Glossary · Savings

Junior ISA

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Content updated: 26 May 2026

By the Money Guide editorial team · Editorial responsibility: Kaiser Khan, Editorial Director · How we check facts

Definition: A tax-free savings or investment account for under-18s, with an annual allowance of £9,000 across cash and stocks & shares combined.

Opened by a parent or guardian; the child takes over management at 16 and ownership at 18 when the funds roll into an adult ISA. Anyone can contribute up to the annual cap.

Primary source: gov.uk/junior-individual-savings-accounts

More Savings terms

AER (Annual Equivalent Rate)
Cash ISA
ISA (Individual Savings Account)
ISA allowance
Lifetime ISA (LISA)
NS&I (National Savings & Investments)

← All glossary terms