Dates and deadlines
Bookmark important deadlines
Our clients always receive timely reminders, but if you’d rather keep a note for yourself then you can refer back to this page at any time.
01 March 2024
Corporation tax payment
Corporation tax payment due for year end 31 May 2023, for those companies not liable to pay their liability by instalments.
Advisory fuel rates
New fuel rates come into force.
07 March 2024
Due date for January VAT returns unless exempted.
19 March 2024
Monthly postal PAYE/class 1 NICs/student loan payment
If you pay by cheque through the post, monthly payments due for PAYE, class 1 NICs and student loan deductions from February 2024.
Construction Industry Scheme: monthly return due for period up to 5th of previous month.
21 March 2024
Due date for payment of supplementary declarations for February 2024.
22 March 2024
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.
31 March 2024
End of corporation tax financial year.
End of CT61 quarterly period.
Corporation tax return
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2023 to be submitted to HMRC.