Answers · UK 2025/26
What is the ISA allowance for 2026/27?
The overall ISA allowance for 2026/27 is £20,000, which can be spread across cash ISAs, stocks and shares ISAs, innovative finance ISAs and Lifetime ISAs in any combination, subject to the £4,000 Lifetime ISA sub-limit.
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The overall Individual Savings Account (ISA) allowance for 2026/27 is £20,000 per person, unchanged from previous years. This allowance can be split across the different types of adult ISA in whatever combination you choose -- cash ISA, stocks and shares ISA, innovative finance ISA and Lifetime ISA -- as long as the total paid in across all of them does not exceed £20,000 in the tax year. The one restriction within this overall limit is the Lifetime ISA, which has its own sub-limit of £4,000 a year, counted toward (not in addition to) the £20,000 total. All growth, interest and dividends earned within any ISA are completely free of Income Tax, dividend tax and Capital Gains Tax, making ISAs one of the most straightforward tax-efficient wrappers available to UK savers and investors. Unused ISA allowance does not carry over to the following tax year -- if you do not use some or all of your £20,000 allowance by 5 April, that unused portion is lost permanently, and a fresh £20,000 allowance becomes available from 6 April. Junior ISAs, available for under-18s, have a separate £9,000 annual allowance that does not count toward the adult £20,000 limit, and money paid into a Junior ISA cannot generally be withdrawn until the child turns 18.
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This answer is informational only and does not constitute financial, tax or legal advice. Figures are for the 2025/26 UK tax year. See our methodology and sources.