Compare our best cash ISA rates

Rate includes a Plum bonus of 1.41% AER (variable) if kept for 12 consecutive months and other conditions are met. After 12 months, the rate will be 3.04% AER (variable). Interest on our Cash ISA varies. This is the rate from 30/10/25. ISA rules and T&Cs apply. Plum is not a bank

Tax treatment depends on your personal circumstances and is subject to change

No notice, penalty, or charge applies.

Withdrawals are not permitted during the term. Closure is permitted subject to 360 days loss of interest.

Withdrawals are not permitted during the term. Closure is permitted subject to 180 days loss of interest.

Withdrawals are not permitted during the term. Closure is permitted subject to 270 days loss of interest.

Withdrawals and closure are permitted subject to 365 days interest penalty.

Withdrawals are not permitted. Early closure is permitted (including transferring to another ISA provider) but this will be subject to an interest penalty of 90 days’ interest, which may result in you receiving less money than you originally deposited.

Withdrawals are not permitted. Early closure is permitted (including transferring to another ISA provider) but this will be subject to an interest penalty of 360 days’ interest, which may result in you receiving less money than you originally deposited.

Withdrawals and closure are permitted subject to 120 days interest penalty.

Rate drops to standard rate after first 12 months. ISA & tax rules apply. Rate includes a Moneyfarm bonus of 0.82% AER (variable) if kept for 12 consecutive months and is for new customers only. No notice, penalty or charge is made for withdrawals however only 3 withdrawals are permitted each calendar year, after the 4th the rate drops to the standard rate.