What a balance transfer credit card does
A balance transfer moves debt you owe on one credit card to a different card, usually one with a lower interest rate. The new card's issuer pays off your old balance, and you then owe that amount to them instead. The main reason to do this is to save money on interest while you pay down what you owe.
Most balance transfer cards offer a promotional period — typically 6 to 21 months — during which the interest rate is 0%. After that period ends, a regular interest rate kicks in. The catch is that balance transfer cards usually charge an upfront fee, typically 3% to 5% of the amount you transfer. So if you move $5,000, you might pay $150 to $250 just to open the transfer.
Balance transfers make sense only if you can pay down the debt during the promotional period, or at least pay enough that the interest you save outweighs the transfer fee. If you transfer $5,000 at a 3% fee and then make no payments, you have spent $150 and gained nothing.
Key Takeaways
- Balance transfer cards charge an upfront fee (usually 3% to 5%) but offer 0% interest for a set period, which can save you hundreds in interest if you pay down the balance during that time.
- The promotional period typically lasts 6 to 21 months depending on the card; interest rates return to normal once it ends, so a payment plan before that date matters.
- You can transfer balances from multiple cards to one balance transfer card, but the 0% rate applies only to the transferred amount, not new purchases.
- Balance transfer cards usually require good to excellent credit (typically a score of 670 or higher) to be considered, and approval is not may provide.
- Comparing cards means looking at the length of the promotional period, the transfer fee, the regular interest rate after the period ends, and any annual fee.
How to decide if a balance transfer makes financial sense
Start by calculating whether you will actually save money. Take the transfer fee (the card's fee percentage times the amount you plan to move) and subtract it from the interest you would pay on your current card during the promotional period.
For example: You owe $3,000 on a card charging 18% annual interest. A balance transfer card charges 3% to transfer and offers 0% for 12 months. The transfer fee is $90. On your current card, you would pay roughly $270 in interest over 12 months if you made no payments. So the transfer saves you about $180 after the fee. That math only works if you actually pay down the $3,000 during those 12 months — if you do not, the regular interest rate on the new card will erase the savings.
If you cannot pay down the full balance during the promotional period, a balance transfer may still help if the regular interest rate on the new card is lower than your current card's rate. But the fee still costs you money upfront, so run the numbers before you move forward.
What credit score you typically need
Most balance transfer cards are marketed to people with good to excellent credit. "Good" usually means a score around 670 to 739, and "excellent" means 740 and above. Cards with longer promotional periods and lower fees tend to require higher scores.
If your score is below 670, you may still find balance transfer options, but they often come with higher fees, shorter promotional periods, or both. Some cards designed for fair credit (typically 580 to 669) offer balance transfer features, though the savings are usually smaller.
Your score is not the only thing issuers look at. They also consider your income, how much debt you already carry, and your payment history. Even with a good score, you are not may provide approval.
Comparing balance transfer cards: what matters
When you are looking at different cards, focus on these four things:
- Length of the promotional period. Longer is better — 18 to 21 months gives you more time to pay down the balance. Shorter periods (6 to 9 months) mean less breathing room.
- Balance transfer fee. This is usually 3% to 5% of the amount transferred. Some cards charge a flat fee instead (for example, $5 or $10 per transfer). Lower is better, but a slightly higher fee may be worth it if the promotional period is much longer.
- Regular interest rate after the promotional period. This is the rate you will pay if you still carry a balance when the 0% period ends. Rates typically range from 15% to 25%, depending on your creditworthiness and the card.
- Annual fee. Some balance transfer cards charge an annual fee ($0 to $95 or more). If you plan to close the card after you pay off the balance, a high annual fee is a waste. If you plan to keep it open, factor the fee into your total savings.
Do not focus only on the promotional period length. A card with an 18-month 0% offer and a 5% fee may save you less money than a card with a 12-month offer and a 3% fee, depending on how much you transfer and how fast you can pay it down.
How the transfer process works
Once you are approved for a balance transfer card, the issuer will contact you to ask which balances you want to move and from which cards. You provide the account numbers and the amounts. The new card's issuer then pays off those balances directly to your old card companies.
The transfer usually takes 5 to 14 business days. During that time, keep making payments on your old cards if you can, because the balances are still there until the transfer clears. Once the transfer posts, your old cards will show a zero balance (or close to it), and the new card will show the transferred amount.
Important: the 0% promotional rate applies only to the transferred balance. Any new purchases you make on the card will be charged the regular interest rate when ready. To make the most of a balance transfer card, do not use it for new spending — treat it as a payoff tool only.
What happens when the promotional period ends
When the 0% period expires, any remaining balance on the card will start accruing interest at the regular rate. If you have paid off the entire transferred balance by then, you owe nothing and the card sits at zero.
If you still owe money when the period ends, your interest charges will jump significantly. For example, if you have $1,500 left on a card with a 20% regular rate, you will start paying roughly $25 per month in interest alone. This is why the promotional period is your window to pay down as much as possible.
Some people use multiple balance transfer cards in sequence — transferring the remaining balance to a new card with another 0% offer before the first period ends. This strategy can work if you have good credit and can manage multiple accounts, but each transfer charges a fee, so the math has to work out in your favor.
Balance transfers versus other debt payoff options
A balance transfer is one way to reduce interest on credit card debt, but it is not the only way. A personal loan, a debt consolidation loan, or a home equity line of credit (if you own a home) may offer lower interest rates and no transfer fee. However, those options require a separate process and may take longer to set up.
A balance transfer card is fastest if you already have good credit and want to move money quickly. A personal loan may be better if your credit is fair or if you want a fixed monthly payment and a set payoff date. Debt consolidation programs run by nonprofits can help if you want to negotiate with creditors, though they typically take longer and may affect your credit score.
The right choice depends on your credit score, how much you owe, how fast you can pay, and whether you want a fixed payment or flexibility. Compare the total cost (fees plus interest) across all options before you decide.
Frequently Asked Questions
Can I transfer a balance from one card to the same card company?
No. You cannot transfer a balance from a Chase card to another Chase card, for example. The balance must come from a different card issuer. If you want to move debt within the same company, you would need to close the old account and open a new one, which is not how balance transfers work.
What if I miss a payment during the promotional period?
Missing a payment can end the 0% promotional rate when ready, even if the period is supposed to last another year. The issuer will also charge a late fee and may report the missed payment to credit bureaus, which will lower your credit score. Make at least the minimum payment on time every month.
Can I transfer a balance if I am still paying off the old card?
Yes. You can transfer a balance even if you are making regular payments on the old card. The transfer pays off the balance you specify, and you stop owing that amount to the old issuer. However, if the old card has a remaining balance after the transfer, you still owe it and will continue to be charged interest on it.
Do balance transfers hurt my credit score?
A balance transfer can temporarily lower your score because the new card process triggers a hard inquiry and adds a new account to your credit report. However, if the transfer lowers your overall credit utilization (the percentage of your total credit limit you are using), your score may recover and even improve over time. The impact is usually small and temporary.
What if I cannot pay off the balance before the promotional period ends?
You will owe interest at the regular rate on any remaining balance. If you know you cannot pay it off in time, consider whether a balance transfer is worth the upfront fee. You might be better off with a personal loan or a different strategy that gives you a longer payoff timeline.