A tax-free return and a guaranteed rate of interest on your savings until 31 May 2031. Transfers of used ISA allowances from other providers only.
Rates effective from 27 March 2026.
Key features:
Account name
Fixed Rate Cash ISA (Issue 299)
What is the interest rate?
| Annual | Monthly | |||
|---|---|---|---|---|
| Balance | Tax-free* | AER† | Tax-free* | AER† |
| £5,000+ | 4.51% | 4.51% | 4.41% | 4.50% |
Rates effective from 27 March 2026.
Interest is fixed, calculated on a daily basis and paid annually on 31 May or monthly on the last working day of the month.
Can Marsden Building Society change the interest rate?
The interest rate is fixed which means that we won't change the interest rate payable on your account prior to maturity on 31 May 2031.
What would the estimated balance be after 12 months based on a £25,000 deposit?
If you saved £25,000, the estimated balance after 12 months would be £26,127.50.
This example assumes an investment of £25,000 is made on 01 June, no withdrawals or further deposits are made throughout the 12 months, the interest earned is added to the account annually, and no changes are made to the current interest rate. It's provided for illustrative purposes only and doesn't take into account your individual circumstances.
How do I open and manage my account?
This account is available to UK residents and can be opened and operated online only. You may be able to open an account if you're not a UK resident. Please see the 'Eligibility' section on the product terms and conditions available on the 'Conditions' tab.
The minimum balance to open the account is £25,000. The overall maximum holding by any one person in respect of all savings accounts with the Society is £250,000. This includes money held in a joint account.
Transfers of used ISA allowances from other providers only where funds are accessible within 14 days and received within 30 days of account opening. After this date, no transfers of used ISA allowances will be permitted. Please note, we don’t accept transfers from Stocks and Shares ISAs, Innovative Finance ISAs or Lifetime ISAs. We only accept Cash ISA to Cash ISA transfers.
Once your ISA provider has transferred your ISA to us, we'll add the money to your account and backdate the interest to whichever is the soonest; either:
Can I withdraw money?
You won't be able to make any partial withdrawals before maturity.
You can close your account prior to maturity, or transfer to a new ISA provider; however you will incur an interest penalty equivalent to 360 days’ interest.
If you want to transfer your ISA to another provider, please speak to them as they'll need to arrange an ISA Transfer to protect the tax-free status of your savings.
Additional information
Interest will be paid tax-free. The favourable tax treatment of ISAs may change in the future.
*Tax-free means that interest is not subject to income tax.
†AER stands for the Annual Equivalent Rate and shows you what the interest rate would be if interest was paid and added each year.
Download our full savings terms and conditions: General Retail Savings Terms and Conditions (PDF)
Download our product terms and conditions: Fixed Rate Cash ISA (PDF)
To apply online, visit our ‘eSavings’ platform and follow the steps on screen.
Download our list of Identification Requirements: Identification Requirements (PDF)
Download our Cash ISA Transfer Authority Form: Cash ISA Transfer Authority Form (PDF)
Please note, products can be withdrawn at any time and without notice.
We want to provide the best service possible, so if you have any questions, get in touch. You can contact us by phone, visit us in branch or email us – we’ll be happy to help.
01282 440500 * 
