⏳ Reading Time: 6 minutesA Cash ISA (Individual Savings Account) is a UK savings account. With this account you can earn interest on your money without paying tax on it. Each tax year, there is a limit on how much you can contribute across all types of ISAs, including Cash ISAs.
For the 2026/2027 tax year, the total ISA allowance is £20,000. This means you can only save or invest up to this amount in ISAs combined within the year, whether you choose to place all of it in a Cash ISA or split it between different ISA types. Let’s see how it works.
What is a Cash ISA account?A UK savings account where interest earned is tax-freeWhat is the Cash ISA allowance?The total amount you can put into ISAs each tax year without paying taxWhat is the limit for 2026/2027 tax year?£20,000 total ISA allowanceWhat is the limit for 2027/2028 tax year?Probably £12,000 on Cash ISA allowance
How Does the Cash ISA Allowance Work?
Your cash ISA allowance is simply the portion of your overall £20,000 that you choose to put into a cash ISA. You can decide how much of your total ISA allowance goes into cash, and how much goes into other ISA types.
