Leek Building Society Junior Cash ISA Review3.85% AER (Sep 2026)

Junior ISA from Leek Building Society

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Protection

FSCS

Up to £120,000

Min balance

£1

Max balance

£9,000

Access

Locked until 18

Interest paid

Annually

Transfers in

Accepted

Who Is This For

Learn more about Leek Building Society

New and existing savers
Savers happy with a £9,000 cap

Additional Info

Post or branch only - cannot be opened or managed online. On the child's 18th birthday the account automatically converts to a Leek Building Society Easy Access Cash ISA in the child's name.

Please verify all details with the provider – for more info read our Disclaimer

Estimated returns with Leek Building Society's Junior ISA

Want to know how much interest you will receive with Leek Building Society's Junior Cash ISA?

Estimated interest

£1,000 saved

£38.50

At 3.85% AER

£5,000 saved

£192

At 3.85% AER

£9,000 saved

£346

At 3.85% AER

Estimated over one year, assuming the rate stays the same and interest stays in the account. Amounts outside this account's minimum or maximum balance are left out.

Our Expert Opinion on Leek Building Society Junior Cash ISA

Leek Building Society's Junior Cash ISA pays 3.85% AER, calculated daily and credited on 1 January each year, which makes it a solid long-term tax-free wrapper for a child's savings. It accepts transfers in from existing Junior ISAs and is open to new and existing customers alike, with deposits starting from just £1 up to the annual £9,000 JISA allowance. The main catch is that the money is completely locked away until the child turns 18, with the only exceptions being terminal illness or death, so this suits parents who are genuinely saving for the long term and won't need to touch the funds. Beverley Building Society offers the same 3.85% rate if you want a close alternative.
Jan Watermann (Co-Founder)DepositScout