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Online Easy Access Cash ISA

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Is this account right for me?

There are a few reasons why an ISA could suit you. Save up to £20,000 this tax year without paying tax on your interest. This account is...

For the ones who
  • Want a tax-efficient savings option
  • Want to transfer money in from another ISA
  • Want a variable interest rate
  • Want to make unlimited withdrawals
  • Want to manage their account online only
Not for the ones who
  • Want the certainty of a fixed rate
  • Want to manage their account in branch

Summary box

This summary contains key information about our Online Easy Access Cash ISA. You should read it carefully before applying.

2.65% Tax-free^ each year / AER† (Variable) 
 
Interest is calculated each day on the money in the account. It will be paid into the account on 6 April every year unless the account was opened from 1 April to 5 April, in which case accrued interest will be carried over for the first year. 

Yes, variable interest rates can go up or down. If you have £100 or more in the account, we will give notice of any reduction in interest rates at least 14 days before the change takes effect. 

For more information, see the section Changes to interest rates in our Savings Terms and Conditions. 

£1,026.50
 
This is based on: 

  • No further money being put in or taken out of the account. 
  • No change to the interest rate. 

This calculation is for guidance only, to show you what a future balance could look like. It does not consider your individual circumstances. 

  • You must be a UK resident and satisfy the minimum age requirements to open a cash ISA (see your Online Easy Access Cash ISA account terms).
  • You must open your ISA online.
  • This account can also be opened by us transferring your existing Principality online-only cash ISA account into it. If we do this, we will notify you before this happens.
  • You have to link your Online Easy Access Cash ISA to a current account with another UK bank or building society in order to move money when you need it.
  • You must keep at least £1 (the minimum balance) in the account.
  • You cannot pay in more than the ISA Allowance each tax year. The ISA Allowance for the current tax year (2025/2026) is £20,000. You can only pay your ISA Allowance into one Principality cash ISA in the current tax year.
  • You can transfer unlimited amounts from ISAs from previous tax years, as these are not part of your current year’s ISA Allowance.
  • If your ISA reaches £1,000,000 you cannot pay any more money in.
  • If we do not receive the first payment or a transfer in request within five business days of the account opening, we may close it. 
  • You can manage the account by using a secure online profile with Principality.

Yes, you can make a withdrawal or close your ISA at any time using your linked account.

You can transfer your ISA at any time.

This is a flexible ISA. This means you’ll be able to take money out of it and replace that money before the end of the same tax year, without the replacement contributing to your annual ISA Allowance. 

Service charges and costs may apply to the account. These are set out in our Tariff of Charges. 

In certain circumstances we may refuse an instruction for using an account. These circumstances are set out in our Savings Terms and Conditions. 

The tax treatment of your savings depends on your individual circumstances and may change in the future. This is set by HM Revenue and Customs (HMRC). Further information can be found at gov.uk.

The interest rates quoted above were correct on 19/06/2025. 

Downloadable documents

Please take some time to review this important information. We recommend you download these and keep copies somewhere safe; you may choose to print them.

Start saving today

Already have an online only Principality ISA? You can transfer your balance to an Online Easy Access Cash ISA without applying for a new account. Just send us a secure message via your online profile. You'll need to confirm you have read and agree to the account terms and summary box above.

Still need to open a new account? You need to apply for this account online. When you apply online you can:

  • Open your account in around 10 minutes
  • Fund your account straight away
  • Name your account and set a goal to work towards

 

Additional information

*Gross interest is the rate of interest before income tax is deducted at the rate set by law.
†AER stands for Annual Equivalent Rate and illustrates what the interest rate would be if interest was paid and compounded once each year.
^Tax-free means the interest you earn isn't subject to UK Income Tax and Capital Gains Tax. Tax treatment depends on your individual circumstances and could change in future.

 

How we work out what you could save

This figure is dynamic, based on the information you've given us in the search section about your starting balance and any monthly contributions you want to make.

We make a few assumptions to calculate your result:

  • you make your initial deposit on today's date
  • any regular monthly deposits are made on the same day of the month the initial deposit is made
  • for ISAs you can't deposit more than the cash ISA limit for the current tax year

This calculation is for guidance only, to show you what a future balance could look like.