Dates and deadlines

31 March 2023

• Corporation tax

  End of corporation tax financial year.

• CT61

  End of CT61 quarterly period.

• Corporation tax return

  Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2022 to be submitted to HMRC.

• Company accounts filing deadline

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

01 April 2023

• Corporation tax payment

  Corporation tax payment due for year ending 30 June 2022

• National Living Wage increase

  National Living Wage will increase to £10.42 an hour for over 23s.

06 April 2023

• Start of tax year 2023/24

  Start of the new tax year.