Corporation tax
End of corporation tax financial year.
End of corporation tax financial year.
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2017 to be submitted to HMRC.
Deadline for filing your company tax return is 12 months after your accounting period for corporation tax ends.
End of CT61 quarterly period.
Government will not extend disincorporation relief beyond the 31 March 2018 expiry date.