Best children's savings accounts UK 2026

Chandraketu Tripathi

Finance Editor, Kaeltripton

Published 10 May 2026

Last reviewed 10 May 2026

✓ Fact-checked

Banking

TL;DR

Children can hold a Junior ISA with a 2025/26 allowance of £9,000 per tax year, a children's instant-access account, or a children's fixed-rate bond. Interest earned within a Junior ISA is tax-free. Interest on other accounts is taxable but falls within the child's own personal allowance of £12,570. Parents must open accounts for children under seven.

Saving for a child from an early age can build a meaningful pot by the time they reach adulthood. The right account depends on whether you want tax-free growth through a Junior ISA, flexible access through an instant-access account, or a higher fixed rate in exchange for locking money away for a set term.

UK residents can open a Junior Stocks and Shares ISA or a Junior Cash ISA for any child under 18, subject to the annual allowance. Non-ISA children's savings accounts are also widely available and can offer competitive rates, particularly for shorter terms. This guide covers the main account types, the tax position, and what to check before you open an account.

Key facts (2026)

The Junior ISA allowance is £9,000 per tax year for 2025/26, covering both Cash and Stocks and Shares variants combined (HMRC, 2025).
Children have their own personal allowance of £12,570 for 2025/26, so interest on non-ISA accounts is only taxable if it exceeds this threshold (HMRC, 2025/26).
Children aged 16 or 17 can open their own Junior Cash ISA; under-16s require a parent or guardian to open the account on their behalf.
A child cannot hold both a Junior Cash ISA and an adult Cash ISA simultaneously until they turn 18, when the Junior ISA converts to an adult ISA (HMRC).
The FSCS protects eligible deposits up to £85,000 per authorised firm, including children's accounts held at UK-authorised banks and building societies.

Junior ISAs: the tax-free wrapper explained

A Junior ISA shelters savings from income tax and capital gains tax. You can hold a Junior Cash ISA, a Junior Stocks and Shares ISA, or both simultaneously, but the combined contributions across both types cannot exceed £9,000 in a single tax year. The money belongs to the child and cannot be withdrawn until they turn 18, except in cases of terminal illness. At 18 the account automatically converts to an adult ISA and the child gains full control. Only one of each type of Junior ISA can be held per child at any one time, though it is possible to transfer between providers.

Children's instant-access savings accounts

Non-ISA instant-access accounts for children operate similarly to adult easy-access accounts: you can deposit and withdraw without penalty. Rates are variable and change with the Bank of England base rate environment. Interest is paid gross - banks do not deduct tax at source for children - and falls within the child's own personal allowance of £12,570 for 2025/26. If the interest arises from money gifted by a parent and exceeds £100 per year, HMRC's settlements legislation may attribute that income to the parent rather than the child, so consider using a Junior ISA for parent-funded contributions above that threshold.

Fixed-rate children's bonds

Children's fixed-rate bonds lock money away for a set term - typically one to five years - in exchange for a guaranteed rate. They suit savers with a specific goal, such as funding university costs at a known future date. Early access is usually not permitted before maturity, or is subject to a loss-of-interest penalty. Rates on fixed children's bonds have generally been competitive relative to adult equivalents in 2025-26, reflecting building societies' appetite for stable retail funding. Check whether the bond is held inside or outside an ISA wrapper, as this determines the tax position.

How the parental settlement rule affects non-ISA interest

HMRC's settlement rules state that if a parent gifts money to a minor child and the resulting interest exceeds £100 in a tax year, the full interest amount is treated as the parent's income for tax purposes - not the child's. This rule applies per parent: each parent has a separate £100 threshold. The rule does not apply to gifts from grandparents, other relatives, or family friends, making non-parent contributions to children's accounts more tax-efficient in some circumstances. Using a Junior ISA eliminates this issue entirely because income within the ISA wrapper is tax-free regardless of source.

Choosing between a Junior Cash ISA and a Junior Stocks and Shares ISA

A Junior Cash ISA offers capital certainty and a known interest rate - variable or fixed depending on the provider. A Junior Stocks and Shares ISA invests in markets and carries no capital guarantee, but historically equities have outperformed cash over long investment horizons. For children with ten or more years until they access the money, a stocks and shares ISA may be worth considering. For shorter timeframes or where capital preservation is the priority, cash is more appropriate. The Financial Conduct Authority requires providers to make risks clear in all ISA literature.

Related guides

Frequently asked questions

Can a child have both a Junior Cash ISA and a Junior Stocks and Shares ISA?

Yes. A child can hold one Junior Cash ISA and one Junior Stocks and Shares ISA at the same time, but total contributions across both cannot exceed £9,000 in the 2025/26 tax year. You cannot hold two Junior Cash ISAs simultaneously unless you are transferring from one provider to another.

Who can open a children's savings account?

A parent or legal guardian must open a children's savings account for a child under seven. Children aged seven to 15 may be able to operate an account under parental supervision depending on the bank's terms. Children aged 16 and 17 can open their own Junior Cash ISA without parental involvement.

What happens to a Junior ISA when the child turns 18?

A Junior ISA converts automatically to an adult ISA on the child's 18th birthday. The child then has full control over the account and its contents. The conversion does not count against the adult ISA allowance for that tax year - it sits outside the £20,000 adult limit.

Can grandparents contribute to a Junior ISA?

Yes. Anyone can contribute to a Junior ISA, but total contributions from all sources combined - parents, grandparents, friends - cannot exceed £9,000 in a tax year. Grandparent contributions are not subject to the parental settlement rule, so interest arising from grandparent gifts is taxed in the child's name rather than the grandparent's.

Is a Child Trust Fund the same as a Junior ISA?

No. Child Trust Funds were government-funded accounts opened for children born between 1 September 2002 and 2 January 2011. They are no longer available for new applicants but existing accounts remain active. CTF holders can transfer to a Junior ISA at any time; the transfer uses up the CTF balance and does not count against the Junior ISA annual allowance.

How we verified this guide

All figures and rules in this guide were verified against primary regulator and government sources during May 2026. Junior ISA allowance and personal allowance figures are from HMRC's published 2025/26 tax year rates. FSCS protection limits were confirmed at fscs.org.uk. Settlement rule guidance was cross-referenced with HMRC ITTOIA 2005 Part 5 Chapter 5.

Disclaimer: This guide is information only, not financial, legal or tax advice. Rates, allowances and rules change. Always check the primary sources cited and consult a regulated adviser for decisions about your own circumstances.

Primary sources

Last reviewed: May 2026.