Modern accounting
Dates & deadlines
Tax and business calendar
Details of compliance and regulatory deadlines.
19 August 2026
CIS Return
Payments made to subcontractors in the month to 5 August 2026
PAYE, NIC and CIS payment (Postal)
Month-end 5 August 2026
22 August 2026
PAYE, NIC and CIS payment (Electronic)
Month-end 5 August 2026
31 August 2026
VAT Partial Exemption
Annual adjustment due this quarter for 31 May stagger
Corporation Tax Returns
31 August 2025 year ends
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