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Balance Transfer Credit Cards: How They Work, Fees (2026)

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Credit card and calculator on a desk illustrating a 0% balance transfer and the fee cost

Last reviewed: September 29, 2026

A balance transfer credit card lets you move debt from one card to another card that charges little or no interest for a set time. Used well, it can save you hundreds or even thousands in interest. Used badly, it can cost you a fee, a hit to your credit score and a higher rate later on.

This guide explains how a balance transfer works, what it really costs, what the rules say in the United States and the United Kingdom, and how to decide if one makes sense for you. We checked every card offer and every rule in this article on the issuers' and regulators' own websites on September 29, 2026. Offers change often, so always confirm the terms on the issuer's page before you apply.

This article is general information, not personal financial advice.

Short answer

A balance transfer moves what you owe on one or more credit cards to a new card with a low or 0% introductory rate. You usually pay a one-off balance transfer fee. In the US, the fee on the cards we checked was 3% or 5% of the amount moved (with a $5 minimum). In the UK, the fees we saw ranged from 1.49% to 3.45%. The 0% period on the US cards we checked ran from 15 to 21 months. In the UK, some cards advertised "up to" 36 months. When the promotion ends, any balance left starts to be charged at the card's normal rate, which was roughly 15% to 28% APR on the US cards we checked. A transfer only saves money if you pay off most or all of the debt before the 0% period ends, make every payment on time and avoid adding new debt.

What is a balance transfer credit card?

The Consumer Financial Protection Bureau (CFPB) describes a balance transfer simply. It lets you move an outstanding balance from one credit card to another, sometimes for a fee. A balance transfer credit card is a card that offers a special, lower interest rate on balances you move onto it. Most of these offers are "0% intro APR" deals that last for a fixed number of months.

The idea is easy to follow. Credit card debt is expensive. According to the Federal Reserve's G.19 consumer credit release (published September 8, 2026), the average interest rate on credit card accounts that were charged interest at US commercial banks was 22.15% in the second quarter of 2026. At that rate, a large part of each payment goes to interest instead of the debt itself. If you move that debt to a card that charges 0% for 18 or 21 months, every dollar you pay during that time goes toward the balance.

The new card does not make the debt disappear. It changes who you owe and how much interest you pay for a while. The debt is still yours. The goal is to use the interest-free window to pay it down faster.

Who offers balance transfer cards?

Most large card issuers have at least one card with a balance transfer offer. In the US, this includes banks such as Citi, Wells Fargo, Chase, Bank of America, U.S. Bank and Discover. In the UK, Barclaycard, HSBC UK and MBNA all market balance transfer cards. Some cards are built mainly for transfers and have few rewards. Others are rewards or cash back cards that also have an intro APR on transfers for a shorter time.

Balance transfer vs "0% on purchases"

Many cards have two separate intro offers. One covers balance transfers. The other covers new purchases. They often have different lengths. For example, on the day we checked, Citi's Diamond Preferred card offered 0% for 21 months on balance transfers but only 12 months on purchases. Read both lines of the offer. They are not the same thing.

How does a balance transfer work?

Here is what happens, in plain terms, when you do a balance transfer.

  1. You apply for a card that has a balance transfer offer. The issuer checks your credit and decides whether to approve you and how high your credit limit will be.
  2. You ask the new issuer to pay off a specific amount on your old card. You usually give the old card's account number and the amount. You can often do this in the application, online or in the app after approval.
  3. The new issuer sends the money to your old card company. The old card balance goes down by that amount.
  4. The same amount, plus the balance transfer fee, appears on your new card as a "balance transfer" balance. It is charged the promotional rate, often 0%.
  5. You make monthly payments on the new card. When the promotion ends, any balance still left is charged the card's standard rate for balance transfers.

How long does a balance transfer take?

It varies by issuer. Wells Fargo says it can take up to 14 days to post a balance transfer to a Reflect card account. Chase's pricing terms for its Slate card say transfers will be applied and sent to your payees 10 days after the new card is mailed. MBNA in the UK says that, once approved, a transfer will normally arrive the next working day. Until you see the transfer complete on both accounts, keep paying at least the minimum on your old card. A missed payment on the old card still counts as a late payment on your credit record.

What debts can you transfer?

