What a balance transfer is and why you might do one
A balance transfer moves debt from one credit card to another, usually to a card with a lower interest rate. You contact the new card issuer, give them your old card details, and they pay off that balance on your behalf. You then owe the new card issuer instead of the old one.
The main reason to transfer is to reduce interest charges. If you carry a balance at 22% APR and move it to a card charging 0% for 12 months, you stop paying interest during that period — but only on the transferred amount. Any new purchases on the new card typically start at the regular rate when ready.
A balance transfer also consolidates debt if you're juggling multiple cards. Instead of making payments to three issuers, you make one payment. This can make the debt easier to track and harder to miss.
Key Takeaways
- Balance transfers move your debt to a new card, usually one with a promotional 0% interest rate that lasts anywhere from 6 to 21 months depending on the card.
- You pay a transfer fee upfront — typically 3% to 5% of the amount moved — which gets added to your new balance.
- The 0% rate applies only to the transferred balance, not to new purchases, so avoid charging on the new card while you're paying down the transfer.
- You must pay down the transferred balance before the promotional period ends, or the regular APR kicks in on whatever remains.
- The transfer process takes 5 to 14 days, and your old card account usually stays open even after the balance hits zero.
How the transfer fee works and what it costs
When you transfer a balance, the card issuer charges a transfer fee as a percentage of the amount you move. This fee is not optional — every card that offers balance transfers charges one. The fee typically ranges from 3% to 5%, though some cards charge as low as 2% or as high as 5%.
The fee gets added to your new balance when ready. If you transfer $5,000 at a 4% fee, you now owe $5,200 on the new card. This is why the math matters: a 0% promotional rate saves you money only if the interest you would have paid on the old card exceeds the transfer fee. On a $5,000 balance at 22% APR, you'd pay roughly $1,100 in interest over 12 months — so a $200 fee is worth it. On a $500 balance, it probably isn't.
Compare the fee and the promotional period across cards before you choose. A card with a 3% fee and 18 months at 0% may be better than one with a 5% fee and 12 months at 0%, depending on how much you're moving and how fast you can pay it down.
The promotional period and what happens when it ends
Most balance transfer cards offer a promotional APR — a period of months during which you pay 0% interest on the transferred balance. This period varies by card and by the issuer's current offers. Common lengths are 6, 12, 18, or 21 months. A few cards offer longer periods, but these are rare and usually require good credit.
The promotional rate applies only to the balance you transferred. Any new purchases you make on the card start accruing interest at the regular APR right away — often 18% to 25%. This is why financial advisors recommend not using the new card for purchases while you're paying down the transfer.
When the promotional period ends, any remaining balance on the transferred amount switches to the card's regular APR. If you transferred $5,000 and paid down $3,000 during the 12-month 0% period, the remaining $2,000 now charges interest at the regular rate. This is why timing matters: you need a realistic plan to pay the full amount before the promotion expires.
Step-by-step process for moving your balance
Start by choosing a new card. Look for one with a promotional 0% APR period long enough to pay down your balance, and compare transfer fees across issuers. Once you've chosen, open the account — this usually takes 5 to 10 minutes online.
After your new card arrives or your account is active, log into the issuer's website or call the number on the back of the card. Look for a "balance transfer" or "transfer balance" option in the account menu. You'll need to provide the account number of the old card, the card issuer's name, and the amount you want to transfer. Some issuers let you transfer the full balance; others cap transfers at a percentage of your credit limit.
The issuer will confirm the transfer fee and the promotional period, then send the payment to your old card issuer. This process typically takes 5 to 14 days. During this time, keep making minimum payments on your old card to avoid late fees — the transfer hasn't cleared yet, so the balance is still your responsibility. Once the transfer posts to your new card, you'll see it reflected in your account.
Set up a payment plan on the new card. Divide the transferred balance (including the fee) by the number of months in the promotional period. If you transferred $5,200 and have 12 months, aim to pay roughly $433 per month. This ensures you clear the balance before interest kicks in.
When a balance transfer makes financial sense
A transfer is worth doing when the interest you save exceeds the transfer fee. Calculate this by multiplying your current balance by your current APR and dividing by 12 to get your monthly interest charge. Multiply that by the number of months in the promotional period. If that number is larger than the transfer fee, the transfer saves you money.
A transfer also makes sense if you're consolidating multiple cards and the new card's promotional period is long enough to pay everything down. Juggling three cards at 20% APR is more expensive and harder to manage than one card at 0% for 18 months.
A transfer does not make sense if you plan to run up new debt on the old card or if you can't commit to a payment plan. If you transfer $5,000 and then charge another $3,000 on the old card, you've just moved one problem and created another. Similarly, if you transfer but have no plan to pay it down, you're just delaying the interest charge.
What happens to your old card after the transfer
Your old card account stays open after the balance transfers to zero. The issuer does not close it automatically. This is actually useful: keeping the account open preserves your credit history and lowers your credit utilization ratio (the percentage of available credit you're using). Closing old accounts can hurt your credit score.
You can keep the old card in a drawer unused, or you can close it yourself if you want. There's no penalty for keeping it open as long as there's no annual fee. If the card does charge an annual fee and you're not using it, closing it makes sense. If there's no fee, leaving it open costs nothing and helps your credit profile.
Do not charge new purchases on the old card after the transfer. The goal is to pay it down to zero and leave it alone. If you start using it again, you're rebuilding the debt you just moved.
How a balance transfer affects your credit score
A balance transfer typically causes a small, temporary dip in your credit score. This happens for two reasons: opening a new account creates a hard inquiry on your credit report, and it lowers your average account age. Both factors affect your score slightly, usually by 5 to 10 points.
However, your score usually recovers within a few months, especially if you make on-time payments on the new card and keep your credit utilization low. The long-term benefit — paying down debt faster because you're not paying interest — usually outweighs the short-term dip.
If you're planning to explore for a mortgage or car loan in the next few months, timing matters. Wait until after the transfer to explore for new credit, or wait a few months after the transfer for your score to recover. If you're not explore for anything soon, the temporary dip is not a reason to avoid a transfer that saves you money.
Frequently Asked Questions
Can I transfer a balance from one card to the same issuer?
Most issuers do not allow you to transfer a balance between their own cards. You typically have to move the balance to a card from a different issuer. Check the card's terms before you open it if this is your situation.
What if I can't pay off the balance before the promotional period ends?
The remaining balance will start accruing interest at the regular APR. If you have $2,000 left when the 0% period ends, that $2,000 will be charged interest going forward. Some people do a second balance transfer to another card with a new 0% period, but this requires opening another account and paying another transfer fee.
Does the transfer fee count toward my credit limit?
Yes. If you transfer $5,000 at a 4% fee, you owe $5,200, and that $5,200 counts against your $10,000 credit limit. Your available credit drops to $4,800. This is why the fee gets added to your balance rather than charged separately.
Can I transfer a balance if I have bad credit?
Most balance transfer cards require fair to good credit — typically a score of 650 or higher. If your score is lower, you may not be approved. Some issuers offer balance transfer options for lower credit scores, but the promotional periods are shorter and the fees may be higher.
How long does the transfer actually take?
The transfer usually posts within 5 to 14 days, depending on the issuer and the old card's bank. Some transfers clear in 3 to 5 days; others take up to two weeks. During this time, keep making minimum payments on your old card to avoid late fees.