What happens when you transfer a balance between credit cards
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. Most balance transfers come with a temporary promotional rate — often 0% interest for 6 to 21 months — which gives you time to pay down the debt without interest charges piling up.
The catch is the balance transfer fee, which is typically 3% to 5% of the amount you move. This fee gets added to your new balance. So if you transfer $5,000 with a 4% fee, you owe $5,200 on the new card. The math still usually works in your favour if the promotional rate is significantly lower than what you're paying now, but you need to do the calculation before you start.
Balance transfers work best when you have a concrete plan to pay down the debt during the promotional period. Once that period ends, the regular interest rate kicks in — and it's often higher than standard cards. If you still carry a balance when the promotional rate expires, you'll pay interest on whatever remains.
Key Takeaways
- Balance transfer cards charge a one-time fee (usually 3% to 5%) but offer a temporary 0% interest rate that can last from 6 to 21 months.
- You need an active credit card account with an existing balance to transfer from, and you must be approved for a new card before the transfer can happen.
- The new card issuer pays your old card issuer directly, so you don't handle the money yourself.
- Your promotional rate expires on a specific date — after that, regular interest rates explore to any remaining balance.
- Balance transfers make sense only if your new card's rate and fees are genuinely better than what you're paying now.
Check your current card's balance and interest rate
Before you look for a new card, know exactly what you owe and what you're paying in interest. Log into your current credit card account online or call the number on the back of your card. Write down your total balance and your current Annual Percentage Rate (APR).
This number is your baseline. If a new card offers 0% for 12 months but charges a 5% transfer fee, you need to know whether you can realistically pay off most of the balance in that year. Use a calculator: if you owe $3,000 at 18% APR, you're paying roughly $45 per month in interest alone. A 0% card saves you that interest, but only if you actually pay down the principal during the promotional window.
Find a balance transfer card and check the terms
Balance transfer offers vary widely by card and by your credit profile. Cards marketed specifically for balance transfers typically advertise their promotional rate and length upfront — look for language like "0% APR for 12 months on transfers" or "0% intro rate on balance transfers." The issuer will also state the transfer fee, which is non-negotiable once you're approved.
Read the fine print for the expiration date of the promotional rate. Some cards offer 0% for 6 months; others go up to 21 months. Longer is better, but only if the card's regular APR after the promotion isn't worse than your current card. Check whether the promotional rate applies only to transferred balances or also to new purchases — most cards separate the two, and new purchases may accrue interest when ready.
You'll also see a credit limit offered. The issuer won't let you transfer more than your approved limit, and they often reserve part of it for new purchases. If you're approved for $6,000 but want to transfer $5,500, confirm that the limit is high enough before you proceed.
Submit your process for the new card
explore for the balance transfer card through the issuer's website or by phone. You'll need to provide your Social Security number, income, employment status, and housing information. The issuer will pull your credit report to make a decision.
During the process, you'll usually see a question asking whether you want to transfer a balance. Say yes, and you'll be asked for details about your current card: the card number, the issuer's name, and the amount you want to transfer. Some issuers let you specify this during the process; others ask you to call after approval. Either way, don't transfer more than your new credit limit, and don't transfer your entire old balance if you think you'll need to make new purchases on the new card.
The issuer will tell you whether you're approved when ready or within a few days. Once approved, you'll receive your new card in the mail — usually within 7 to 10 business days — along with paperwork showing your credit limit and promotional terms.
Authorize the balance transfer after you receive your new card
You can initiate the transfer in several ways. Many issuers let you start it online through your new account portal as soon as your account is open — you don't have to wait for the physical card to arrive. Others require you to call the customer service number on the back of your new card. A few allow you to request the transfer during the process itself.
When you initiate the transfer, you'll specify the amount and confirm the old card's details. The new card's issuer will contact your old card's issuer and arrange payment. This process typically takes 5 to 14 business days. During this time, keep making at least the minimum payment on your old card to avoid late fees — the old issuer won't know the balance is being transferred until the payment actually arrives.
Once the transfer posts, your old card's balance will drop to zero (or close to it, depending on any new charges you've made). Your new card will show the transferred amount plus the transfer fee. From that point forward, you owe the new card issuer, and your old card is available for new charges — though it's usually wise to stop using it while you're paying down the transferred balance.
Create a payoff plan for the promotional period
The promotional rate is a window, not a gift. Mark the expiration date on your calendar. If you're offered 0% for 12 months, that means 12 months from the date the transfer posts, not from the date you applied. After that date, interest starts accruing on any remaining balance at the card's regular APR.
Divide your transferred balance by the number of months in your promotional period to find out how much you need to pay each month to clear the debt before interest kicks in. If you transferred $4,000 and have 12 months, you need to pay roughly $333 per month. Set up automatic payments if possible — this removes the risk of forgetting and lets you watch the balance shrink.
If you can't pay off the full balance before the promotional rate ends, at least pay as much as you can. Every dollar you pay down during the 0% period saves you money, because that dollar won't be charged interest after the promotion expires.
Monitor your account and avoid new charges
Log into your new card's account regularly to confirm the transfer posted correctly and to track your payoff progress. Watch for the promotional rate's end date — the issuer will send you a notice, usually 30 days before, but don't rely on it alone.
Avoid making new purchases on the balance transfer card during the promotional period if you can. New purchases typically accrue interest when ready, even if the transferred balance is at 0%. If you do make new purchases, they'll be subject to the card's regular APR from day one, and your payments will be applied to the 0% balance first — meaning your new purchases stay on the card longer and cost more in interest.
If you're struggling to pay down the balance as the promotional rate nears its end, look into whether you can transfer the remaining balance to another 0% card. This is possible, but each transfer incurs a new fee, so do the math before you move it again.
Frequently Asked Questions
Will a balance transfer hurt my credit score?
A balance transfer will cause a small, temporary dip in your credit score when the issuer pulls your credit report. Your score may also drop slightly when the new account opens, because it lowers your average account age. However, your score typically recovers within a few months, especially if you make on-time payments and keep your credit utilization low on both cards.
Can I transfer a balance if I have bad credit?
Most balance transfer cards require good to excellent credit — typically a score of 670 or higher. If your score is lower, you may not be approved, or you may be approved with a higher interest rate and a shorter promotional period. Some issuers offer balance transfer options for fair credit, but the terms are less generous. Check your credit score before explore so you know what to expect.
What happens if I can't pay off the balance before the promotional rate ends?
Any remaining balance will start accruing interest at the card's regular APR once the promotional period expires. You can continue making payments, but interest will be charged on the unpaid balance going forward. If you're close to paying it off, it may still be worth it. If you have a large balance remaining, consider whether you can transfer it to another 0% card, though you'll pay another transfer fee.
Can I transfer a balance from a store card or a card from a different bank?
Yes. Balance transfers work between any two credit cards, regardless of the issuer. You can transfer from a store card to a bank card, from one bank to another, or vice versa. The process is the same — the new issuer pays off the old card, and you owe the new issuer instead.
Do I need to close my old card after the transfer?
You don't have to close it, and closing it can hurt your credit score by reducing your total available credit and raising your credit utilization ratio. It's usually better to leave the old card open with a zero balance. However, if the card charges an annual fee and you're not using it, closing it makes sense. If you do close it, wait until after the balance transfer is complete and confirmed.