1 September 2026 – Due date for corporation tax due for the year ended 30 November 2025.
19 September 2026 – PAYE and NIC deductions due for month ended 5 September 2026. (If you pay your tax electronically the due date is 22 September 2026)
19 September 2026 – Filing deadline for the CIS300 monthly return for the month ended 5 September 2026.
19 September 2026 – CIS tax deducted for the month ended 5 September 2026 is payable by today.
1 October 2026 – Due date for Corporation Tax due for the year ended 31 December 2025.
19 October 2026 – PAYE and NIC deductions due for month ended 5 October 2026. (If you pay your tax electronically the due date is 22 October 2026)
19 October 2026 – Filing deadline for the CIS monthly return for the month ended 5 October 2026.
19 October 2026 – CIS tax deducted for the month ended 5 October 2026 is payable by today.
31 October 2026 – Latest date you can file a paper version of your 2025-26 self-assessment tax return.
by Admin
Share
STAY IN THE LOOP
Subscribe to our free newsletter.
Business confidence across the UK is showing signs of improvement, although many smaller businesses remain reluctant to commit money to new investment.
The latest British Chambers of Commerce
Late payment of invoices remains one of the most persistent problems facing UK small businesses, and recent research suggests the situation is becoming increasingly difficult. 60% of UK small and
HMRC’s latest Corporation Tax statistics show that receipts from corporate taxes passed £100 billion for the first time in 2025-26.
The main statistics are as follows:
Total receipts from all
Businesses using the Trader Support Service (TSS) to move goods between Great Britain and Northern Ireland need to prepare for a new platform launching soon. From 20 October 2026, all goods movements