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Cash ISA

NatWest ISA rates

Every NatWest Cash ISA we track, ranked by rate alone: 1 easy access account and 2 fixed rate accounts. Each rate was checked on NatWest's own site on 30 October 2026.

NatWest Cash ISAs at a glance

Highest rate
4.25% AER
Fixed Rate ISA, 1 Year (Issue 408)
Easy access
1.15% AER
Cash ISA
Fixed rate
4.25% AER
Terms: 1 year and 2 years
Deposit protection
FSCS, £120,000
Per person, per banking licence

NatWest Cash ISAs

Checked 30 October 2026. Ranked by rate. Links marked "Ad" can earn us commission, which never changes the order. How we make money

  1. 1. NatWest

    Fixed Rate ISA, 1 Year (Issue 408)

    4.25%

    AER fixed

    Access
    1 year fixed
    Minimum
    £1,000
    Transfers in
    Yes
    Flexible
    No

    £10,000 earns £425 in 1 year

    Calculate your returns
    Details and provider information
    Withdrawals
    No withdrawals after 23 November 2026. Closing early costs the lower of the interest earned or 90 days' interest.
    How to open
    App, online, branch or phone (phone for existing customers only)
    Your money is held by
    National Westminster Bank Plc
    Good to know
    Time-limited: new-to-bank customers can apply until 5pm on 4 November 2026 (existing customers until 9 November), or sooner if it sells out.
    Rate checked
    On the provider's own site on 30 October 2026. Source
    Legal name
    National Westminster Bank Plc (trading as NatWest)
    Country of incorporation
    England and Wales
    Principal place of business
    London, UK
    Regulatory status
    Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (FRN 121878)
    Deposit protection
    FSCS, up to £120,000 per person per banking licence
    Complaints
    Financial Ombudsman Service
  2. 2. NatWest

    Fixed Rate ISA, 2 Year (Issue 409)

    4.25%

    AER fixed

    Access
    2 years fixed
    Minimum
    £1,000
    Transfers in
    Yes
    Flexible
    No

    £10,000 earns £868 over 2 years

    Calculate your returns
    Details and provider information
    Withdrawals
    No withdrawals after 23 November 2026. Closing early costs the lower of the interest earned or 90 days' interest.
    How to open
    App, online, branch or phone (phone for existing customers only)
    Your money is held by
    National Westminster Bank Plc
    Good to know
    Time-limited: new-to-bank customers can apply until 5pm on 4 November 2026 (existing customers until 9 November), or sooner if it sells out.
    Rate checked
    On the provider's own site on 30 October 2026. Source
    Legal name
    National Westminster Bank Plc (trading as NatWest)
    Country of incorporation
    England and Wales
    Principal place of business
    London, UK
    Regulatory status
    Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (FRN 121878)
    Deposit protection
    FSCS, up to £120,000 per person per banking licence
    Complaints
    Financial Ombudsman Service
  3. 3. NatWest

    Cash ISA

    1.15%

    AER variable

    Access
    Easy access
    Minimum
    None
    Transfers in
    Yes
    Flexible
    No

    £10,000 earns £115 in 1 year

    Calculate your returns
    Details and provider information
    Withdrawals
    Withdraw any time without notice, by transfer to another NatWest account in your name or in branch. Not a flexible ISA.
    How to open
    App, online, branch or phone
    Your money is held by
    National Westminster Bank Plc
    Good to know
    Needs a NatWest current account. The rate rises to 2.45% AER on the whole balance from £25,000.
    Rate checked
    On the provider's own site on 30 October 2026. Source
    Legal name
    National Westminster Bank Plc (trading as NatWest)
    Country of incorporation
    England and Wales
    Principal place of business
    London, UK
    Regulatory status
    Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (FRN 121878)
    Deposit protection
    FSCS, up to £120,000 per person per banking licence
    Complaints
    Financial Ombudsman Service

How NatWest's ISA rates compare

NatWest's highest easy access rate is 1.15% AER, on its Cash ISA. The highest easy access rate in our tables on 30 October 2026 was 4.86% AER.

Fixed for NatWest Highest in our tables
1 year 4.25% 5.00%
2 years 4.25% 5.10%

Rates are set by each provider and can change. Compare every provider in the easy access, fixed rate and notice tables.

Taking money out of a NatWest ISA

Fixed Rate ISA, 1 Year (Issue 408)
No withdrawals after 23 November 2026. Closing early costs the lower of the interest earned or 90 days' interest.
Fixed Rate ISA, 2 Year (Issue 409)
No withdrawals after 23 November 2026. Closing early costs the lower of the interest earned or 90 days' interest.
Cash ISA
Withdraw any time without notice, by transfer to another NatWest account in your name or in branch. Not a flexible ISA.

Transferring an ISA to or from NatWest

All 3 of NatWest's adult Cash ISAs accept transfers in from other providers.

