A balance transfer card allows you to transfer a balance from one credit card to another. Balance transfer credit cards often come with 0% interest for a fixed term, for instance the first four months of you owning your credit card.
Balance transfer card definition
This means that you can transfer the amount you owe from another credit card (usually for a fee), and not pay interest on the balance for the 0% period. This can give you more time to pay off what you owe without your debt increasing. When your 0% period comes to an end, the card’s usual interest rate will apply to any remaining balance.