Dates & deadlines
Important accounting dates and deadlines
From self-assessment to corporation tax return deadlines, here is a comprehensive list of important accounting dates and deadlines.
07 December 2023
VAT return
Due date for October VAT returns, unless exempted.
19 December 2023
CIS return
Construction Industry Scheme: monthly return due for period up to 5th of previous month.
Monthly postal PAYE/class 1 NICs/student loan payment
If you pay by cheque through the post, pay PAYE, class 1 NICs, student loan deductions and deductions from payments to subcontractors for the month up to the 5th of this month.
22 December 2023
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.
30 December 2023
Online self-assessment (PAYE)
Deadline for online submission of self-assessment tax returns for tax year ended 5 April 2023 for HMRC to collect tax through PAYE codes, where they owe less than £3,000.
31 December 2023
Corporation tax return
Filing deadline for corporation tax return self-assessment form CT600 for period ended 31 December 2022 to be submitted to HMRC.
Company accounts filing deadline
Deadline for filing your annual accounts is 9 months after your company’s financial year ends.
CT61
End of CT61 quarterly period.
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