Most issuers let you transfer balances from other credit cards. Some also accept certain store cards. MBNA says you can usually transfer from cards that carry a Mastercard, American Express or Visa logo, and some store cards.

There is one rule almost every issuer applies. You cannot transfer a balance between two cards from the same bank or banking group. Bank of America says its balance transfers may not be used to pay any account provided by Bank of America. HSBC UK says balances cannot be transferred from cards issued by members of the HSBC Group, including HSBC UK, first direct and M&S Bank. If your debt is with one bank, you need a card from a different bank.

How much can you transfer?

You can only transfer up to your credit limit, and often less. The fee usually counts against the limit too. Wells Fargo says approved transfers are issued up to your available credit and will include any balance transfer fees. MBNA says you can only transfer up to 93% of your credit limit and the minimum transfer is £100. Australia's Moneysmart gives an example of a card that caps transfers at 80% of the available credit. You will not know your credit limit until you are approved, so you may only be able to move part of your debt.

Is there a deadline to make the transfer?

Yes, almost always. The 0% rate usually applies only to transfers made within a short window after you open the account. On the day we checked:

  • Citi Diamond Preferred and Citi Simplicity: transfers must be completed within the first 4 months of account opening.
  • Wells Fargo Reflect: transfers made within 120 days of account opening qualify.
  • Bank of America BankAmericard and U.S. Bank Shield Visa: transfers must be made within 60 days of account opening.
  • Chase Freedom Unlimited: the lower 3% fee applies to transfers made within 60 days.
  • Barclaycard Platinum and HSBC UK Balance Transfer card: transfers must be made within 60 days to get the 0% offer.

Transfers made after the window may get the standard rate and a higher fee. Plan to move the debt as soon as the card is open.

What a balance transfer really costs

A 0% offer is not free. There are four things that decide the true cost: the transfer fee, the length of the intro period, the "go-to" rate after it ends, and what happens if you slip up. Here is each one.

1. The balance transfer fee

Most cards charge a one-off fee on every amount you transfer. It is a percentage of the transfer, usually with a small minimum. The CFPB confirms that a card company is allowed to charge a balance transfer fee even on a 0% rate offer.

On the US cards we checked, the fee was either 3% or 5%, with a $5 minimum. Some cards charge 3% for transfers made early, then 5% later. On a $5,000 transfer, 3% is $150 and 5% is $250. The fee is added to the balance on your new card, so you will need to pay it off along with the debt.

In the UK, fees on the Barclaycard and HSBC cards we checked ranged from 1.49% to 3.45%. There is often a trade-off: a longer 0% period tends to come with a higher fee, and a shorter period with a lower fee. For example, Barclaycard listed a Platinum card with up to 22 months at 0% and a 1.49% fee, and another with up to 36 months at 0% and a 3.15% fee.

2. The length of the intro period

The intro period is how long the promotional rate lasts. On the US cards we checked it ranged from 15 months to 21 months. Some US issuers count it in months from account opening. Others, such as Bank of America and U.S. Bank, count it in billing cycles. Twenty-one billing cycles is close to, but not always exactly, 21 months, so check your statements for the end date.

In the UK, many offers are advertised as "up to" a number of months. HSBC UK and Barclaycard both said the rate and promotional period they offer depend on their assessment of your circumstances. You might be approved with a shorter 0% period than the headline.

3. The go-to APR after the offer ends

When the promotion ends, any remaining balance starts to be charged the card's standard APR for balance transfers. In the US this is usually a variable rate tied to the prime rate, and it depends on your credit. The ranges on the US cards we checked ran from 14.99% at the low end (BankAmericard) to 28.49% at the high end (Citi Simplicity and Wells Fargo Reflect). You will only know your exact rate once you are approved.

In the UK, card adverts show a "representative APR". It is a guide to the typical cost, and you may be offered a different rate. The representative APR on the HSBC UK Balance Transfer card was 25.9% (variable), and on the Barclaycard Platinum cards we checked it was 24.9% (variable), each based on an assumed £1,200 credit limit.

4. What happens after the offer ends

Nothing dramatic happens on the last day. The interest rate on the leftover balance simply rises to the standard rate. From then on you pay interest each month on whatever is left. In the US, a true 0% intro APR does not charge back interest for the promotional months. That is different from "deferred interest" deals, which we explain in the US rules section below.

