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.


August 2026

 

Tax deadlines

Date

Deadline

1

Corporation Tax payment: 31 October 2025 year ends

2

P46(car) electronic or paper: quarter to 5 July 2026

5

Employment intermediaries: report for the quarter to 5 July 2026

5

Employment intermediaries: remove a report for the quarter to 5 April 2026

7

VAT return payment: month or quarter-end 30 June 2026

7

VAT return submission (online): month or quarter-end 30 June 2026

7 MTD quarterly return submission: month end 30 June 2026

19

PAYE, NIC and CIS payment (postal): month-end 5 August 2026

19

CIS return: payments made to subcontractors in the month to 5 August 2026

22

PAYE, NIC and CIS payment (electronic): month-end 5 August 2026

31

Corporation Tax returns: 31 August 2025 year ends

31

VAT partial exemption: annual adjustment due this quarter for 31 May stagger 

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: