How much can I pay into my Cash ISA?

You can pay in up to £20,000 into ISAs each tax year – this allowance is shared across all of the ISAs you hold. For example, if you paid £12,000 into a Cash ISA this tax year, you’d still have £8,000 of your allowance remaining to pay into other ISAs.

Your ISA allowance resets at the start of each next tax year (April 6th), so if you have used your full ISA allowance in a previous tax year but not deposited anything into ISAs this tax year, you still have your full £20,000 allowance remaining.

HMRC rules state that you’re able to open and deposit into more than one ISA of the same type (e.g. paying into two Cash ISAs in the same tax year), but excludes paying into more than one Lifetime ISA, as this is limited to one per tax year.