Moneysmart in Australia gives a clear warning. If you do not pay off the card during the promotional period, you will be charged a higher interest rate on the balance, which may end up costing you more.

Hidden cost: interest on new purchases

This catches many people. If you carry a transferred balance, you may lose the "grace period" on new purchases. The CFPB explains that if you normally avoid interest by paying in full each month, you will be charged interest on purchases unless you pay the entire balance, including the transferred balance, in full by the due date. Citi's own terms say the same thing. Wells Fargo's FAQ says that to avoid interest on purchases you must pay the entire outstanding balance, including any balance transfer and balance transfer fee.

Some cards soften this with a separate 0% intro rate on purchases. But once that shorter purchase offer ends, new spending can start costing interest right away. The simplest fix is to not use a balance transfer card for new purchases at all.

Other costs to check

  • Late fees. Wells Fargo lists a late payment fee of up to $40 on the Reflect card. Chase lists up to $40 on the Slate card. Citi Simplicity says it has no late fees.
  • Penalty APR. Citi Diamond Preferred and Chase Slate list a penalty APR of up to 29.99%. Bank of America says the BankAmericard has no penalty APR. Citi Simplicity says it has no penalty rate.
  • Annual fee. All the US cards in our table had a $0 annual fee.
  • Foreign transaction fees. Citi Diamond Preferred and Wells Fargo Reflect each list a 3% fee on foreign purchases. This matters only if you plan to use the card abroad.

A quick break-even test

You can check whether a transfer saves money with two numbers.

  1. Work out the fee: balance times the fee percentage. On $5,000 at 3%, that is $150.
  2. Estimate the interest you would pay on your current card over the same period if you kept paying the same amount each month. You can get this from your card's statement or an online calculator.

If the interest you would pay is clearly higher than the fee, the transfer can save money, as long as you stick to the plan. If the interest is small, perhaps because the balance is small or you can clear it in a few months, the fee may cost more than it saves.

US balance transfer offers compared (2026)

The table below shows the terms displayed on each issuer's own website on September 29, 2026. We did not use comparison sites. Rates are variable and depend on your creditworthiness. Offers can change at any time and may differ by channel, so check the live terms before you apply.

Card (issuer) Intro APR on balance transfers Transfer deadline Balance transfer fee Variable APR after intro Annual fee
Citi Diamond Preferred (Citi) 0% for 21 months from account opening First 4 months 3% ($5 min) within first 4 months; 5% ($5 min) after 16.74% to 27.49% $0
Wells Fargo Reflect (Wells Fargo) 0% for 21 months from account opening Within 120 days 5% ($5 min) 17.74%, 24.24% or 28.49% $0
Chase Slate (Chase) 0% for 21 months from account opening See pricing terms 5% ($5 min) 18.24% to 28.24% $0
BankAmericard (Bank of America) 0% for 21 billing cycles Within 60 days 5% of each transaction 14.99% to 25.99% $0
U.S. Bank Shield Visa (U.S. Bank) 0% for 21 billing cycles Within 60 days 5% ($5 min) 17.24% to 28.24% $0
Citi Simplicity (Citi) 0% for 18 months from account opening First 4 months 3% ($5 min) within first 4 months; 5% ($5 min) after 17.74% to 28.49% $0
Chase Freedom Unlimited (Chase) 0% for 15 months from account opening 3% fee within 60 days 3% ($5 min) within 60 days; 5% ($5 min) after 18.24% to 27.74% $0
Discover it Cash Back (Discover) 0% for 15 months 3% fee on amounts transferred within first 15 months 3% within first 15 months; 5% on later promotional transfers Shown as 17.49% to 26.49% on the card page (another Discover page showed 18.49% to 28.49%) $0

A few notes on reading this table:

  • Longest 0% period. Five cards offered about 21 months: Citi Diamond Preferred, Wells Fargo Reflect and Chase Slate (21 months), plus BankAmericard and U.S. Bank Shield (21 billing cycles).
  • Lowest fee among the 21-month cards. Citi Diamond Preferred charged 3% on transfers made in the first 4 months. The other 21-month cards we checked charged 5%. On a $6,000 transfer, the difference is $120.
  • Rewards cards. Chase Freedom Unlimited and Discover it Cash Back earn cash back but have a shorter 15-month 0% period. If your main goal is to clear debt, the longer period usually matters more than rewards. Our guide to cash back credit cards for everyday shopping covers rewards cards in more depth.
  • Discover's rate range. Two Discover pages showed different ranges on the same day. We list both. Check the rates and fees table in the application before you apply.
  • Chase Slate deadline. Chase's page did not show a separate transfer deadline in the headline offer, and its pricing terms describe how transfers are processed after the card is mailed. Read the terms in the application for the exact qualifying window.

We could not find a published balance transfer fee on the Wells Fargo product page itself; the 5% ($5 minimum) figure comes from Wells Fargo's Important Credit Terms page for the Reflect card. Chase's product page likewise says only that a fee applies; the figures in the table come from Chase's linked pricing and terms pages.

Features that matter beyond the headline rate

  • No late fee or penalty rate. Citi Simplicity lists no late fee and no penalty rate. That does not mean paying late is harmless. Late payments can still be reported to credit bureaus and can end your promotional rate under US rules if you are more than 60 days late.
  • No penalty APR. Bank of America says paying late won't automatically raise your APR on the BankAmericard.
  • Losing the promotion. Chase's Slate terms say Chase will end the introductory APR if any required minimum payment is 60 days late and apply the penalty APR.

If you are weighing a balance transfer card against other types of card, our guide on how to choose the right credit card for you walks through the main trade-offs.

UK balance transfer offers compared (2026)

UK cards work the same way, but the way offers are shown is different. Most UK adverts say "up to" a number of months. The final offer depends on your credit history and affordability. The table shows what each lender's website displayed on September 29, 2026.

Card (lender) 0% on balance transfers Transfer window Transfer fee 0% on purchases Representative APR
Barclaycard Platinum, up to 36 months (Barclaycard) Up to 36 months from account opening Within 60 days 3.15% of each transfer 3 months 24.9% APR (variable)
HSBC UK Balance Transfer Credit Card (HSBC UK) Up to 36 months Within 60 days of account opening 3.09% (minimum £5) 3 months 25.9% APR (variable)
Barclaycard Platinum, up to 24 months BT and up to 21 months purchases (Barclaycard) Up to 24 months Within 60 days 3.45% of each transfer Up to 21 months 24.9% APR (variable)
Barclaycard Platinum, up to 22 months (Barclaycard) Up to 22 months Within 60 days 1.49% of each transfer 3 months 24.9% APR (variable)
MBNA balance transfer cards (MBNA) Shown only after an eligibility check Set number of days from opening (varies) Fees apply; not published on the page Varies Not shown on the page

Representative APRs for the Barclaycard and HSBC cards are based on an assumed £1,200 credit limit. Barclaycard also said the balance transfer period and interest rates may differ from those shown. HSBC UK said the rate and promotional period it offers will depend on its assessment of your circumstances.

Some extra points from the lenders' pages:

  • HSBC UK says people who already hold an HSBC Classic, Student, Purchase Plus or Balance Transfer credit card are not eligible for this card. It also says you won't be able to ask for a credit limit increase for the first 6 months.
  • MBNA does not list its cards publicly. Instead, it shows you the cards you are likely to be accepted for after a soft-search eligibility check. MBNA says you can transfer up to 93% of your credit limit, the minimum transfer is £100, and the name and address on both accounts must match.
  • Barclaycard was also running a limited-time app offer for some Barclays current account customers, with an application deadline of 20 October 2026. Promotions like this change often; do not choose a card for a one-off perk if the core terms are weaker.

US rules: the CARD Act and Regulation Z

In the US, the Credit Card Accountability Responsibility and Disclosure Act of 2009 (the CARD Act) added strong protections for cardholders. The detailed rules sit in Regulation Z, which the CFPB publishes. Three rules matter most for balance transfers.

1. Intro rates must last at least 6 months

Under Regulation Z section 1026.55(b)(1), an issuer can raise a promotional rate when it expires only if the promotional period lasted six months or longer and the terms were disclosed in advance. The CFPB puts it plainly: the introductory rate has to stay in effect for at least six months, unless you are more than 60 days late on a payment. The issuer must also tell you how long the rate lasts and what rate applies afterwards.

The CFPB adds one caveat. If the intro rate is variable, it can still change during the first six months if the index it is based on, such as the prime rate, changes. For 0% offers this rarely matters, but it can for low-rate (not zero) offers.

