When do common recurring tax deadlines fall? What other tax significant events are upcoming? What do I need to remember this month? 

This is a freeview 'At a glance' rolling calendar of common recurring tax deadlines, significant new tax measures and other tax significant events. 

December 2025

Tax deadlines

Date

Deadline

1

Corporation Tax payment: 28 February 2025 year ends

1

Advisory fuel rates for company car drivers: new rates published

7

VAT return submission and payment (online): month or quarter-end 31 October 2025

19

PAYE, NIC and CIS payment (postal): month-end 5 December 2025

19

CIS return: payments made to subcontractors in the month to 5 December 2025

22

PAYE, NIC and CIS payment (electronic): month-end 5 December 2025

30

Self Assessment: payment of 2024-25 tax via PAYE coding out online return submission 

31

Corporation Tax returns: 31 December 2024 year ends

Notes

For announcements made at the 2025 Autumn Budget and 2025 Spring Statement, see: 

For more key tax announcements in greater detail see: 

This calendar does not include: