Balance Transfer

A balance transfer moves debt from one or more existing cards onto a new card that charges no interest for an introductory window — commonly twelve to twenty-one months. Nothing is repaid by the move itself; what changes is that every dollar you pay during the promotion reduces the balance rather than the finance charge.

The transfer is not free. Issuers charge a fee of 3% to 5% of the amount moved, taken up front and added to the transferred balance. On $8,000 that is $240 to $400 — still a fraction of what a year at 24% would cost, but it means a promotion needs enough runway to be worth taking.

The offer has conditions worth reading before you apply. The promotional rate covers transferred balances only, so new purchases on the same card may accrue interest immediately, and a single late payment can end the promotion outright. Most issuers refuse transfers between their own cards, and the approved limit may be smaller than the debt you meant to move.

Unlike deferred-interest store financing, a standard balance transfer does not bill you retroactively when the promotion ends — the remaining balance simply begins accruing at the card's ordinary go-to rate. That still hurts, which is why the amount you can realistically clear inside the window is the number that decides whether the transfer works.

Approval generally requires good credit, and the application itself triggers a hard inquiry. The real failure mode is behavioral rather than mathematical: the old cards are now empty, and a household that fills them again ends the promotion with more debt than it started with.