A balance transfer moves existing credit card debt from one card to another — usually to take advantage of a 0% introductory APR offer. Done correctly, it can save hundreds or thousands in interest and accelerate your debt payoff. Done incorrectly, it can make things worse.
How balance transfers work
You apply for a new credit card with a 0% intro APR on balance transfers (common offers range from 12–21 months). Once approved, you request to transfer your existing balance from your old card to the new card. You now owe the money to the new card — ideally at 0% interest for the promotional period.
The balance transfer fee
Most balance transfer cards charge a fee of 3–5% of the transferred amount. On a $5,000 balance, that’s $150–$250 upfront. This fee is almost always worth paying if it saves you months of interest at 20%+ APR. Calculate your break-even: if you’d pay more than $250 in interest before paying off the debt, the transfer makes financial sense.
The critical rule: pay it off before the promo ends
When the promotional 0% period ends, the remaining balance is subject to the card’s regular APR — often 20–29%. If you haven’t paid off the balance, you’re back to paying high interest. Calculate what you need to pay monthly to eliminate the full balance before the promo period ends and stick to that number.
When a balance transfer makes sense
You have credit card debt at high interest. You can qualify for a 0% balance transfer offer (typically requires good credit, 670+). You have a realistic plan to pay off the transferred balance during the promotional period. You won’t rack up new debt on the old card after transferring.