17/10/2026
📅 Key Tax Dates & Deadlines! October – November 2026 🗓️
Keeping track of important tax dates is essential for staying compliant and avoiding unnecessary penalties. With several key deadlines coming up in October and November, now is the time to get organised and ensure everything is in order. Here are the important dates to add to your diary! 👇
🔹 19TH OCT – PAYE & NIC deductions, and CIS return and tax, for month to 05/10/2026 (due 22 October if you pay electronically). These are also the due dates for Class 1B NICs due under PAYE Settlement Agreements.
🏛️ 28TH OCT – Chancellor John Healey delivers Autumn Budget 2026.
📄 31ST OCT – Paper Self Assessment tax returns for 2025/26.
🏢 1ST NOV – Corporation Tax for year to 31/01/2026, unless quarterly instalments apply.
📊 7TH NOV – Deadline for the second Quarterly Update required under MTD for Income Tax.
🔹 19TH NOV – PAYE & NIC deductions, and CIS return and tax, for month to 05/11/2026 (due 22 November if you pay electronically).
💼 How Can We Help?
Keeping up with tax deadlines can be challenging, but you don’t have to manage everything alone. We’re here to help you stay organised, understand your tax obligations and meet important deadlines with confidence.
📩 Get in touch with our team to find out how we can support you and help keep your tax affairs on track.