If your clients haven’t claimed R&D Tax Credits before (or in the last three years), they now have six months from their year-end to notify HMRC.
What does this mean?
For clients with a financial year-end in September 2024, the deadline to submit an Advanced Notification Form (ANF) is March 31, 2025 – you don’t have long!
Failing to submit the ANF when required will invalidate the claim, regardless of the legitimacy of the R&D activities.
ANF deadlines in 2025
Here are the deadlines to notify HMRC about your client’s intention to claim R&D tax relief:
| Accounting year end | Deadline |
| 30 September 2024 | 31 March 2025 |
| 31 October 2024 | 30 April 2025 |
| 30 November 2024 | 31 May 2025 |
| 31 December 2024 | 30 June 2025 |
| 31 January 2025 | 31 July 2025 |
| 28 February 2025 | 31 August 2025 |
| 31 March 2025 | 30 September 2025 |
| 30 April 2025 | 31 October 2025 |
| 31 May 2025 | 30 November 2025 |
| 30 June 2025 | 31 December 2025 |
Don’t miss your client’s ANF deadline! Contact our team today for expert R&D support.
