Dates and deadlines

Avoid the panic of short deadlines or, worse, missed ones with our calendar of key events in the accounting year, including upcoming changes to legislation and cutoff dates for tax return submissions. From corporation tax to VAT, we’ve got all the milestones covered, to bring peace of mind by heading off investigations and fines. We’ll also send these by email if you’re subscribed to our fortnightly newsletter.

19 September 2021

  • CIS return

    Construction Industry Scheme: monthly return due for period up to 5th of previous month.

  • Monthly postal PAYE/class 1 NICs/student loan payment

    If you pay by cheque through the post, pay PAYE, class 1 NICs, student loan deductions and deductions from payments to subcontractors for the month up to the 5th of this month.

21 September 2021

  • Intrastat

    Due date for payment of supplementary declarations for August 2021.

22 September 2021

  • Monthly electronic PAYE/class 1 NICs/student loan payment

    If paying electronically, pay PAYE, class 1 NICs, student loan deductions and deductions from payments to subcontractors for the month up to the 5th of this month.

30 September 2021

  • CT61

    End of CT61 quarterly period.

  • Company accounts filing deadline

    Deadline for filing your annual accounts is 9 months after your company’s financial year ends.

  • Corporation tax return

    Filing deadline for corporation tax return self-assessment form CT600 for period ended 30 September 2020 to be submitted to HMRC.

01 October 2021

  • Corporation tax payment

    Corporation tax payment due for year end 31 December 2020, for those companies not liable to pay their liability by instalments.

05 October 2021

  • Income tax and capital gains

    Taxpayers who do not receive a self-assessment tax return to complete must notify HMRC by 5 October if they had income or capital gains in the previous tax year on which further tax is due.

07 October 2021

  • VAT return

    Due date for August VAT returns unless exempted.

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