What a balance transfer is and how it works

A balance transfer moves debt from one credit card to another, usually a card with a lower interest rate. You request the transfer from the new card's issuer, they pay off the old card's balance on your behalf, and you then owe that amount to the new card instead. The old account stays open unless you close it, but the balance drops to zero.

The mechanics are straightforward: the new card's issuer contacts your old card's issuer, confirms the balance, and sends a payment directly to that account. This typically takes 5 to 14 business days to complete. During that time, you still owe the old card — do not stop paying it until the transfer shows as complete on both accounts.

The main reason to do this is to move your debt to a card with a lower ongoing interest rate, or to take advantage of a promotional period — often 0% APR for 6 to 21 months — that the new card offers to balance transfer customers. After the promotional period ends, the regular APR kicks in.

Key Takeaways

  • A balance transfer moves your debt from one card to another and typically takes 5 to 14 business days to complete.
  • Most cards charge a balance transfer fee of 3% to 5% of the amount you move, added to your new balance immediately.
  • Promotional 0% APR periods last anywhere from 6 to 21 months depending on the card, then the regular rate applies.
  • You must continue paying your old card until the transfer completes, and the old account remains open unless you close it.
  • A balance transfer does not reduce what you owe — it only changes which card holds the debt and at what interest rate.

Balance transfer fees and how they affect your total debt

Nearly every card that accepts balance transfers charges a balance transfer fee, usually 3% to 5% of the amount transferred. This fee is added to your new balance on day one. If you transfer $5,000 at a 4% fee, you immediately owe $5,200 on the new card.

Some cards offer a 0% balance transfer fee for a limited time — typically the first 60 days after opening the account — but this is rare and usually only for customers with strong credit. Check the card's terms before you apply; the fee is listed in the pricing section of the disclosure document.

The fee makes sense only if the interest you save over the promotional period exceeds what you pay upfront. If you transfer $5,000 at a 4% fee ($200) to a card with 0% APR for 12 months, you save roughly $600 to $800 in interest compared to staying on a card charging 18% to 20% APR — a net gain even after the fee. If you transfer to a card with only a slightly lower rate and no promotional period, the fee may cost more than you save.

How to request a balance transfer

You can request a balance transfer in three ways: online through the new card's website or app, by phone to the card issuer's customer service line, or by mail using a balance transfer check (if the card offers one).

Online is fastest. Log into your new card account, look for a "Transfers" or "Balance Transfer" section, and enter the old card's account number, the amount you want to transfer, and the old card issuer's name. The system will confirm the request and give you an estimated completion date. You will receive a confirmation email within a few hours.

By phone, call the number on the back of your new card and tell the representative you want to transfer a balance. Have your old card number and the amount ready. They will verify your identity, confirm the old card issuer, and process the request on the spot. You will receive written confirmation by mail within 5 to 7 business days.

Balance transfer checks work like regular checks but draw from your available credit on the new card. Write the check to your old card issuer, mail it, and the funds are credited as a balance transfer (not a cash advance, which carries a higher fee and rate). This method is slower — 10 to 14 days — and requires you to track the check in the mail.

What happens during the transfer period

Once you request a transfer, the new card's issuer begins processing it. You will see a pending transfer on your new card's account within 24 to 48 hours. During this time, the amount is reserved but not yet paid to your old card.

Keep paying your old card as normal during this period. The old card's issuer does not know a transfer is coming until the payment actually arrives, so missing a payment could damage your credit score and trigger a late fee. If your old card's due date falls before the transfer completes, make at least the minimum payment.

The transfer completes when the new card's issuer sends the payment to your old card. This shows as a credit on your old card's statement, dropping the balance to zero (or to any remaining balance if you only transferred part of it). At the same time, the transferred amount appears as a balance on your new card. Both changes typically show within 5 to 14 business days, though some issuers take up to 21 days.

Promotional periods and what happens when they end

A promotional APR is a temporary interest rate — usually 0% — offered for a set number of months after you open a card or complete a balance transfer. During this period, interest does not accrue on the transferred balance, even if you make only minimum payments.

The promotional period is fixed. A card might offer 0% APR for 12 months on balance transfers; after 12 months, the regular APR applies to any remaining balance. The regular rate is disclosed in the card's terms and typically ranges from 16% to 24%, depending on your creditworthiness and the card's standard pricing.

If you still carry a balance when the promotional period ends, interest begins accruing immediately at the regular rate. A $3,000 balance at 20% APR costs roughly $50 per month in interest alone. This is why balance transfers work best if you have a plan to pay down the balance before the promotional period expires.

Deciding whether a balance transfer makes sense for you

A balance transfer is worth doing if three things are true: the new card's interest rate (after any promotional period) is lower than your current card's rate, the promotional period is long enough for you to pay down a meaningful portion of the balance, and the balance transfer fee is smaller than the interest you would otherwise pay.

Do the math before you apply. If you owe $4,000 on a card charging 22% APR and you can pay $300 per month, you will pay roughly $1,200 in interest over 15 months. A balance transfer to a card with 0% APR for 18 months and a 4% fee costs $160 upfront but saves you $1,040 in interest — a net savings of $880. That is worth doing.

A balance transfer does not make sense if you cannot commit to paying down the balance before the promotional period ends, or if you are likely to run up new balances on the old card while paying off the transferred balance. Transferring debt without changing spending habits simply moves the problem to a new card.

Managing multiple cards after a transfer

After a balance transfer completes, you have two active accounts: the old card with a zero balance and the new card with the transferred balance. Both remain open and both affect your credit score.

Keep the old card open even though the balance is zero. Closing it reduces your available credit, which raises your credit utilization ratio (the percentage of your total credit limit that you are using). A higher utilization ratio can lower your credit score. The old card also contributes to the length of your credit history; closing it removes that history from your profile.

Do not use the old card for new purchases while you are paying off the transferred balance on the new card. New charges on the old card complicate your payoff plan and can trigger late fees if you forget to pay it. If you must keep the old card active, use it occasionally for a small purchase and pay it off in full each month.

On the new card, focus all your payments on the transferred balance. Any new purchases you make on the new card typically do not receive the promotional 0% APR — they accrue interest at the regular rate immediately. Avoid new charges until the transferred balance is paid off.

Frequently Asked Questions

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

Most issuers do not allow you to transfer a balance between their own cards. You cannot transfer a balance from one Chase card to another Chase card, for example. You must transfer to a card from a different issuer. Check the new card's terms to confirm whether it accepts transfers from your current issuer.

What if my balance transfer is denied?

A transfer can be denied if the new card's issuer cannot verify the old card's account, if the transfer amount exceeds your available credit limit on the new card, or if the old card issuer does not accept transfers. Call the new card's customer service line to ask why the transfer was denied. If the issue is a credit limit, you may be able to request a limit increase and try again.

Does a balance transfer hurt my credit score?

A balance transfer causes a small, temporary dip in your credit score because the new card issuer runs a hard inquiry and opens a new account. This dip typically recovers within 3 to 6 months. Over time, a balance transfer can improve your score if it lowers your overall credit utilization ratio — moving debt off a maxed-out card to a new card with more available credit helps your score.

Can I transfer a balance if I am behind on payments?

Most issuers will not process a balance transfer if your account is 30 or more days past due. Bring your account current before requesting a transfer. If you are struggling to make payments, contact your current card issuer about hardship options before pursuing a transfer.

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

Interest begins accruing at the regular APR once the promotional period expires. You can request another balance transfer to a different card with a new promotional period, but each transfer charges a fee and requires a new application. It is more cost-effective to focus on paying down the balance as aggressively as possible during the promotional period, even if you cannot eliminate it entirely.