Overlay
Fixed Rate ISA

Fix your savings interest rate for 1 or 2 years

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. 

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.

Box with coins

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.

Summary Box

Account name: Fixed Rate ISA

Interest rates and balance examples

Key dates

First things first. Please take a look at the important legal info:

How your information might be used

It’s important for you to understand how we use and share your information. Please read this short summary before you continue with your application.

As part of the checks that we will complete to verify your identity, we’ll take an image of your face so that it can be compared with your photo ID and this biometric data is captured.

All okay? You're nearly ready to start.

Please take your time to read the summary box information and make sure this savings account is right for you.

Unsure? Compare our savings accounts

To speed up your application for our Fixed Rate ISA account, we need to do a few final checks with you. They'll only take a minute.

Do we already know you?
If you have a current account, credit card, loan or savings account with NatWest please let us know.

Great, let's get your application started.

  1. Tell us a bit about yourself and we’ll set up your account.
  2. We might need to verify your identity when you apply online. 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 might also ask for other information like proof of address.  If you don’t have your ID to hand, you can finish this step later. 
  3. Our partner Mitek will then check your identity by matching you to your Photo ID. Your Photo ID must be a Passport, UK or EU/EEA Driving Licence or an EU/EEA National ID card. We might also ask for a valid proof of address. If you don't have your ID to hand you can finish this step later.
  4. Once they’ve confirmed your identity we’ll activate your account.

Remember, to apply for a Fixed Rate ISA, you must: 

  • Have your National Insurance number. You’ll find it on your payslip, P60 or any letters from HMRC.
  • Be at least 18 years old and a permanent UK resident, or a Crown Servant serving overseas, their spouse or civil partner.
  • Have a phone number and email address we can contact you on.

 

Do you have our NatWest app on a mobile device?
If you're registered for our app on a mobile device, we can pre-fill some of your info, making the application process faster.

Great, let's get your application started.

Remember, to apply for a Fixed Rate ISA, you must: 

  • Have your National Insurance number. You’ll find it on your payslip, P60 or any letters from HMRC.
  • Be at least 18 years old and a permanent UK resident, or a Crown Servant serving overseas, their spouse or civil partner.
  • Have a phone number and email address we can contact you on.

Using a desktop or have the app on another device?

Simply scan the QR code with your mobile or tablet device that has the NatWest app and we'll get you started.  

Can't scan the QR code?

Using your mobile or tablet device now?

If you're already using a device with the NatWest app, select the 'Start your application' button below.

Do you use Online Banking?
If you log in to Online Banking we can pre-fill some of the application for you.

Log in to NatWest Online Banking

  1. Enter your customer number or 16-digit card number to get started. 
  2. You'll then need to enter your Online Banking pin and password.
  3. Once you're logged in, select 'Savings accounts' from the product list. 
  4. Finally, choose the account you want to apply for and complete your application.

Remember, to apply for a Fixed Rate ISA, you must: 

  • Have your National Insurance number. You’ll find it on your payslip, P60 or any letters from HMRC.
  • Be at least 18 years old and a permanent UK resident, or a Crown Servant serving overseas, their spouse or civil partner.
  • Have a phone number and email address we can contact you on.

Let’s get you registered for Online Banking

You’ll need to sign up for Online Banking with us in order to apply for a savings account. The good news is that it normally takes only 5 minutes and all you’ll need is your sort code, account number and your NatWest Debit Card, if you have one.

Once you’ve registered, select ‘Next’ to log in and apply for a Fixed Rate ISA account. 

Log in to NatWest Online Banking

  1. Enter your customer number or 16-digit card number to get started. 
  2. You'll then need to enter your Online Banking pin and password.
  3. Once you're logged in, select 'Savings accounts' from the product list. 
  4. Finally, choose the account you want to apply for and complete your application.

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.