Paper deadline for self-assessment
Deadline for paper submission of self-assessment tax return for tax year ended 5 April 2023.
Company accounts filing deadline
Deadline for filing your annual accounts is 9 months after your company’s financial year ends.
Corporation tax payment
Corporation tax payment due for year end 31 January 2023, for those companies not liable to pay their liability by instalments.
Electronic PAYE settlements
You must pay any tax and national insurance owed under a PSA by 22 October after the tax year the PSA applies to (19 October if you pay by post).
Quarterly postal PAYE/class 1 NICs payment
Q2 (2023/24) PAYE/NIC payment due where paid by cheque. The cheque must be with HMRC by this date in order to avoid automatic interest charge.