CT61
End of CT61 quarterly period.
Online self-assessment (PAYE)
Deadline for online submission of self-assessment tax returns for tax year ended 5 April 2020 for HMRC to collect tax through PAYE codes, where they owe less than £3,000.
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.
Intrastat
Due date for payment of supplementary declarations for November 2021.
CIS return
Construction Industry Scheme: monthly return due for period up to 5th of previous month.