A balance transfer card moves debt from one card to another, usually at a lower interest rate for a set period
A balance transfer is when you move an existing credit card balance to a different card, typically one offering a lower interest rate for the first 6 to 21 months. The new card pays off your old card's balance, and you owe the new card instead. The main draw is the temporary rate cut — often 0% APR — which can save you hundreds in interest if you pay down the balance before the promotional period ends.
Balance transfer cards work best if you have a specific plan to pay off the debt during the low-rate window. If you don't pay it off by the time the promotional period ends, the interest rate jumps to the card's regular APR, which is often 18% to 25%. You'll also pay a balance transfer fee upfront — usually 3% to 5% of the amount you move — which gets added to your new balance.
The catch is that balance transfer cards are not a way to erase debt. They're a tool to buy time and reduce interest charges while you pay. If you move a balance but keep spending on the new card, you'll end up with more debt than you started with.
Key Takeaways
- Balance transfer cards charge an upfront fee (typically 3% to 5%) but offer a low or 0% interest rate for 6 to 21 months, giving you a window to pay down debt faster.
- The promotional rate applies only to the transferred balance, not to new purchases you make on the card, which usually charge the regular APR when ready.
- You need decent credit (usually a score of 670 or higher) to get approved for a card with a strong balance transfer offer.
- If you don't pay off the transferred balance before the promotional period ends, the interest rate jumps to the regular APR, potentially costing more than your original card.
- Balance transfer cards work only if you have a concrete payoff plan and stop using the card for new purchases during the promotional period.
How the balance transfer fee affects your real savings
The balance transfer fee is not optional — it's charged when you move the balance, and it gets added to what you owe. If you transfer $5,000 with a 4% fee, you when ready owe $5,200 on the new card. This matters because the fee eats into your interest savings.
Here's a concrete example: You have a $5,000 balance on a card charging 22% APR. If you pay $200 a month, you'll pay about $2,800 in interest over 30 months. You transfer that $5,000 to a card with 0% APR for 18 months and a 4% fee. You now owe $5,200. If you pay $289 a month for 18 months, you'll pay off the balance before the rate jumps, and you'll have paid only $200 in fees — saving you $2,600 in interest. But if you only pay $200 a month, you'll still owe $1,400 when the promotional period ends, and then you'll start paying 22% APR on that remaining balance.
The fee only makes sense if you're confident you can pay down a meaningful portion of the balance during the promotional window. If you're not sure you can pay at least half the transferred amount in that time, a balance transfer card may not save you money.
What credit score you need and how to check yours
Most balance transfer cards with strong promotional offers require a credit score of 670 or higher. Some cards accept scores as low as 600, but those typically offer shorter promotional periods (6 to 12 months instead of 18 to 21) or higher fees. If your score is below 600, you may not be approved, or you may be offered a card that doesn't save you much money.
You can check your credit score for free through AnnualCreditReport.com, which is the official site run by the three major credit bureaus (Equifax, Experian, and TransUnion). You're may have access to to one free credit report from each bureau per year. Many credit card issuers and banks also let you see your score for free if you have an account with them. Credit monitoring services like Credit Karma and Credit Sesame also offer free scores, though the score they show may differ slightly from the one a credit card company sees.
Before you explore for a balance transfer card, pull your score and read your credit report for errors. If you find mistakes — like accounts you don't recognize or late payments that aren't yours — dispute them with the bureau that reported them. Fixing errors can raise your score and improve your approval odds.
Promotional periods vary widely — longer isn't always better
Balance transfer cards offer promotional periods ranging from 6 months to 21 months, depending on the card and the issuer. A longer promotional period sounds better, but it's only useful if you actually use it. If you can pay off your balance in 12 months, a card offering 21 months of 0% APR doesn't give you an extra benefit — you've already paid it off.
The trade-off is usually between length and fee. Cards with 18 to 21 month promotional periods often charge 4% to 5% in fees, while cards with 6 to 12 month periods may charge 3% or have no fee at all. A card with no balance transfer fee and a 12-month 0% period might save you more money than a card with a 5% fee and 21 months, if you can pay the balance in a year.
Before you explore, calculate how much you need to pay each month to clear the balance before the promotional period ends. If the monthly payment is more than you can afford, a longer promotional period might be necessary — but if it's still unaffordable, a balance transfer card won't solve your problem. In that case, you might benefit more from a debt management plan or credit counseling, which can sometimes negotiate lower rates with your current creditors without the upfront fee.
