A Junior Individual Savings Account (Junior ISA or JISA) is a tax-efficient long-term savings vehicle for children resident in the UK under 18. The 2025/2026 annual allowance is £9,000, and contributions cannot be withdrawn until the child turns 18. The market is split between Cash JISAs (offered by banks and building societies) and Stocks and Shares JISAs (offered by investment platforms and fund managers). The contract terms differ significantly between products, and a parent or guardian needs to understand the fee structure, transfer rules, and withdrawal restrictions before opening an account.
What is a Fees and withdrawal rules?
A Junior ISA is a savings or investment account opened by a parent or legal guardian on behalf of a child resident in the UK under 18. There can be one Cash JISA and one Stocks and Shares JISA per child at any time. The account is in the child's name (the registered contact controls it until the child turns 16), and the child gains full control at 16 and access at 18, at which point the JISA converts to an adult ISA. The Individual Savings Account Regulations 1998 (SI 1998/1870) and HMRC ISA guidance set the framework.
Red flags to watch for
Junior ISAs often start with small balances. A flat annual fee (e.g. £30) is more impactful than a percentage fee on a £500 balance. Look for providers with percentage-only fees or no minimum charge for JISAs.
Transfer-out fees of £25-£75 per fund or stock holding can make consolidation expensive. Newer providers have phased these out — check that your chosen provider has zero or minimal transfer fees.
Some Junior ISAs restrict the available funds to in-house options or a small menu. With an 18-year time horizon, fund choice matters significantly to long-run returns.
HMRC rules permit transfers between Cash and Stocks and Shares JISAs. Provider terms that purport to lock you in or charge punitive fees for switching between types may not be enforceable as a matter of the ISA Regulations.
At 16, the child can take over management. At 18, the account converts to an adult ISA in the child's name. Provider terms should clearly explain the transition — and any change in fees or fund availability.
The narrow exceptions to the no-withdrawal rule must be navigated. Provider terms should clearly explain the process and evidence required.
Stocks and Shares JISAs investing in overseas funds may incur FX fees. These should be disclosed in the key features document and fee schedule, not buried in fund-specific terms.
Fee changes should be subject to reasonable notice (typically 30-60 days) and should not be permitted in a way that effectively traps you. Look for a transfer-out window before any fee increase takes effect.
Your legal rights
UK Junior ISA rules are set by the Individual Savings Account Regulations 1998 (SI 1998/1870), as amended, and HMRC's ISA Manager Guidance Notes. Consumer protections include: Financial Services and Markets Act 2000 and FCA Handbook (COBS — Conduct of Business; CASS — Client Asset Sourcebook), Financial Services Compensation Scheme (FSCS) protection up to £85,000 for cash and £85,000 for investments per provider, Financial Ombudsman Service jurisdiction for consumer complaints, and Consumer Duty (FCA PS22/9) requiring providers to deliver good outcomes for retail clients including children's accounts. HMRC publishes JISA limits annually — for the 2025/2026 tax year, the limit is £9,000.
Questions to ask before you sign
- 1What is the annual fee structure — percentage, flat, or both — and how does it apply to small balances?
- 2Is there a transfer-out fee for moving the JISA to another provider?
- 3What is the fund universe — open architecture, in-house, or restricted menu?
- 4Can I transfer between Cash and Stocks and Shares JISA without penalty?
- 5What happens at age 16 and 18 — what changes, and is there continuity of fund holdings?
- 6Are there any overseas-fund FX fees, and how are they disclosed?
- 7What notice does the provider give before changing fees, and what is the transfer window?
- 8Is the provider covered by FSCS, and at what level?
Disclaimer: This guide is for educational purposes only and does not constitute legal advice. Contract law varies by jurisdiction and individual circumstances. Always consult a qualified legal professional before making decisions based on this information.