Compliance dates and deadlines
19 Mar 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.
19 Mar 2024
CIS return
Construction Industry Scheme: monthly return due for period up to 5th of previous month.
21 Mar 2024
Intrastat
Due date for payment of supplementary declarations for February 2024.
22 Mar 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 Mar 2024
Corporation tax
End of corporation tax financial year.
31 Mar 2024
CT61
End of CT61 quarterly period.
31 Mar 2024
Corporation tax return
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 March 2023 to be submitted to HMRC.
31 Mar 2024
Company accounts filing deadline
Check your company's financial year-end. The deadline for both filing your annual accounts and paying your corporation tax bill is usually 9 months after the end of your company's financial year, while your corporation tax return is due 12 months after the end of the accounting period it covers.
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