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From 1.20% AER (variable)
Tax-free interest, including a fixed bonus of 0.20% for 12 months.
Instant access
Make withdrawals at any time and replace it in the same tax year without losing tax-free allowance.
Manage in app
It’s easy to manage your account in the app. You can also use internet banking, phone, or pop into a branch.
Is a Cash ISA Saver right for you?
This account is for:
- Earning interest tax-free from as little as £1
- Earning a higher rate of interest for larger balances - see summary box for more details
- Being able to access your money quickly, if you need it
This account is not for:
- Anyone under 18 years old
- Saving more more than £20,000 in a single tax year
How much could you earn in interest?
If you put in £1,000 when you opened the account and make no withdrawals and no further deposits, the balance after 12 months will be ${cash-isa-year-1-estimated}. This assumes the interest rate stays the same for 12 months.
Cash ISA Saver Summary Box
All the information you need to know about this savings account can be found here:
| Balance | Interest rate with bonus Includes a fixed bonus of 0.20% for the first 12 months |
Interest rate without bonus Applicable after 12 months |
|---|---|---|
| £1+ | 1.20% | 1.00% |
| £25,000+ | 1.25% | 1.05% |
| £50,000+ | 1.30% | 1.10% |
| £100,000+ | 1.45% | 1.25% |
All interest rates are tax free/AER variable
Interest payments
Interest is calculated each day and paid once a year on 31 March.
The interest rate you get depends on how much money you have in your account at midnight at the end of each day. You earn the interest rate on all the money in your account.
Sometimes we offer different bonus rates. If we do this, you can choose to add or replace an existing bonus rate with a new one. This is called ‘renewing’ your account. You can renew your account at any time and as often as you like. Bonus rates are fixed and last for 12 months. Always check the rates first. For more information on how to renew your account, see the ‘Additional information’ section below.
Yes. We can move the interest rate up or down at any time. Our Savings Account General Conditions explain when we'll do this.
If we increase the interest rate, we’ll make details of the rate change available in branch, on the phone and on our website, within 3 days of the change. If we decrease the interest rate, we’ll let you know personally 14 days in advance. You can close your account without charge within 30 days of the change, and at any other time. We may not do this if you have £100 or less in your account. Instead, we may tell you about it by making details of the change available in our branches, at tsb.co.uk and through telephone banking.
Based on:
- A deposit of £1,000, £25,000, £50,000 and £100,000
- No deposits or withdrawals
- Variable interest rates remaining the same
| Year 1 | ||
|---|---|---|
| Deposit | Interest earned in the first 12 months | Balance at the end of 12 months |
| £1,000 | £12.00 | £1,012.00 |
| £25,000 | £312.50 | £25,312.50 |
| £50,000 | £650.00 | £50,650.00 |
| £100,000 | £1,450.00 | £101,450.00 |
| Year 2 | ||
|---|---|---|
| Deposit | Interest earned in the first 12 and 24 months | Balance at the end of 24 months |
| £1,000 | £10.12 | £1,022.12 |
| £25,000 | £265.78 | £25,578.28 |
| £50,000 | £557.15 | £51,207.15 |
| £100,000 | £1,268.13 | £102,718.13 |
All interest rates are tax free/AER variable.
This is an example only and doesn’t take into account your individual circumstances.
| Who can open | You must be:
|
Ways to open |
|
| Open with |
|
| Manage your account |
|
| Are withdrawals allowed? | Yes. You can withdraw and replace money from your Cash ISA Saver without it counting towards your yearly ISA allowance for that year, as long as the repayment is made in the same tax year as the withdrawal |
| Notice period | None |
| Withdrawal charges | No withdrawal penalties apply |
| How to withdraw |
(Fees may apply to some of these services, please see our Savings Account General Conditions for more information) |
- Accounts can only be opened in a sole name
- Opening a Cash ISA Saver will limit the amount that can be invested in a stocks and shares or innovative finance ISA. To find out more about this, speak to one of our Partners in your local branch or call us
- The tax advantages depend on your individual circumstances and the tax treatment of your ISA may change in the future
- If you aren’t happy with your Cash ISA Saver, you can cancel within 14 days of opening without charge
To check our rates and find out how to renew your account - click here
Or you can:
- Log into Internet Banking
- Call us on 0345 975 8758 – lines are open – 8am to 8pm every day
- Chat to us in the TSB Mobile Banking App
- Visit a TSB branch
Rates and information correct as at 18/06/2025.
Apply for a Cash ISA Saver
Already a TSB customer?
Log into Internet Banking
Apply for a Cash ISA saver
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Apply for a Cash ISA Saver
New to TSB?
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If you prefer to apply in branch or through telephone banking, you can book an appointment in advance.
Important documents
Important Information
*Variable means the interest rate on your savings can change. The rate can go up and down. If it goes up, you earn more interest. If it goes down, you’ll earn less interest, but we’ll tell you before this happens. If you’d like to know more about what might happen to our variable interest rates when the Bank of England changes the Base Rate, head over to our Popular Questions page at www.tsb.co.uk/savings/
The Annual Equivalent Rate (AER) shows what the interest would be if the interest was paid and added to the account once each year. It lets you compare savings accounts easily. Gross rate means that credit interest is paid without income tax being deducted. Tax-free is the contractual rate of interest payable where interest is exempt from income tax.
Tax-free means the interest paid will be free from UK Income Tax. The tax advantages depend on your individual circumstances and the tax treatment of your ISA may change in the future.
You need to be 16+ and UK resident to open most of our savings accounts with the exception of Savings Pots and TSB ISAs. For children under 16 please see specific pages for opening procedures.
