CT61
End of CT61 quarterly period.
Corporation tax return
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2021 to be submitted to HMRC.
Corporation tax
End of corporation tax financial year.
Monthly electronic PAYE/class 1 NICs/student loan payment
If paying electronically, pay PAYE, class 1 NICs, student loan deductions and deductions from payments to subcontractors for the month up to the 5th of this month.
Intrastat
Due date for payment of supplementary declarations for February 2022.