22 October 2026 - Deadline for electronic
remittance of PAYE, NICs and CIS to HMRC,
including if you have a PAYE Settlement
Agreement (PSA) pay tax and Class 1B NIC.
28 October 2026 – Autumn Budget
31 October 2026 - Deadline for filing Paper
Income Tax Return with HMRC and deadline for
submitting tax return if you want HMRC to
calculate your tax liability.
31 October 2026 - Deadline for filing of
accounts with Companies House for accounting
periods ended 31 January 2026.
31 October 2026 - Corporation Tax returns due
for accounting periods ended 31 October 2025.
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