What a balance transfer card does
A balance transfer card is a credit card that lets you move debt from one card to another, usually at a lower interest rate for a set period. The card issuer pays off your old balance, and you owe that amount to them instead — typically with no interest or a much lower rate for 6 to 21 months, depending on the card and the offer.
The catch is that this low rate is temporary. After the promotional period ends, the regular interest rate kicks in. You also usually pay a one-time fee upfront — typically 3 to 5 percent of the amount you transfer — though some cards waive this fee for a limited time.
Balance transfer cards work best if you have a concrete plan to pay down the debt during the promotional period. If you straightforward move the balance and keep spending, you end up deeper in debt with a higher rate waiting at the end of the promotion.
Key Takeaways
- Balance transfer cards move your existing debt to a new card at a lower interest rate for a fixed promotional period, usually 6 to 21 months.
- You pay an upfront transfer fee of 3 to 5 percent of the amount moved, though some offers waive this fee temporarily.
- The low rate expires after the promotional period ends, and the regular interest rate — often 15 to 25 percent — applies to any remaining balance.
- You need decent credit (usually a score of 670 or higher) to may have access to for the best balance transfer offers.
- The strategy only saves money if you pay down the transferred balance before the promotional rate ends.
How the promotional period works
When you open a balance transfer card, the issuer sets a specific end date for the low or zero interest rate. During this window — say, 12 months — any payment you make goes toward reducing the principal. You are not paying interest on that amount, so more of your payment actually reduces what you owe.
Once the promotional period ends, the regular annual percentage rate (APR) takes over. If you still have a balance at that point, interest starts accruing at the standard rate, which can be 15 to 25 percent or higher depending on your creditworthiness and the card.
Some cards also charge interest on new purchases from day one, even during the promotional period. Others give you a grace period on purchases. Read the terms carefully — the zero percent rate often applies only to transferred balances, not to new charges you make on the card.
The transfer fee and whether it makes sense
Most balance transfer cards charge a fee of 3 to 5 percent of the amount you move. On a $5,000 transfer, that is $150 to $250 added to your debt when ready. Some cards offer a 0 percent transfer fee for the first 60 or 90 days, which can make a real difference if you are moving a large balance.
To know whether a balance transfer saves you money, compare the fee plus the interest you would pay on the new card against the interest you would pay on your current card. If your current card charges 22 percent and you can move the balance to a card with 0 percent for 12 months and a 3 percent fee, the math usually favors the transfer — but only if you pay down the balance during those 12 months.
Use a balance transfer calculator to run the numbers with your actual balance, current interest rate, and the promotional terms of the card you are considering. Many card issuers provide these tools on their websites.
Credit score requirements and approval odds
Balance transfer cards with the longest promotional periods and lowest fees typically require a credit score of 700 or higher. Cards with shorter promotions or higher fees may accept scores as low as 670. If your score is below 650, you may not be approved for a balance transfer card at all, or you may only may have access to for offers with shorter promotional periods and higher fees.
Your credit utilization also matters. If you are already using most of your available credit across other cards, a new process may hurt your score temporarily and reduce your odds of approval. The issuer also looks at your income, existing debt, and payment history.
If you are denied, do not explore to multiple cards in a short time. Each process creates a hard inquiry on your credit report and can lower your score further. Instead, wait a few months, work on paying down existing balances, and try again.
What happens after the promotional period ends
This is where many people get stuck. The promotional rate ends on a specific date — mark it on your calendar. On that date, the regular APR applies to any remaining balance. If you still owe $2,000 when the promotion expires, you now pay interest on that $2,000 at the card's standard rate.
Some people try to move the remaining balance to another balance transfer card. This is called "rate surfing," and it can work if you may have access to for another card with a new promotional period. But each transfer costs another fee, and each process affects your credit score. After two or three transfers, the fees and damage to your credit often outweigh the savings.
The best approach is to treat the promotional period as a important date. Calculate how much you need to pay each month to eliminate the balance before the rate changes. If you cannot afford that payment, a balance transfer card may not be the right tool for your situation.
When a balance transfer card makes sense
Balance transfer cards work best when you have a specific, high-interest debt (usually from a credit card) and a realistic plan to pay it off within the promotional period. They also work better if you have the discipline not to rack up new debt on the card while you are paying down the transferred balance.
A balance transfer is less useful if you are moving debt around to avoid dealing with the underlying spending problem. If you transferred a balance last year and are now carrying new debt on top of it, a second transfer is unlikely to help.
Balance transfer cards are also not the right choice if you have very high debt relative to your income. If paying off the balance in 12 to 21 months would require payments you cannot afford, you may need a different strategy — such as a debt consolidation loan, a debt management plan, or speaking with a credit counselor about your options.
Comparing balance transfer offers
When you are shopping for a balance transfer card, compare three things: the length of the promotional period, the transfer fee, and the regular APR that kicks in after the promotion ends.
A card with a 21-month zero percent promotion and a 3 percent fee is usually better than one with a 12-month promotion and a 5 percent fee — but only if you can actually pay down the balance in 21 months. A longer promotion does not help if you cannot afford the monthly payment.
Also check whether the card charges an annual fee. Some balance transfer cards charge $95 or more per year, which eats into your savings. Many cards waive the annual fee for the first year, then charge it in year two.
Frequently Asked Questions
Can I transfer a balance from one card to the same issuer?
No. Most card issuers do not allow you to transfer a balance from another card they issued to a new card. You can only transfer balances from cards issued by other banks or credit card companies.
What if I cannot pay off the balance before the promotional rate ends?
The remaining balance will be charged the regular APR, which is often higher than your original card's rate. You can try to transfer the remaining balance to another card with a new promotional period, but you will pay another transfer fee and take another hit to your credit score. A better option may be to contact your current card issuer and ask about a lower rate, or to explore a debt consolidation loan.
Does opening a balance transfer card hurt my credit score?
Yes, but usually temporarily. The process creates a hard inquiry, which can lower your score by a few points. Opening a new account also lowers your average account age. However, if the transfer reduces your overall credit utilization (the percentage of your total available credit you are using), that can help your score over time.
Can I make new purchases on a balance transfer card?
Yes, but be careful. New purchases usually have a regular APR from day one, even if your transferred balance is at zero percent. Some cards also charge a higher APR on purchases than on transferred balances. Avoid using the card for new spending while you are paying down the transferred balance.
What is the difference between a balance transfer card and a debt consolidation loan?
A balance transfer card moves debt between credit cards and offers a temporary low rate. A debt consolidation loan is a separate loan that pays off multiple debts, and the interest rate is fixed for the entire loan term. A consolidation loan may be better if you have very high debt, cannot may have access to for a good balance transfer offer, or need a longer repayment timeline.