A balance transfer is when you move an outstanding balance from an existing store card or credit card onto a different credit card. Having all your balances in one place can make it easier to manage your money and could mean you save on interest charges.
You can transfer a balance at any time and there's no limit on how many balances you can transfer. Just remember that you can't transfer a balance that would be more than 95% of your agreed credit limit. This includes any fees which may apply when you transfer. Always make sure you maintain payments on existing cards until the balance transfer is complete, otherwise you may be charged a missed payment fee.