How to move an ISA to NatWest

  • You need a NatWest Cash ISA before you can transfer an ISA in from another provider.
  • In the NatWest app or Online Banking, choose the ISA you want to transfer into, go to "Transfer in an ISA", then choose "Transfer ISA from another provider".
  • The NatWest support centre says transfers between all types of ISAs are allowed, subject to the account being transferred into accepting transfers in.
  • Money from the current tax year must be transferred in full, while any amount can be moved from previous tax years.
  • For the Fixed Rate ISA, NatWest must receive an external transfer request by the last date shown in the Information Sheet, with the funds available by the Start Date.
  • If a cash ISA transfer is not completed within the expected timeline, NatWest backdates the interest, provided any Fixed Rate ISA transfer request met the key dates on the information sheet.

How long a transfer takes

NatWest lists up to 15 business days for an external transfer from a different provider and up to 30 calendar days for a Stocks and Shares ISA transfer. For a transfer out, NatWest says it carries out the transfer within 5 business days of receiving the instruction from the new ISA manager, or from a date you choose. gov.uk says ISA transfers should take no longer than 15 working days between Cash ISAs, and 30 calendar days for other types of transfer.

Moving an ISA away from NatWest

A NatWest Cash ISA can be moved in full or in part to another ISA manager, but money from the current tax year must be transferred in full. Transferring a fixed NatWest ISA to a different provider before maturity carries an Early Closure Charge, which does not apply to a transfer dated at least the day after the maturity date. You can move a Cash ISA from NatWest to another provider at any time. Ask the new provider to arrange the transfer: if you take the money out yourself, it leaves the ISA and paying it in again uses your allowance. A fixed rate ISA usually charges for leaving before the end of its term. See how ISA transfers work.

Transfer details checked on NatWest's own website on 9 October 2026.

Is the NatWest ISA flexible?

None of NatWest's adult Cash ISAs is a flexible ISA, so money you take out and pay back in counts towards your allowance again.

Good to know before you open one

Fixed Rate ISA, 1 Year (Issue 408)
Time-limited: new-to-bank customers can apply until 5pm on 4 November 2026 (existing customers until 9 November), or sooner if it sells out.
Fixed Rate ISA, 2 Year (Issue 409)
Time-limited: new-to-bank customers can apply until 5pm on 4 November 2026 (existing customers until 9 November), or sooner if it sells out.
Cash ISA
Needs a NatWest current account. The rate rises to 2.45% AER on the whole balance from £25,000.

About NatWest

Legal name
National Westminster Bank Plc (trading as NatWest)
Country of incorporation
England and Wales
Principal place of business
London, UK
Regulatory status
Authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and the Prudential Regulation Authority (FRN 121878)
Deposit protection
FSCS, up to £120,000 per person per banking licence
Complaints
Financial Ombudsman Service

This page covers NatWest's Cash ISAs only. We have no commercial relationship with NatWest, and the order of the table is set by rate alone. See how we compare and how we make money.

Questions people ask

What is the NatWest ISA interest rate?

On 30 October 2026, NatWest's Cash ISAs paid from 1.15% to 4.25% AER. The highest was the Fixed Rate ISA, 1 Year (Issue 408) at 4.25% AER.

Does NatWest offer a fixed rate ISA?

Yes. On 30 October 2026, NatWest offered fixed rate Cash ISAs (1 year and 2 years), paying up to 4.25% AER. See the fixed rate Cash ISAs from every provider.

Is the NatWest Cash ISA flexible?

None of NatWest's adult Cash ISAs is a flexible ISA, so money you take out and pay back in counts towards your allowance again.

Can I transfer an ISA to NatWest?

All 3 of NatWest's adult Cash ISAs accept transfers in from other providers.

How do I transfer an ISA to NatWest?

You need a NatWest Cash ISA before you can transfer an ISA in from another provider. In the NatWest app or Online Banking, choose the ISA you want to transfer into, go to "Transfer in an ISA", then choose "Transfer ISA from another provider". The NatWest support centre says transfers between all types of ISAs are allowed, subject to the account being transferred into accepting transfers in. Money from the current tax year must be transferred in full, while any amount can be moved from previous tax years. Ask NatWest to arrange it rather than withdrawing the money yourself: money you take out leaves the ISA.

How long does an ISA transfer to NatWest take?

NatWest lists up to 15 business days for an external transfer from a different provider and up to 30 calendar days for a Stocks and Shares ISA transfer. For a transfer out, NatWest says it carries out the transfer within 5 business days of receiving the instruction from the new ISA manager, or from a date you choose. gov.uk says ISA transfers should take no longer than 15 working days between Cash ISAs, and 30 calendar days for other types of transfer.

Is my money safe in a NatWest ISA?

NatWest Cash ISAs are held by National Westminster Bank Plc (trading as NatWest). Deposits are protected by the Financial Services Compensation Scheme up to £120,000 per person, per banking licence. See how FSCS protection works for ISAs.