Lock your money away for 18 months at a fixed rate of tax-free interest.
Apply for an 18 Month Fixed Rate ISA
Already a TSB customer?
You’ll need to be registered for internet banking to apply
You must be 18 or over and a UK resident to apply. Or you need to already have a Cash ISA (not Junior Cash ISA) with TSB if you’re under 18.
Apply for an 18 Month Fixed Rate ISA
New to TSB?
Register and apply for your account
You must be 18 or over and a UK resident to apply
If you prefer to apply in branch or through telephone banking, you can book an appointment in advance.
Important Information
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.