Compliance dates and deadlines
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.
01 Apr 2024
Corporation tax payment
Corporation tax payment due for year end 30 June 2023, for those companies not liable to pay their liability by installments.
05 Apr 2024
P46 (car) electronic
Quarter to 5 April 2024.
05 Apr 2024
National Insurance Deadline
Normal deadline to pay voluntary Class 2 or Class 3 NI for 2017/18.
05 Apr 2024
Tax Year Ends
2023/24 tax year ends.
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