CIRD115000 | R&D Tax Reliefs: reformed reliefs: new RDEC: rates
From HM Revenue & Customs · Corporate Intangibles Research and Development Manual
The new merged scheme RDEC only applies to accounting periods beginning on or after 1 April 2024. The new RDEC rates (CTA09/S1042G) are as follows:
| Accounting periods beginning on or after | RDEC Rate | |
| Non ring fence trades | Ring fence trades | |
| 1 April 2024 | 20% | 49% |
These rates apply regardless of when expenditure claimed for in the accounting period was originally incurred.