HMRC statistics – our commentary

HMRC has provided information on the number of companies claiming R&D tax relief and Patent Box projected for the year 2024-25. The total value of R&D tax relief is still projected to be nearly £8.2bn and the value of Patent Box relief is projected at £2.3bn.

Overall, the number of R&D claims has halved from its peak in 2021

This release further reflects the changes made in the R&D relief reforms first announced at the Autumn Statement 2022, and HMRC’s hardline approach that really took hold in 2023.

The biggest headline is that the number of claims has fallen dramatically from the historical high of 86,000 companies claiming in 2021. Latest numbers for 2025 suggest that this has more than halved to 40,325. There are 6,625 fewer companies claiming this year than in the previous year.

Why are SMEs claiming R&D tax relief but not Patent Box?

Here at Source Advisors, we know our SME clients are innovating every day, resulting in significant rewards under the R&D tax relief scheme. Unfortunately we don’t see those same companies capturing and commercialising that innovation with an IP strategy or through a patent. The barriers could be:

Source Advisors can help your business optimise the value of your R&D through tax relief schemes, including the merged RDEC scheme and the Enhanced R&D Intensive Support (ERIS) scheme.

We work with businesses of all sizes to prepare their Patent Box claims, and we see firsthand how the relief fuels further investment in R&D and patent filings.

HMRC Statistics