A balance transfer moves debt from one credit card to another, usually to a card offering a lower interest rate for a set period

When you do a balance transfer, you're asking a new credit card company to pay off the balance you owe on an old card. The new card then becomes responsible for that debt. The main reason people do this is to move a high-interest balance to a card with a promotional rate — often 0% interest for 6 to 21 months, depending on the card and the offer. During that period, your monthly payment goes almost entirely toward reducing what you owe instead of paying interest charges.

The catch is that balance transfers aren't free. Most cards charge a balance transfer fee, typically 3% to 5% of the amount you move. So if you transfer $5,000, you might pay $150 to $250 upfront. That fee gets added to your new balance. After the promotional period ends, any remaining balance starts accruing interest at the card's regular rate, which can be 15% to 25% or higher.

Key Takeaways

  • A balance transfer moves your debt to a new card, usually one with a lower interest rate for a limited time.
  • You pay a one-time fee (typically 3% to 5% of the amount transferred) that gets added to your new balance.
  • The promotional 0% rate lasts only as long as the offer states — usually 6 to 21 months — then regular interest kicks in on any remaining balance.
  • You need to pay down the transferred balance during the promotional period, or you'll owe interest on what's left when it ends.

How the balance transfer process actually works

You start by opening a new credit card that offers a balance transfer promotion. During your process, you'll see whether you're approved and what rate and terms you get. Once approved, you contact the new card company and tell them you want to transfer a balance from your old card. You'll provide the old card's account number, the amount you want to move, and sometimes the old card company's contact information.

The new card company then pays off that amount on your old card directly. This usually takes 5 to 14 business days. During this time, you should keep making minimum payments on the old card to avoid late fees — the transfer isn't when ready, and you're still responsible for the balance until it's actually paid. Once the transfer clears, your old card balance drops to zero (or to whatever amount wasn't transferred), and your new card's balance increases by the amount transferred plus the balance transfer fee.

From that point forward, you owe the new card company. Your old card is still open but has a zero balance, which you can leave alone or close later. Closing it when ready can hurt your credit score slightly, so many people leave it open but unused.

When a balance transfer actually saves you money

A balance transfer only makes financial sense if you can pay down the transferred balance before the promotional period ends. Let's say you transfer $3,000 at a 3% fee (costing you $90) to a card with 0% for 12 months. If you pay $250 per month, you'll have the balance gone in 12 months with no interest charges. You save money because you would have paid roughly $450 in interest on that $3,000 at a typical 18% rate on your old card.

But if you transfer $3,000 and only pay $100 per month, you'll still owe about $1,800 when the promotional period ends. That remaining balance then starts accruing interest at the new card's regular rate. You've paid the transfer fee and gained only a few months of interest relief — often a bad trade.

The math works best when you have a clear payoff plan and the promotional period is long enough to execute it. A 0% offer for 21 months gives you more breathing room than one for 6 months, but it also usually comes with a higher transfer fee or stricter approval requirements.

What happens when the promotional period ends

On the day the 0% offer expires, any remaining balance on that card starts accruing interest at the card's standard purchase APR. This rate is set when you open the card and is usually between 15% and 25%, though it can be higher or lower depending on your credit score and the card issuer's terms.

The card company will notify you in writing before the promotional period ends, telling you the exact date and the interest rate that will explore. This is your signal to either pay off the remaining balance before that date or prepare for interest charges going forward. If you still have a substantial balance, you could do another balance transfer to a different card with a new promotional offer — but you'll pay another transfer fee, and each transfer can affect your credit score slightly.

Balance transfer fees and other costs to watch

The balance transfer fee is the main cost, but it's not the only one. If you miss a payment on your new card, you'll owe a late fee (usually $25 to $40 for the first late payment). More importantly, many cards will end your promotional 0% rate early if you miss a payment, meaning the remaining balance when ready starts accruing interest at the full APR. Some cards also charge interest on new purchases you make after the transfer — the 0% rate typically applies only to the transferred balance, not to new spending.

To avoid these traps, set up automatic payments for at least the minimum amount due, and try not to use the new card for new purchases while you're paying down the transferred balance. If you do need to use it, understand that new purchases usually accrue interest from day one at the card's regular rate, separate from the transferred balance.

Who should and shouldn't do a balance transfer

A balance transfer makes sense if you have a high-interest credit card balance, you have a realistic plan to pay it down within the promotional period, and your credit score is good enough to be approved for a card with a strong offer. It's a tool for people who want to reduce interest charges while they work on debt, not a way to avoid paying what you owe.

A balance transfer doesn't make sense if you're going to keep spending on credit cards, if you can't commit to a payoff plan, or if your credit score is too low to may have access to for a card with a meaningful promotional rate. Doing a balance transfer just to move debt around without actually paying it down usually costs you more in fees than you save in interest.

How a balance transfer affects your credit score

Opening a new credit card for a balance transfer will cause a small, temporary dip in your credit score. The card company does a hard inquiry into your credit, which can lower your score by a few points. You also add a new account to your credit history, which lowers your average account age slightly. These effects are usually minor and fade within a few months as you build a payment history on the new card.

The bigger impact comes from your credit utilization ratio — the percentage of your available credit that you're using. If you transfer a balance but don't close your old card, you now have more total available credit, which can actually improve your score. But if you close the old card right away, your available credit drops, which can hurt your score temporarily. For this reason, most people leave the old card open after a transfer.

Frequently Asked Questions

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

No. You can only transfer a balance to a different card issuer. You cannot transfer a balance from a Chase card to another Chase card, for example. You must open an account with a different company — Citi, American Express, Capital One, Discover, or another issuer.

What if I can't pay off the balance before the promotional period ends?

You'll owe interest on whatever remains at the card's regular APR. You can try to do another balance transfer to a different card with a new promotional offer, but you'll pay another transfer fee and go through another process. The better option is to focus on paying down as much as possible during the promotional period, even if you can't eliminate the entire balance.

Does a balance transfer hurt my credit score?

A balance transfer causes a small temporary dip when you explore (from the hard inquiry and new account), but it usually recovers within a few months. Leaving your old card open after the transfer can actually help your score by increasing your available credit. The long-term impact depends on whether you make on-time payments on the new card.

Can I transfer a balance if I have bad credit?

It's harder but sometimes possible. Cards with the best promotional offers typically require good to excellent credit (usually a score of 670 or higher). If your score is lower, you may still find cards that offer balance transfer options, but the promotional rate will likely be shorter or the fee higher. Check what you might be approved for before explore.

What's the difference between a balance transfer and a cash advance?

A balance transfer moves debt from another card to your new card at a promotional rate. A cash advance lets you withdraw cash from your credit card, but it charges a higher fee and interest rate from day one — there's no promotional period. Balance transfers are for moving existing debt; cash advances are for getting cash, and they're almost always more expensive.