projects. Don’t worry as we take care of this paperwork for you, but we are anticipating that HMRC will incur significant delays in processing claims, therefore we advise you submit your claim this month to avoid delays to your benefit.

If you’re curious to know what HMRC are expecting to see in the form, you can find out what you need to prepare here.

If you have any questions about these requirements, reach out to a member of our team at rrabess@rck.partners.

Explore other articles

The Top 5 Mistakes Companies Make When Claiming R&D Tax Credits in the UK

Discover the 5 most common mistakes companies make when claiming R&D tax credits and how to ensure your claim meets HMRC’s requirements.

October 17, 2025
9 minute read

Get to know Group CEO, Sophie Spells

We caught up with Sophie to discuss her professional career, personal life and the driving reasons behind becoming RCK’s Group CEO.

October 14, 2025
5 minutes

RCK Partners Corporate Announcement: RCK appoints Sophie Spells as new Group CEO

RCK Partners announces the appointment of Sophie Spells as RCK’s Group Chief Executive Officer. Sophie will step into the role of Group CEO, having previously served as RCK’s General Counsel and Head of Legal, Data and Compliance.

October 1, 2025
3 minutes

Book your free audit