Buckinghamshire Building Society Cash ISA Fixed Rate Review

A competitive three-year cash ISA from Buckinghamshire Building Society. It ranks 13th of 33 three-year cash ISAs we track.

Fixed rate · 37 months

4.83%AER

Protection

FSCS£120,000

Min balance

£100

Max balance

£20,000

Access

Until 30.11.2029

Interest paid

Annually/On maturity

Transfers in

Accepted

How It Stacks Up

Ranks 13th of 33

3-year cash ISAs we track

Above average
This account 4.83%
UK CPI (Aug 2026)
3.10%
Pays 1.73% more
Average 3-year cash ISA
4.64%
Pays 0.19% more
Best 3-year cash ISA
5.13%
Pays 0.30% less

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

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Pros and cons

  • Pro: New and existing savers
  • Con: Not flexible: money you withdraw can't be replaced without using more allowance

Good to Know

Aged 18+, single names only. UK residents only; Bucks won't open accounts for anyone who also holds tax residency in another country. Limited issue that may close at any time. At maturity, moves to the Maturity Easy Access Cash ISA if no instructions.

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Estimated returns with Buckinghamshire Building Society's Cash ISA

What you could earn with Buckinghamshire Building Society's Cash ISA Fixed Rate.

Estimated interest

£1,000 saved

£157

At 4.83% AER

£5,000 saved

£783

At 4.83% AER

£10,000 saved

£1,565

At 4.83% AER

£20,000 saved

£3,131

At 4.83% AER

Estimated over the 37-month term, if the rate stays the same and interest is left in. Amounts outside the account's minimum or maximum aren't shown.

2 alternatives to Buckinghamshire Building Society's Cash ISA Fixed Rate

Same type of account, closest on rate.

Common questions about the Cash ISA Fixed Rate

D

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