September 2023

7 September

  • Deadline for VAT returns and payments of Accounting Quarter period ending July 31 2023

19 September

  • Monthly deadline for postal payments of CIS, NICs, and PAYE to HMRC

22 September

  • Monthly deadline for electronic remittance of CIS, NICs, and PAYE to HMRC

30 September

  • Deadline for filing of accounts for accounting period ending 31 December 2022
  • Deadline for Corporation Tax returns for the accounting period ending 30 September 2022