Customers who switch via TopCashback.com can earn as much as £47, while Quidco users could make up to £45.

The new rules, which come into force from Monday 16 September, are designed to make switching bank accounts quicker and easier.

Customers who use TopCashback to switch to will earn:

Santander

£47.25 cashback for new customers switching to the Santander 123 current account

£34.99 cashback for new customers switching to the Santander Everyday account

Lloyds

£31.50 cashback when opening an international current account

Secure Trust Bank

£21 cashback when opening a new valid account

Customers who use Quidco can earn:

Santander 123 current account: £45 cashback when switching from existing bank to an approved and opened new Santander 123 current account, completed wholly online.

Santander Everyday current account: £33 cashback when switching from existing bank to an approved and opened new Santander Everyday current account, completed wholly online