ISA rules
You can save up to £20,000 a year across all ISAs (Lifetime ISA up to £4,000 of that). Interest, dividends and gains are tax-free. From 6 April 2027 the cash ISA limit is due to fall to £12,000 for under-65s, with the full £20,000 still available for stocks and shares.
FAQ
Can I put £20,000 in a cash ISA in 2026/27?
Yes. The £12,000 cash limit for under-65s is planned from April 2027.
Sources (checked 6 Nov 2026): GOV.UK Individual Savings Accounts; Autumn Budget 2025.