Cash ISA

NatWest Fixed Rate ISA 2 Year Review

A competitive two-year cash ISA from NatWest, with a £1,000 minimum deposit. It ranks 13th of 43 two-year cash ISAs we track.

Fixed rate · 2 years

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

At maturity only

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 13th of 43

2-year cash ISAs we track

Above average
This account 4.75%
UK CPI (Aug 2026)
3.10%
Pays 1.65% more
Average 2-year cash ISA
4.49%
Pays 0.26% more
Best 2-year cash ISA
5.05%
Pays 0.30% 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: Your money is locked in for 2 years
  • 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 2 Year.

Estimated interest

£1,000 saved

£97.26

At 4.75% AER

£5,000 saved

£486

At 4.75% AER

£10,000 saved

£973

At 4.75% AER

£20,000 saved

£1,945

At 4.75% AER

Estimated over the 24-month term, 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 2 Year

Jan WatermannCo-Founder, DepositScout

NatWest's Fixed Rate ISA 2 Year pays 4.75%, which sits near the market average for Cash ISAs and is 0.37% behind the current market leader at 5.12%. That said, 4.75% does beat August 2026 CPI of 3.1% by 1.65%, so your money is at least growing in real terms. The account suits ISA savers who already bank with NatWest and want a straightforward two-year fix, though the £20,000 cap and complete lack of access until maturity are real constraints worth noting. If you want a shorter commitment, Tandem Bank's 1 Year Fixed Rate Cash ISA offers a nearly identical 4.76%.

Compare Cash ISAs

2 alternatives to NatWest's Fixed Rate ISA 2 Year

Same type of account, closest on rate.

Common questions about the Fixed Rate ISA 2 Year

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