Dates & deadlines
Guides & Resources
19 September 2026
PAYE, NIC and CIS Payment (Postal)
Month-end 5 September 2026.
CIS Return
Payments made to subcontractors in the month to 5 September 2026.
22 September 2026
PAYE, NIC and CIS Payment (Electronic)
Month-end 5 September 2026.
30 September 2026
Economic Crime Levy
Payment due date for accounting periods ending in the financial year to 31 March 2026.
Corporation Tax Returns
30 September 2025 year ends.