R&D tax relief claimants warned over 30 June notification deadline
Companies with a December year end that are considering making a claim for R&D tax relief for the year ended 31 December 2025 may need to notify HMRC of their intention to claim by 30 June 2026.
HMRC now requires certain businesses to submit a mandatory ‘pre-claim notification form’ within six months of the end of the accounting period if they intend to make an R&D tax relief claim.
The advance notification requirement typically applies where: