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 2020 to be submitted to HMRC.
Company accounts filing deadline
Deadline for filing your company tax return is 12 months after your accounting period for corporation tax ends.
Corporation tax payment
Corporation tax payment due for year end 31 May 2020, for those companies not liable to pay their liability by instalments.