The difference between transferred balance and new purchases
This is where many people get caught: the 0% APR applies only to the balance you transfer, not to new purchases. If you transfer $5,000 and then spend $500 on the new card, that $500 is charged the regular APR (often 20% or higher) when ready. The two balances are tracked separately, and payments go toward whichever balance has the highest interest rate first — which means your new purchases accrue interest while you're paying down the transferred balance.
The safest approach is to stop using the balance transfer card entirely during the promotional period. Use a different card for new purchases, or use cash and debit. This keeps your focus on paying down the transferred balance and prevents you from adding new debt while you're trying to get out of the old debt.
Some cards offer a promotional period on new purchases as well (often called an introductory APR), but these are separate offers. A card might offer 0% APR on balance transfers for 18 months and 0% APR on new purchases for 12 months. The transferred balance and new purchases still accrue interest at different rates once their respective promotional periods end.
When a balance transfer card makes sense and when it doesn't
A balance transfer card is worth considering if: you have a credit score of 670 or higher; you have a specific plan to pay down the balance during the promotional period; you can afford the monthly payment required to clear the debt before the rate jumps; and you can stop using the card for new purchases. If all four of those are true, a balance transfer card can save you real money in interest.
A balance transfer card is not the right tool if: your credit score is below 670 and you won't be approved for a card with a strong offer; you don't have a payoff plan and are hoping the card will solve the problem; you can't afford a monthly payment high enough to make a dent in the balance; or you know you'll keep spending on the card. In those situations, you might benefit more from a debt consolidation loan (which has a fixed payoff date and prevents new borrowing), a balance transfer to a 0% APR card you already own, or a conversation with a credit counselor about other options.
how the process works and what happens after approval
You explore for a balance transfer card the same way you explore for any credit card — online, by phone, or in person at a bank branch. You'll provide your name, address, income, employment information, and Social Security number. The issuer will pull your credit report and give you an approval decision within minutes to a few days.
Once approved, you'll receive the new card in the mail (usually within 5 to 10 business days). The card comes with instructions on how to initiate the balance transfer. You can usually do this online through the card's website, by calling the customer service number on the back of the card, or by mailing a form. You'll need the account number and balance of the card you're transferring from.
The transfer itself typically takes 5 to 14 business days. During that time, you should keep making minimum payments on your old card to avoid late fees. Once the transfer posts to your new card, you'll owe the balance there instead. Your old card's balance will drop to zero (or close to it, if you had other charges). At that point, you can close the old card if you want, though closing it can temporarily lower your credit score because it reduces your available credit. Many people leave the old card open but unused.
Frequently Asked Questions
Will explore for a balance transfer card hurt my credit score?
Yes, but usually not by much. When you explore, the issuer pulls your credit report, which creates a hard inquiry and typically lowers your score by 5 to 10 points. The impact fades over time. If you're approved and open the card, your score may dip further because you now have a new account with a low average age, but this also fades. The bigger risk is if you explore for multiple balance transfer cards in a short time — each process creates a hard inquiry, and multiple inquiries in a few months can signal financial distress to lenders.
Can I transfer a balance from one card to another card from the same bank?
Usually not. Most banks don't let you transfer a balance from one of their cards to another of their cards. You'll need to transfer to a card from a different issuer. If you already have a card from another bank with a 0% APR offer, you can transfer to that card without explore for a new one.
What happens if I can't pay off the balance before the promotional period ends?
The interest rate jumps to the card's regular APR, which is typically 18% to 25%. Any remaining balance will start accruing interest at that higher rate. You can continue making payments, but you'll be paying interest again. If you know you won't be able to pay it off in time, you might transfer the remaining balance to another 0% APR card before the first promotional period ends — but each transfer charges a fee, so this strategy only works if the new card's fee is lower than the interest you'd pay.
Is there a limit to how much I can transfer?
Yes. Most cards limit your balance transfer to your credit limit minus any fees. If your credit limit is $10,000 and the fee is 4%, you can transfer up to about $9,600. Some cards also have a minimum transfer amount (often $100 to $500). The issuer will tell you your credit limit and transfer limit when you're approved.
Can I use a balance transfer card if I'm already behind on payments?
It depends on how far behind you are. If you're 30 to 60 days late, you may still be approved, though you might get a lower credit limit or a less attractive offer. If you're more than 90 days late, approval becomes much less likely. Before you explore, bring any late accounts current if you can, or contact your creditors to work out a payment plan. A credit counselor can help you figure out whether explore now or waiting makes more sense.