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.
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