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Get £25 cashback by setting aside over £100 in your first 90 days with Plum. Sign up using the Download button on this page.

T&Cs apply

CASH ISA

5.06% AER (VARIABLE)

Give your savings a long-term Plum boost and don’t pay a penny of tax on any of it up to £20,000 a year.


*Rate includes a Plum bonus of 1.52% AER (variable) if kept for 12 consecutive months and is for new customers only. The interest rate for ISA transfers is 3.54% AER (variable). Interest on our Cash ISA varies. This is the rate from 21/03/25. ISA rules and T&Cs apply. Plum is not a bank.

Cash ISA main deposit screenBritish Bank Award 2023 for Best Personal Finance AppThe Personal Finance Awards badgeFSCS protected badge

Eligible deposits are protected under the Financial Services Compensation Scheme up to £85,000.

TAX-FREE EARNINGS

UP TO £20,000 A YEAR

Pink piggy bank illustration

Save smarter with tax-free interest and the flexibility to use your money when life calls.

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Compound your savings tax-free. Your interest earns its own interest when left untouched.

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We use bank-grade protection for your personal information and your money is held with authorised banks.

Cash ISA start screen

OPEN A NEWCASH ISA

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 logo

Plum app

National Insurance Number

National Insurance Number

OPEN YOUR CASH ISA
Transfer in an existing ISA to Plum

TRANSFER INYOUR CASH ISA

If you’ve already opened one with another provider, you can transfer it over and start taking full advantage of the Plum rate. All you need to get started is:

Account number

Account number

National Insurance Number

National Insurance Number

ISA provider

ISA provider

ISA type coins

ISA type

TRANSFER YOUR CASH ISA

OPEN CASH ISA FOR FREE

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RATE BREAKDOWN

HOW YOUR RATE IS CALCULATED

PROTECTED BY FSCS

UP TO £85,000

The FSCS protects eligible deposits (up to £85,000) that you have saved, per bank, building society or credit union (or up to £170,000 for joint accounts).


If you've got existing savings with Citibank , QNB or Lloyds, the FSCS protects up to £85,000 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.

SEE FOR YOURSELF

DON'T JUST TAKE OUR WORD FOR IT


TrustPilot review reading: Discovered this app and was really impressed with it. Lots of different ways to save money that you won’t miss. Wish I had installed it months ago.
Trustpilot review reading: I’m sure I have ADHD and cannot plan anything, so plum works great for me. I don’t need any of the premium features (yet) but the free version is great looking and simple to use all. I’d recommend it to anyone.
Trustpilot review reading: Really happy with Plum so far. They do it all for you by taking regular amounts of money when money goes in. I now have the makings of a nice nest egg building up.

SUMMARY BOX

FREQUENTLY ASKED QUESTIONS

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.

LET’S GET STARTED

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