Glossary · Savings
ISA allowance
Last reviewed:
Definition: The maximum you can pay into your adult ISAs each tax year — £20,000 for 2026/27.
Junior ISAs have a separate £9,000 allowance per child. Lifetime ISA contributions of up to £4,000 count towards the £20,000 adult limit. Allowances do not roll over to the next tax year if unused.
Primary source: gov.uk/individual-savings-accounts