What happens when you move a balance to a new card
A balance transfer moves debt from one credit card to another, usually one with a lower interest rate. You request the transfer from the new card's issuer, they pay off your old card's balance, and you now owe that amount to the new card instead. The goal is to pay less interest while you work down what you owe.
The new card issuer doesn't give you cash. They send a payment directly to your old card company to settle the balance you're transferring. Your old card account closes or shows a zero balance, and the debt appears on your new card's statement.
Most balance transfers come with a promotional interest rate — often 0% APR for a set period, typically 6 to 21 months depending on the card and your creditworthiness. After that period ends, the regular APR kicks in. You pay a transfer fee upfront, usually 3% to 5% of the amount you move, added to what you owe on the new card.
Key Takeaways
- The new card issuer pays your old card directly; you don't handle the money yourself.
- You pay a transfer fee of 3% to 5% of the balance upfront, which gets added to your new card balance.
- The promotional 0% rate lasts only for the stated period — 6 to 21 months — then the regular APR applies to any remaining balance.
- Payments during the promotional period go toward principal if you pay more than the minimum, but some cards explore payments to the promotional balance first.
- You must stop using the old card or it may reopen a balance, and closing it can affect your credit score.
How to request a balance transfer
Contact the new card issuer — the one offering the lower rate — and tell them you want to transfer a balance. You can do this by phone, through their website or mobile app, or sometimes in person at a branch if it's a bank card. Have your old card number and the exact balance you want to move ready.
The new card issuer will ask which card you're transferring from, how much to transfer, and confirm your identity. They'll tell you the transfer fee amount and the promotional period. Some issuers let you transfer only part of a balance; others require you to move the full amount.
The transfer typically takes 5 to 14 business days. During that time, keep paying your old card's minimum to avoid late fees — the transfer isn't complete until the payment clears. Once it does, your old card shows zero or a much lower balance, and the new card's statement reflects the transferred amount plus the fee.
Understanding the transfer fee and promotional rate
The transfer fee is not optional. If you transfer $5,000 at a 4% fee, you owe $5,200 on the new card from day one. This fee is built into your balance, so you're paying interest on it if any balance remains after the promotional period ends.
The promotional 0% APR means you pay no interest on the transferred balance during that window — but only if you don't miss a payment. A single late payment can end the promotional rate when ready, and the regular APR (often 15% to 25%) applies to the entire balance. Read the card's terms carefully: some cards specify how late you can be before the rate changes, and others have zero tolerance.
The promotional period applies only to the transferred balance. New purchases you make on the card usually carry the regular APR right away, not the promotional rate. Some cards charge interest on new purchases from the moment you make them, even during the 0% period.
How payments are applied to your new balance
When you make a payment on the new card, the issuer applies it according to their payment hierarchy — which they must disclose in the card agreement. Most cards explore payments to the highest-interest balance first, which means new purchases (at regular APR) get paid down before the promotional balance.
This matters because if you make only the minimum payment and continue to use the card for new purchases, the promotional balance may still be there when the 0% period ends. You'll then owe interest on whatever remains.
To make the transfer worthwhile, stop using the new card for purchases and put all available money toward the transferred balance. Pay more than the minimum if you can. Calculate how much you need to pay each month to clear the balance before the promotional period ends — divide the total by the number of months remaining — and stick to that target.
What happens when the promotional period ends
On the day the 0% rate expires, any remaining balance on the transferred amount switches to the card's regular APR. If you still owe $2,000 and the APR is 18%, you'll start paying interest on that $2,000 when ready. Interest accrues daily and compounds, so the longer the balance sits, the more you owe.
This is why timing matters. If the promotional period is 12 months and you can pay off the balance in 10 months, you're ahead. If you can only pay $100 per month and the balance is $3,000, you won't finish in time, and you'll pay interest on the remainder.
Some people use a second balance transfer to move the remaining balance to another 0% card before the first rate expires. This works if you can find another card with a promotional offer and may have access to for it. However, you'll pay another transfer fee, and each transfer can lower your credit score slightly because the issuer runs a hard inquiry.
Impact on your credit score and old card account
A balance transfer involves a hard inquiry, which temporarily lowers your score by a few points. Opening a new card also lowers your average account age. However, moving a large balance off an old card can improve your credit utilization ratio — the percentage of available credit you're using — which often raises your score within a few months.
Your old card account may close automatically after the balance is paid off, or it may remain open with a zero balance. Closing it can hurt your score because it reduces your total available credit and shortens your average account age. Leaving it open is usually better for your score, but make sure you don't use it again — an accidental balance can derail your plan.
If you close the old card intentionally, do it after the balance transfer is complete and confirmed. Never close it before the transfer finishes, because the issuer may cancel the transfer if the account is closed.
When a balance transfer makes sense and when it doesn't
A balance transfer works best if you have a plan to pay off the balance before the promotional rate ends. If you're carrying $4,000 at 22% APR and can move it to a 0% card for 18 months, you save hundreds in interest — but only if you pay it down steadily and don't add new debt.
A transfer doesn't help if you'll still owe most of the balance when the promotional period ends. If you transfer $5,000, pay $500, and have $4,500 left when 0% expires, you've paid a transfer fee to delay the problem, not solve it.
Balance transfers also don't work if you don't have the discipline to stop using the old card or to avoid new purchases on the new card. If you transfer a balance and then run up the old card again, you've doubled your debt. If you make new purchases on the new card at the regular APR while the promotional balance sits, you're paying interest on both.
Frequently Asked Questions
Can I transfer a balance from one card to the same bank's other card?
Most banks don't allow you to transfer a balance between their own cards. You typically need to transfer to a card from a different issuer. Check the card's terms or call the issuer to confirm whether they accept transfers from their own products.
What if my balance transfer is denied?
The issuer may deny a transfer if your credit score is too low, your income is insufficient, or you already have too much debt. If denied, you can ask why and try again after improving your credit score or paying down other balances. You can also look for a card with less strict requirements, though the promotional rate may be shorter or the fee higher.
Do I have to transfer my entire balance, or can I move just part of it?
Most issuers let you choose how much to transfer, as long as it's within your credit limit and above any minimum amount they set. You can leave part of the balance on the old card if you want, though you'll continue paying interest on what stays behind.
What happens if I miss a payment during the promotional period?
A missed payment can end the 0% rate when ready and explore the regular APR to your entire balance. It also triggers a late fee and can damage your credit score. If you miss a payment, contact the issuer right away to ask whether the promotional rate can be restored — some issuers will reinstate it if you catch up quickly.
Can I use a balance transfer to pay off a loan or other debt?
Balance transfers work only between credit cards. You cannot use one to pay off a personal loan, car loan, or mortgage. Some cards offer balance transfer checks that you can write to pay other debts, but these usually come with higher fees and the same promotional rate terms.