Cash ISACompare 1 Year Fixed Rate Cash ISAs

Progressive Building Society Online 1 Year Double Access Cash ISA Review

A one-year cash ISA from Progressive Building Society. It ranks 29th of 60 one-year cash ISAs we track.

Variable rate · 1 year

4.50%AER

Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£1

Max balance

£20,000

Access

Limited withdrawals

Interest paid

Yearly

Transfers in

Accepted

How It Stacks Up

Ranks 29th of 60

1-year cash ISAs we track

Just above average
This account 4.50%
UK CPI (Aug 2026)
3.10%
Pays 1.40% more
Average 1-year cash ISA
4.43%
Pays 0.07% more
Best 1-year cash ISA
4.97%
Pays 0.47% less

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

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A Good Fit For

  • Pro: New and existing savers
  • Pro: Flexible: take money out and put it back in the same tax year without using more allowance

Worth Weighing Up

  • Con: The rate is variable, so it can go down

Good to Know

You can make 2 withdrawals per tax year (6th April - 5th April) without loss of interest.

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Estimated returns with Progressive Building Society's Cash ISA

What you could earn with Progressive Building Society's Online 1 Year Double Access Cash ISA.

Estimated interest

£1,000 saved

£45.00

At 4.5% AER

£5,000 saved

£225

At 4.5% AER

£10,000 saved

£450

At 4.5% AER

£20,000 saved

£900

At 4.5% 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 Progressive Building Society Online 1 Year Double Access Cash ISA

Jan WatermannCo-Founder, DepositScout

Progressive Building Society's Online 1 Year Double Access Cash ISA pays 4.50%, which sits near the market average for cash ISAs and 0.75% behind the category leader at 5.25%. It does beat August 2026 CPI of 3.1% by 1.40%, so your money grows in real terms. The cap of £20,000 is simply the annual ISA allowance, and the double-access feature means withdrawals are limited, so this suits savers who want flexibility but can live with that restriction. Tembo and Leek Building Society both offer 4.55% if you want a slightly better fixed rate.

Compare Cash ISAs

2 alternatives to Progressive Building Society's Online 1 Year Double Access Cash ISA

Same type of account, closest on rate.

Common questions about the Online 1 Year Double Access Cash ISA

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