Cash ISA

NatWest Fixed Rate ISA 1 Year Review

A competitive one-year cash ISA from NatWest, with a £1,000 minimum deposit. It ranks 12th of 47 one-year cash ISAs we track.

Fixed rate · 1 year

4.75%AER

Rate checked Oct 2026Got this account? Leave a review

Protection

FSCS£120,000

Min balance

£1,000

Max balance

£20,000

Access

1 Year

Interest paid

Annually

Transfers in

Accepted

NatWest is also paying up to £500 to switch your current account.

See the switch offer

How It Stacks Up

Ranks 12th of 47

1-year cash ISAs we track

Above average
This account 4.75%
UK CPI (Aug 2026)
3.10%
Pays 1.65% more
Average 1-year cash ISA
4.37%
Pays 0.38% more
Best 1-year cash ISA
4.92%
Pays 0.17% less

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

Compare cash ISAs

A Good Fit For

  • Pro: New and existing savers

Worth Weighing Up

  • Con: You need at least £1,000 to open it
  • Con: Not flexible: money you withdraw can't be replaced without using more allowance

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Estimated returns with NatWest's Cash ISA

What you could earn with NatWest's Fixed Rate ISA 1 Year.

Estimated interest

£1,000 saved

£47.50

At 4.75% AER

£5,000 saved

£238

At 4.75% AER

£10,000 saved

£475

At 4.75% AER

£20,000 saved

£950

At 4.75% 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 NatWest Fixed Rate ISA 1 Year

Jonny PeaseCo-Founder, DepositScout

NatWest's Fixed Rate ISA pays 4.75% for one year, which sits near the market average for Cash ISAs and trails the category leader by 0.37%. It does beat inflation by 1.65% against August 2026 CPI of 3.1%, so your money grows in real terms. The £1,000 minimum and £20,000 cap are worth noting, and early closure charges may apply if you need out before maturity. If you want a marginally better rate, Tandem Bank's 1 Year Fixed Rate Cash ISA pays 4.76%.

Compare Cash ISAs

2 alternatives to NatWest's Fixed Rate ISA 1 Year

Same type of account, closest on rate.

Common questions about the Fixed Rate ISA 1 Year

D

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