Eligible deposits are protected the Financial Services Compensation Scheme up to £120,000.

OPEN CASH ISA FOR FREE
*Rate includes a Plum bonus of 2.21% AER (variable) if kept for 12 consecutive months and other conditions are met. After 12 months, the rate will be 2.54% AER (variable) The transfer-in rate is 4.07% AER (variable) which includes a bonus rate of 1.53% AER (variable). Interest on our Cash ISA varies. This is the rate from 11/03/26. ISA rules and T&Cs apply. Plum is not a bank.

Save smarter with tax-free interest and the flexibility to use your money when life calls.
Compound your savings tax-free. Your interest earns its own interest when left untouched.
We use bank-grade protection for your personal information and your money is held with authorised banks.
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You can open your Cash ISA in your Plum app with as little as £1. It only takes a few minutes. All you need to get started is:
Plum app
National Insurance Number
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Consolidating your ISA’s can help you keep track of your savings, keep it’s tax free status and keep your old allowances earning. We offer a bonus rate for ISA’s transferred in and the process is securely managed by Plum.
Start your ISA transfer from within your Plum Cash ISA. We’ll ask for some of your details when you get started, like your name, date of birth, address and National Insurance number. This is so we can verify your tax free status with HMRC.
We need a few details of the ISA you want to transfer, including the name of the provider, type of ISA, account number and the value of the ISA.
We’ll let you know once your transfer is completed. We handle the entire process digitally. Whilst the process can take up to 30 days, we’ll provide regular updates at key milestones by email so you know where things stand.
OPEN CASH ISA FOR FREE
DOWNLOAD4.75% AER
(VARIABLE)
4.07% AER
(VARIABLE)
2.54% AER
(VARIABLE)
The FSCS protects eligible deposits (up to £120,000) that you have saved, per bank, building society or credit union (or up to £240,000 for joint accounts).
If you've got existing savings with Citibank, QNB or Lloyds, the FSCS protects up to £120,000 per person, per financial institution, so you may want to check whether any additional savings with them would mean you exceed the protection limit.
Click here to learn more about how your money is protected.
Ts&Cs & ISA rules apply. Tax rules for ISAs can change and their benefits depend on your personal circumstances. Plum does not offer financial advice and individuals should conduct their own research or seek independent advice. Read more about your allowance here.