You must be a UK resident aged 18+. You can only subscribe to one cash ISA with NatWest in this tax year up to £20,000. Tax free interest means interest payable is exempt from UK income tax. Tax reliefs referred to are those applied under current UK legislation, which may change.
Applications for this Fixed Rate ISA are available until 5pm on 09 October 2026 to new-to-bank customers and 12 October 2026 to existing customers. Please note that these offers may be withdrawn early due to availability. Early closure charges may apply. Interest is calculated daily and paid annually.
Fixed Rate cash ISA interest rates
4.75% AER/Tax-free p.a. (fixed) on a 1 year term or 4.75% AER/Tax-free p.a. (fixed) 2 year term
- Tax‑free interest – All the interest you earn is tax‑free.
- Fixed rate, guaranteed – Lock in a set rate from £1,000.
- Annual interest payments – Added each year.
Fixed Rate cash ISA interest rates
4.75% AER/Tax-free p.a. (fixed) on a 1 year term or 4.75% AER/Tax-free p.a. (fixed) 2 year term
- Tax‑free interest – All the interest you earn is tax‑free.
- Fixed rate, guaranteed – Lock in a set rate from £1,000.
- Annual interest payments – Added each year.
Handy information to help you on your savings journey.
Opening your Fixed Rate ISA
Whether you are a new or existing customer, you can still open a Fixed Rate ISA with us. T&Cs apply.
Opening a Fixed Rate ISA as a new customer
As you're a new customer, we'll need to check your ID before opening your fixed ISA.
We'll do this by matching your photo ID to a selfie of you. You’ll need a device with a camera to upload these. We may also ask for other ID like proof of address. If you don’t have your ID to hand, you can finish this step later.
Key dates
09 October 2026 by 5pm
As a new customer, this is the last day you can apply and to make any external ISA transfers.
12 October 2026
It’s important we receive the requested information by this date. This includes completing the required ID checks. If we don’t, we’ll be unable to open your account. You'll still be able to apply for our next offer so check back with us on 13 October 2026.
Please ensure you read the summary box below before applying.
Already bank with us and want to open a Fixed Rate ISA?
If you already have a current account, credit card, loan or a savings account with us and want to open a 1 year or 2 year Fixed Rate ISA, select apply to begin your application.
Please ensure you read the summary box below before applying.
You could win £10,000 with our ISA Prize draw
Or 110 other cash prizes, including 10 prizes of £1,000 and 100 prizes of £100.
Every £50 deposited equals one entry.
For a chance to win:
- Make a payment or transfer of £50 or more into an ISA; or
- Set up a new regular monthly payment or increase existing monthly payment by £50 or more.
- If you already pay into an eligible ISA, you're automatically entered. You'll receive one entry for every qualifying £50 added.
Eligible accounts include Fixed Rate ISA, instant access Cash ISA, Stocks and Shares ISA and Junior ISA.
Entry open until 11th January 2027 subject to the eligibility criteria and exclusions. T&Cs, fees and charges may apply. When investing your capital is at risk. Free entry route available.
Interest rates and balance examples
Key dates
Can I withdraw money from a Fixed Rate ISA?
You can withdraw money from your account (in branch or by telephone) until 26 October 2026 at 3:30pm. Partial withdrawals aren’t permitted after that.
If you want to access your money after this cut-off but before the maturity date, you’ll need to ask us to close your Fixed Rate ISA. When your Fixed Rate ISA is closed, we’ll convert it into a Cash ISA and then you can access your funds. We’ll charge an Early Closure Charge for doing this.
For more details, take a look at our Fixed Rate ISA Terms (PDF 268 KB) (Term 8).
If you carry on applying, it means you're happy with what's in these documents, including the FSCS information sheet. Please take some time to review, print and/or save the important information.
Take a look at other saving options
Fixed Rate ISAs aren't your only option. We have a range of other savings accounts available. Check out all the options we've got to see if one might be right for you.
Please remember that once you move your money from an ISA to a non-ISA account the money will no longer have tax free status.
Specific account eligibility apply.