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  • R&D tax credits - additional information form

    I submitted R&D tax credit claim for the period ending 29th February 2024 on 12th June 2024, and the Additional Information form on 24th May 2024. I have the submission reference number for the Additional Information. However, we received a letter from HRMC that the claim is not accepted due to missing additional information form. I sent e-mail to HMRC R&D team more than 40 days ago, however, no response. Is there anyone I can contact form technical side to get this fixed ?