Your Cash ISA earns interest daily in the background, based on your cleared balance.
Your basic interest amount is paid into your Cash ISA monthly, on the last business day of the next month.
If you’re eligible for Plum bonus interest, it is paid into your account on the last working day of the month after the bonus rate period ends.
Plum bonus eligibility
You’ll need to keep £100 or more in your Cash ISA to qualify for the bonus rate.
You can make up to 3 withdrawals during the first year of your Cash ISA. The interest rate for your Cash ISA will be decreased if you make 4 or more withdrawals for the remainder of that first year.
Important to know
Rates vary depending on when you opened your Cash ISA.
Plum uses the gross rate to calculate your interest daily.
The Annual Equivalent Rate (AER) stands for Annual Equivalent Rate, a measure of interest earned on a savings account over a year, including the effects of compounding interest.
We’ll always let you know in advance of any interest rate reductions.