Children's Savings

Buckinghamshire Building Society JS100 Review

A children's savings account from Buckinghamshire Building Society. It ranks 53rd of 73 children's savings accounts we track.

Variable rate

2.25%AER

Account type
Notice
Maximum age
15
Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£1

Max balance

£50,000

Access

Notice

Interest paid

Annually

How It Stacks Up

Ranks 53rd of 73

Children's savings accounts we track

Well below average
This account 2.25%
UK CPI (Aug 2026)
3.10%
Pays 0.85% less
Average children's savings
2.92%
Pays 0.67% less
Best children's savings
5.50%
Pays 3.25% less

Inflation: ONS. Averages and best rates: accounts on DepositScout.

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Pros and cons

  • Pro: New and existing savers
  • Con: The rate is variable, so it can go down

Good to Know

Any adult can open and run this account for a child up to 16, and under-7s must have an adult operating it, but from age 7 the child can open and manage it themselves. Each child can only hold one account, in their sole name.

Please verify all details with the provider – see our Disclaimer

See all Buckinghamshire Building Society accounts

Estimated returns with Buckinghamshire Building Society's Children's Savings

What you could earn with Buckinghamshire Building Society's JS100.

Estimated interest

£1,000 saved

£22.50

At 2.25% AER

£5,000 saved

£112

At 2.25% AER

£10,000 saved

£225

At 2.25% AER

£50,000 saved

£1,125

At 2.25% AER

Estimated over one year, if the rate stays the same and interest is left in. Amounts outside the account's minimum or maximum aren't shown.

Work out the tax on your interestSee how much of this interest could be taxed.

Our Expert Opinion on Buckinghamshire Building Society JS100

Jan WatermannCo-Founder, DepositScout

The JS100 is a notice account for children, so it suits parents or grandparents who want to set money aside and are comfortable giving 100 days' notice before each withdrawal. The rate sits at 2.25%, which is 0.85% below CPI inflation of 3.1% as of Aug 2026, meaning the money loses purchasing power in real terms. Since market data is not supplied I cannot say where this sits against the wider children's savings market, and alternatives from Lloyds Bank and Bank of Scotland also offer 2.25%, so there is no obvious rate advantage here over those options.

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2 alternatives to Buckinghamshire Building Society's JS100

Same type of account, closest on rate.

Common questions about the JS100

D

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