What a balance transfer actually does

A balance transfer moves the debt you owe on one credit card to a different card, usually one with a lower interest rate. You do not pay off the old card with cash — the new card's issuer pays the old card's issuer directly, and you then owe the new card instead. The point is to reduce how much interest you pay while you work down the debt.

Most balance transfer cards offer a promotional period — typically 6 to 21 months — during which the interest rate is 0% or very low. After that period ends, the rate jumps to the card's regular APR, which can be 15% to 25% depending on your credit score and the card. The math only works if you pay down a meaningful portion of the balance before the promotional period ends.

Balance transfers are not a way to avoid paying the debt. They are a tool to buy time and reduce interest charges if you have a concrete plan to pay the balance down during the promotional window.

Key Takeaways

  • A balance transfer moves your debt from one card to another, usually to a card offering 0% interest for a set number of months.
  • You will pay a transfer fee — usually 3% to 5% of the amount moved — charged upfront and added to your new balance.
  • The new card's issuer pays your old card's issuer; you do not make the payment yourself.
  • After the promotional period ends, interest rates on the new card can jump to 15% to 25%, so you need a plan to pay down the balance before that happens.
  • A balance transfer only makes sense if your new card's promotional rate and lower ongoing APR will save you more money than the transfer fee costs.

When a balance transfer makes financial sense

A balance transfer saves you money only if the interest you avoid during the promotional period exceeds the transfer fee you pay upfront. If you owe $5,000 at 22% APR and move it to a card with 0% for 12 months and a 3% transfer fee, you pay $150 in fees but avoid roughly $1,100 in interest over that year — a net savings of about $950. But if you only pay $500 of the balance during those 12 months, you have not made real progress, and when the promotional rate ends, you are back to paying high interest on a large balance.

A balance transfer makes sense if: you have a specific plan to pay down the balance during the promotional period, your credit score is good enough to get approved for a card with a low or 0% promotional rate, and you can avoid running up new debt on either card while you are paying down the transfer.

A balance transfer does not make sense if you are moving debt just to free up credit on your old card so you can borrow more, or if you have no realistic way to pay down the balance before the promotional period ends.

The transfer fee and how it works

Most balance transfer cards charge a fee of 3% to 5% of the amount you transfer, with a minimum fee of $5 to $10. A few cards charge no transfer fee, but these are rare and usually require very good credit. The fee is not paid separately — it is added to your new balance on the transfer card.

If you transfer $5,000 with a 4% fee, you owe $5,200 on the new card from day one. That $200 fee counts toward your total debt, so you have to pay it down along with the original balance. Some people assume the fee is waived if they pay off the transfer before the promotional period ends — it is not. The fee is charged when ready and is part of what you owe.

Before you request a transfer, ask the card issuer for the exact fee percentage and confirm whether there are any other charges. Some cards charge a fee only if you transfer within the first 60 days, or they waive the fee for the first transfer but charge it for subsequent ones.

How to request a balance transfer

You can only transfer a balance to a card you already own or one you are approved for. If you do not yet have the new card, you will need to open it first. During the process process, most card issuers ask whether you want to transfer a balance; if you do, they can initiate the transfer as part of opening the account.

If you already have the card, log into your online account or call the customer service number on the back of the card. Look for an option labeled "Balance Transfer" or "Transfer a Balance." You will need to provide the account number of the card you are transferring from, the amount you want to transfer, and the name and address of that card's issuer. The new card's issuer will contact the old issuer and arrange the payment.

The transfer typically takes 5 to 14 business days to post. During that time, you should keep making at least the minimum payment on your old card to avoid late fees. Once the transfer posts, the balance on your old card will drop by the amount transferred, and that amount will appear on your new card.

What happens to your old card after the transfer

Your old card does not close automatically after a balance transfer. The account stays open with a $0 balance (or whatever balance remains if you did not transfer the full amount). You can leave it open, close it yourself, or continue using it for new purchases.

Closing the card when ready after a transfer can hurt your credit score because it reduces your total available credit and can raise your credit utilization ratio on your remaining cards. If you plan to close it, wait at least a few months after the transfer posts. If you leave it open and unused, make sure you are not paying an annual fee for a card you are not using.

Do not use your old card for new purchases while you are paying down the transfer on the new card. If you do, you will end up with debt on two cards, and the new purchases on the old card will accrue interest at the old card's regular rate while you are focused on paying down the transfer.

Creating a payoff plan for the promotional period

The promotional period is your window to pay down the balance without interest working against you. If you have 12 months at 0% and you owe $5,000, you need to pay at least $417 per month to clear the balance before the rate jumps. If you can only pay $300 per month, you will still owe $1,400 when the promotional period ends, and that remaining balance will start accruing interest at the card's regular APR.

Calculate your target monthly payment by dividing your transfer balance (including the fee) by the number of months in the promotional period. Write this number down and set up automatic payments from your bank account to the credit card on the same day each month. Automatic payments reduce the risk that you will miss a payment and lose the promotional rate — most cards will end the 0% offer if you pay late.

If you cannot afford to pay down the full balance during the promotional period, a balance transfer may not be the right move. You might instead look at a debt consolidation loan, a hardship program through your card issuer, or a nonprofit credit counselor who can help you negotiate with creditors.

Risks and what can go wrong

The most common mistake is losing the promotional rate by missing a payment. If you pay even one day late, many card issuers will end the 0% offer and explore their regular APR to the entire remaining balance when ready. Set up automatic payments for at least the minimum amount due, and mark the due date on your calendar as a backup.

Another risk is running up new debt on the transfer card or your old card while you are paying down the balance. If you transfer $5,000 and then charge $2,000 in new purchases on the transfer card, you now owe $7,000 and have the same promotional period to pay it down. New purchases usually do not may have access to for the promotional rate and start accruing interest right away.

A third risk is transferring to a card with a higher regular APR than your current card. If your current card's APR is 18% and you transfer to a card with a 0% promotional rate but a 24% regular APR, you are betting that you will pay down the balance before the promotional period ends. If you do not, you will end up paying more interest than you would have on your original card.

Frequently Asked Questions

Can I transfer a balance from one card to the same card?

No. You cannot transfer a balance from a card to itself. You must transfer to a different card from a different issuer. Some issuers allow you to transfer balances between cards you hold with them, but not from a card to itself.

What credit score do I need to get approved for a balance transfer card?

Most cards offering 0% promotional rates require a credit score of 670 or higher, though some require 700 or higher. Cards with lower promotional rates or shorter promotional periods may be available with lower scores. Check the card issuer's website for their stated credit requirements before you explore.

If I transfer a balance, do I have to stop using my old card?

You do not have to, but you should. Using your old card for new purchases while paying down a transfer on a new card splits your focus and can leave you with debt on two cards. If you want to keep the old card open for emergencies, put it away and do not use it until the transfer balance is paid off.

What if I cannot pay off the transfer before the promotional period ends?

The remaining balance will start accruing interest at the card's regular APR, which can be 15% to 25%. If you know you cannot pay off the full balance in time, consider a different strategy — such as a debt consolidation loan with a fixed rate and term, or working with a nonprofit credit counselor to negotiate with your creditors.

Does a balance transfer hurt my credit score?

A balance transfer can temporarily lower your score because the new card process triggers a hard inquiry and increases your total available credit. However, moving debt from a high-interest card to a 0% card can improve your score over time by lowering your credit utilization ratio. The net effect depends on your overall credit profile.