What a balance transfer does and when it makes sense

A balance transfer moves debt from one credit card to another, usually one with a lower interest rate. You request the new card issuer to pay off your old card's balance directly. For the next few months — often 6 to 21 months depending on the card — you pay little or no interest on that transferred amount, which means more of your payment goes toward the actual debt instead of interest charges.

A balance transfer makes sense if you carry a balance on a card charging 18% or higher and you can find a card offering 0% interest for at least six months. It also makes sense only if you stop using the old card and commit to paying down the transferred balance before the promotional rate ends. If you transfer $5,000 at 0% for 12 months, you need to pay roughly $417 per month to clear it before interest kicks back in.

A balance transfer does not make sense if you cannot may have access to for a card with a lower rate than what you currently pay, or if you plan to keep spending on the old card. It also does not make sense for small balances — under $500 — because the transfer fee (usually 3% to 5% of the amount moved) eats up the savings.

Key Takeaways

  • A balance transfer moves your debt to a new card with a lower or 0% introductory rate, but you pay a one-time fee of 3% to 5% of the amount transferred.
  • The 0% rate is temporary — usually 6 to 21 months — so you must have a plan to pay down the balance before regular interest rates return.
  • You need decent credit (usually 670 or higher) to be approved for a balance transfer card with a promotional rate.
  • The old card stays open after the transfer, but you should stop using it to avoid running up new debt while you pay down the transferred balance.
  • Calculate your monthly payment target before you explore: divide the transferred amount by the number of months in the promotional period to see if you can afford it.

Check your credit score and find cards that match your situation

Before you search for a balance transfer card, pull your credit report from AnnualCreditReport.com (the only free source required by federal law) and check your score through your bank, credit card issuer, or a free service like Credit Karma or NerdWallet. Most cards offering 0% balance transfer rates require a score of 670 or higher; some require 700 or higher. If your score is below 670, a balance transfer card will likely reject you, and explore will temporarily lower your score further.

Once you know your score range, search for balance transfer cards using comparison sites like NerdWallet, The Points Guy, or Bankrate. Filter by the length of the promotional period (longer is better), the transfer fee (lower is better), and whether the card charges an annual fee. Write down the three to five cards that best fit your situation — for example, a card with 18 months at 0% and a 3% transfer fee, or one with 12 months at 0% and no annual fee.

Read the fine print on each card's website before you explore. Look for the exact date the promotional period ends, what the regular APR (annual percentage rate) will be after that date, and whether the transfer fee applies to all transfers or only the first one. Some cards charge the fee upfront; others add it to your balance.

Calculate whether the transfer will actually save you money

A balance transfer saves money only if the fee and the promotional rate together cost less than what you would pay in interest on your current card. Here is the math: multiply your current balance by your current APR, divide by 12, and multiply by the number of months you plan to carry the balance. That is your interest cost if you stay put. Then multiply your balance by the transfer fee percentage (usually 3% to 5%) to find the one-time cost. Add those two numbers together — that is what staying costs you.

Now calculate the transfer cost: multiply your balance by the transfer fee percentage. If the card charges interest after the promotional period ends and you have not paid it off, add that interest too. If the transfer cost is lower than the cost of staying, the transfer makes sense.

Example: You owe $4,000 at 22% APR on your current card. If you keep it for 12 months, you pay roughly $880 in interest. A balance transfer card charges a 3% fee ($120) and 0% for 12 months. Your total cost is $120. The transfer saves you $760. But you must pay the full $4,000 plus the $120 fee ($4,120 total) within 12 months, or interest will restart at the new card's regular rate.

explore for the card and request the transfer

explore for the balance transfer card directly through the issuer's website. You will need your Social Security number, current income, employment status, and housing information. The issuer will pull your credit report (a hard inquiry) and usually make a decision within minutes to a few days. If you are approved, you will receive a credit limit and an offer to transfer a balance.

Once you have the new card, log into your account online or call the number on the back of the card. Look for a "Balance Transfer" or "Transfer a Balance" option. You will need the account number of the card you are transferring from, the exact balance you want to move, and the name and address of the old card's issuer. Some issuers let you request the transfer online; others require a phone call.

