how many cash isas can i have

You can hold as many cash ISAs as you like , but you’re limited by how much you can pay into them each tax year, not by the number of accounts you open.

Quick scoop

• In 2025/26 the overall ISA allowance is £20,000 across all your ISAs combined (cash, stocks & shares, etc.).

• Current rules let you open and pay into multiple cash ISAs in the same tax year, even of the same type, as long as your total subscriptions stay within that £20,000 limit.

• There is no official cap on how many cash ISAs you can hold over the years; what matters is that each year’s new money stays within the annual allowance.

So you could, for example, split one year’s £20,000 by paying into three different cash ISAs, or keep several older ISAs from previous years plus a new one, and still be fine as long as you don’t put in more than the annual allowance that year.

Always check each provider’s own rules: some banks limit you to one active cash ISA with them per tax year, even though the government rules allow more in total.

TL;DR: Unlimited number of cash ISAs in principle; strictly limited by the yearly tax-free allowance you pay in. Information gathered from public forums or data available on the internet and portrayed here.