Dates & 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.

What we’ll do for you

Find out more about how we help businesses in South West London and beyond and start building the right package of support to nurture your business.