The issuer will contact your old card company and request payment. This usually takes 5 to 14 business days. During this time, keep making minimum payments on your old card to avoid late fees. Once the transfer posts, your old card's balance will drop to zero (or close to it if new charges posted after you requested the transfer).

Make a payment plan and stick to it before the rate changes

The day your balance transfer posts, calculate your monthly payment target. Divide the transferred balance (including the transfer fee if it was added to your balance) by the number of months in the promotional period. Set up automatic payments from your bank account to hit that target every month. Do not rely on remembering to pay — automatic payments are the only reliable way to clear the balance before interest restarts.

Stop using the old card entirely. The temptation to run up new charges while you pay down the transferred balance is real, and it will derail your plan. If you need to use a credit card, use a different one or a debit card. The old card will stay open (which is fine for your credit score), but it should sit unused.

Mark your calendar for one month before the promotional period ends. At that point, check your balance. If you are on track to pay it off, keep going. If you are behind, you have a few options: pay a lump sum if you can, cut other expenses to increase your monthly payment, or look for a second balance transfer card to move any remaining balance before the rate resets. Do not wait until the last day — interest will restart when ready once the promotional period ends.

Understand what happens after the promotional period ends

When the 0% rate expires, any remaining balance will be charged the card's regular APR, which is usually 15% to 25% depending on your credit score and the issuer. If you still owe $1,000 when the rate resets, you will suddenly start paying interest again. This is why the payment plan matters — the whole point is to have the balance at zero or very close to zero before that date.

If you cannot pay off the full balance before the rate resets, you have a few options. You can request a second balance transfer to a different card (though this only works if you still have good credit and can find another card with a promotional rate). You can pay as much as possible in the final month to reduce what carries over. Or you can accept that some balance will restart at the regular rate and focus on paying that down as quickly as possible.

The old card from which you transferred the balance will remain open. Its balance is now zero, which actually helps your credit score because it lowers your overall credit utilization (the percentage of available credit you are using). Keep the account open even after you have paid off the transferred balance — closing it would raise your utilization on your other cards.

Watch out for common mistakes

The most common mistake is running up new charges on the old card while paying down the transfer. The new charges will be at the old card's regular APR, not at 0%, so you end up paying interest on both the transferred balance and the new charges. The second mistake is missing the important date to pay off the balance. Mark it on your calendar and set a phone reminder — one day after the promotional period ends, interest restarts.

A third mistake is explore for multiple balance transfer cards at once. Each process triggers a hard inquiry, which lowers your score temporarily and can make issuers view you as riskier. Space applications out by at least a few weeks if you need more than one card. A fourth mistake is closing the old card after the transfer. This raises your credit utilization and can lower your score, even though the balance is zero.

Finally, do not assume the transfer fee is worth it for small balances. If you owe $800 and the fee is 3%, you pay $24 just to move the debt. Unless the interest savings are much larger than that, a balance transfer is not worth the effort.

Frequently Asked Questions

What if I cannot pay off the full balance before the promotional rate ends?

Any remaining balance will be charged the card's regular APR, usually 15% to 25%. You can request a second balance transfer to a different card if you still have good credit, or you can focus on paying down the remaining balance as quickly as possible. The key is to minimize how much carries over into the higher-rate period.

Does a balance transfer hurt my credit score?

Yes, but usually only temporarily. The hard inquiry from the new card process lowers your score by a few points. Opening a new account also lowers your average account age. However, the transfer itself lowers your utilization on the old card (because its balance drops), which helps your score. Most people see their score recover within a few months if they make on-time payments.

Can I do a balance transfer if I have bad credit?

Most cards offering 0% promotional rates require a score of 670 or higher. If your score is lower, you are unlikely to be approved for a card with a low introductory rate. You may still be approved for a balance transfer card, but it will charge interest from day one. In that case, a transfer does not make financial sense.

What if the card issuer denies my balance transfer request?

This can happen if the old card is with the same issuer as the new card (most issuers do not allow transfers between their own products), or if the old card is closed or in default. Call the new card's customer service line and ask why the transfer was denied. If it is a policy issue, you may need to pay off the old card manually instead.

Should I close the old card after I pay off the transferred balance?

No. Closing the card raises your credit utilization on your remaining cards and can lower your score. Keep the account open and unused. The zero balance actually helps your credit score because it shows you can manage credit responsibly.