Barclays Reward ISA Review

A cash ISA from Barclays. It ranks 80th of 137 cash ISAs we track.

Variable rate

2.75%AER

Protection

FSCS£120,000

Min balance

£1

Max balance

£10,000,000

Access

Instant

Interest paid

Monthly

Transfers in

Accepted

Barclays is also paying £300 to switch your current account.

See the switch offer

Rate Tiers

No withdrawals that month

2.75%AER

Higher rate applies when no withdrawals or ISA transfers-out are made since last interest payment

1+ withdrawal(s) that month

0.85%AER

Lower rate applies when one or more withdrawals or ISA transfers-out are made since last interest payment

How It Stacks Up

Ranks 80th of 137

Cash ISAs we track

Below average
This account 2.75%
UK CPI (Aug 2026)
3.10%
Pays 0.35% less
Average cash ISA
2.98%
Pays 0.23% less
Best cash ISA
4.87%
Pays 2.12% less

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

A better-paying alternative

Trading 212 bank logo

Trading 212

Cash ISA

4.60%

AER

  • Pays 1.85% more than this Barclays account
  • Includes a 1.00% bonus for 12 months, then 3.60%
Compare Cash ISAs

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A Good Fit For

  • Pro: New and existing savers
  • Pro: Savers who want instant access
  • Pro: Savers who want a monthly income

Worth Weighing Up

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

Good to Know

Account can be opened and managed via the Barclays app or Online Banking; branch appointments are also available. Minimum deposit is £1, with a maximum account limit of £10 million.

Please verify all details with the provider – see our Disclaimer

See all Barclays accounts

Estimated returns with Barclays' Cash ISA

What you could earn with Barclays's Reward ISA.

Estimated interest

£1,000 saved

£27.50

At 2.75% AER

£5,000 saved

£138

At 2.75% AER

£10,000 saved

£275

At 2.75% AER

£10,000,000 saved

£275,000

At 2.75% 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 Barclays Reward ISA

Jonny PeaseCo-Founder, DepositScout

The Barclays Reward ISA pays 2.75%, but that headline rate only applies in months where you make no withdrawals or ISA transfers out - touch the money and the rate collapses to 0.85% for that month. At 2.75% it sits below the cash ISA market average and 2.37% behind the market leader at 5.12%, and it is 0.35% below August 2026 CPI of 3.1%, so your savings lose real value. If you want instant-access flexibility without that penalty, Moneybox's Open Access Cash ISA pays 3.80%.

Compare Cash ISAs

2 alternatives to Barclays's Reward ISA

Same type of account, closest on rate.

Common questions about the Reward ISA

D

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Nationwide FlexSaver Rate Down
4.20% AER
4.75%
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