Teachers Building Society Single Access Cash ISA for Teachers Review

One of the best-paying instant access cash ISAs, from Teachers Building Society. It ranks 11th of 132 instant access cash ISAs we track.

Variable rate

4.25%AER

Protection

FSCS£120,000

Min balance

£100

Max balance

£250,000

Access

Limited withdrawals

Interest paid

Yearly

Transfers in

Accepted

Rate Tiers

1 withdrawal or fewer per year

4.25%AER

More than 1 withdrawal per year

1.25%AER

How It Stacks Up

Ranks 11th of 132

Instant access cash ISAs we track

Among the best
This account 4.25%
UK CPI (Aug 2026)
3.10%
Pays 1.15% more
Average instant access cash ISA
2.93%
Pays 1.32% more
Best instant access cash ISA
4.87%
Pays 0.62% less

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

A better-paying alternative

Trading 212 bank logo

Trading 212

Cash ISA

4.80%

AER

  • Pays 0.55% more than this Teachers Building Society account
  • Includes a 1.20% bonus for 12 months, then 3.60%
Compare Cash ISAs

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A Good Fit For

  • Pro: New and existing savers

Worth Weighing Up

  • Con: The rate is variable, so it can go down
  • Con: Not flexible: money you withdraw can't be replaced without using more allowance

Good to Know

1 penalty-free withdrawal permitted per calendar year

Please verify all details with the provider – see our Disclaimer

See all Teachers Building Society accounts

Estimated returns with Teachers Building Society's Cash ISA

What you could earn with Teachers Building Society's Single Access Cash ISA for Teachers.

Estimated interest

£1,000 saved

£42.50

At 4.25% AER

£5,000 saved

£212

At 4.25% AER

£10,000 saved

£425

At 4.25% AER

£250,000 saved

£10,625

At 4.25% 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.

Our Expert Opinion on Teachers Building Society Single Access Cash ISA for Teachers

Jonny PeaseCo-Founder, DepositScout

This account is aimed squarely at teachers, so most savers will not qualify. The 4.25% rate beats CPI inflation by 1.15% (Aug 2026 CPI: 3.1%), but it sits below the Cash ISA market average and 1.00% behind the market leader at 5.25%. The real catch is the withdrawal rule: make more than one withdrawal per year and your rate collapses to 1.25%. If you want similar flexibility without that cliff-edge penalty, Charter Savings Bank's Easy Access Cash ISA pays 4.26%.

Compare Cash ISAs

2 alternatives to Teachers Building Society's Single Access Cash ISA for Teachers

Same type of account, closest on rate.

Common questions about the Single Access Cash ISA for Teachers

D

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