Key money dates

Deadlines and changes for the months ahead, based on announced dates. Items marked expected have not been confirmed.

• 1 Oct 2026New Energy Price Cap (£1,723 typical) and 0% VAT on electricity begin
• 5 Oct 2026Deadline to register for self-assessment if 2025/26 is your first year
• 31 Oct 2026Paper self-assessment deadline; Halifax online banking moves to the Lloyds app
• 5 Nov 2026Bank of England base rate decision
• Late Nov 2026Ofgem announces the January to March 2027 Price Cap (expected)
• 9 Dec 2026Club Lloyds £200 switch offer ends
• 30 Dec 2026Self-assessment deadline to have tax under £3,000 collected through your tax code
• 1 Jan 2027New Energy Price Cap period begins
• 31 Jan 2027Online self-assessment deadline and payment due for 2025/26
• 31 Mar 20270% VAT on electricity ends unless extended at the Budget
• 1 Apr 2027Council tax, water bills and National Living Wage change
• 5 Apr 2027Tax year ends: last day to use the full £20,000 cash ISA allowance if under 65; last day to backdate Marriage Allowance to 2022/23
• 6 Apr 2027New tax year: cash ISA limit becomes £12,000 for under-65s