Resources
Tax and business calendar
31 March 2024
Corporation tax
End of corporation tax financial year.
CT61
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.
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 April 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 April 2024
P46 (car) electronic
Quarter to 5 April 2024.
National Insurance Deadline
Normal deadline to pay voluntary Class 2 or Class 3 NI for 2017/18.
Tax Year Ends
2023/24 tax year ends.
06 April 2024
New Tax Year
2024/25 tax year begins.
07 April 2024
VAT return submission and payment (online)
Month-end or quarter 28 February 2024