2. Being 60 days late can cost you the promotion

Section 1026.55(b)(4) lets an issuer raise your rate if it does not receive your required minimum payment within 60 days after the due date. The rule also says that if you then make six consecutive on-time minimum payments, the issuer must reduce the rate again for the affected balance. That is some protection, but by then you may have paid a lot of interest. Chase's Slate terms say directly that Chase will end your intro APR if any required minimum payment is 60 days late.

Separately, a card agreement can include other penalties for late payment, such as late fees. A late payment can trigger a late fee, and late payments can be reported to the credit bureaus. The CFPB warns that one missed or late minimum payment also could mean you lose your intro rate. Read your own agreement to see exactly what triggers a change.

3. How your payments are applied (payment allocation)

This is the rule that most affects people who have both a transferred balance and new purchases on the same card.

Section 1026.53 says that when you pay more than the minimum, the issuer must apply the extra amount to the balance with the highest APR first, then to other balances in descending order of rate. In practice, this means your payments above the minimum go toward higher-rate purchase balances before the 0% transfer balance. Wells Fargo's credit terms describe the same approach: minimum payments go to lower-APR balances first, and the excess goes first to higher-APR balances.

The minimum payment itself can be applied however the issuer chooses, within the card agreement. Many apply it to the lowest-rate balance first. That is why mixing new purchases with a transfer on the same card is risky. Your minimum payment might go to the 0% balance while a purchase balance grows at a high rate.

Deferred interest vs a true 0% intro APR

These two offers can sound alike, but they are very different.

  • True 0% intro APR. This is what the balance transfer cards in our table offer. No interest is charged on the promotional balance during the intro period. When it ends, interest starts on whatever is left, from that point on. You do not pay interest for the months that have already passed.
  • Deferred interest. These offers often use wording like "no interest if paid in full within 12 months." They are common on store cards and medical financing. The CFPB explains that if you do not pay off the full promotional balance by the deadline, or you are more than 60 days late with a minimum payment, you will be charged interest on that balance, and the interest is calculated back to the date of the original purchase.

Regulation Z has a special payment rule for deferred interest balances. During the last two billing cycles before the deferred interest period ends, any amount you pay above the minimum must go first to the deferred interest balance. This helps people pay it off in time, but it does not remove the risk. If you have a store card with a deferred interest deal, moving that balance to a true 0% balance transfer card before the deadline can be a sensible move, if the issuer accepts store card transfers.

The grace period on purchases

Most cards give you an interest-free grace period on purchases if you pay the whole statement balance by the due date. Wells Fargo says its due date is at least 25 days after the close of each billing period. But as explained above, the grace period usually applies only if you pay the entire balance, including the transfer. The CFPB says that if you carry a balance month to month, purchases accrue interest from the date of the transaction.

What US law does not require

  • Federal law does not cap the balance transfer fee.
  • It does not require issuers to approve you for the full amount you want to transfer.
  • It does not require issuers to offer 0%; the 6-month minimum only applies when they do offer a promotional rate.

UK rules: persistent debt, Section 75 and credit checks

In the UK, credit cards are regulated by the Financial Conduct Authority (FCA). Several UK rules and practices are worth knowing before you move a balance.

Persistent debt rules

The FCA's persistent debt rules came into force on 1 March 2018, and firms had until 1 September 2018 to comply. They target people who, over 18 months, pay more in interest, fees and charges than they repay of the money they borrowed.

After 18 months in persistent debt, the card provider must contact you, prompt you to increase your repayments and warn that your card may be suspended if nothing changes. After 36 months, the provider must offer you a way to repay the balance in a reasonable period. If you cannot afford that, the FCA says the firm must show forbearance, which may include reducing, waiving or cancelling interest, fees or charges.

Why does this matter for a balance transfer? A 0% transfer can help you escape persistent debt, because every payment goes toward the balance. But moving debt from card to card again and again without paying it down is not a long-term fix. If you have received a persistent debt letter, it is worth reading it carefully and speaking to your provider or a free debt advice service before applying for new credit.

Section 75 does not follow a transferred balance

Section 75 of the Consumer Credit Act 1974 can make a credit card provider jointly liable with a retailer if something you bought goes wrong. The Financial Ombudsman Service says it applies when the cash price of the item is more than £100 but not more than £30,000, and there needs to be a clear agreement linking you, the supplier and your lender.

A balance transfer does not create that link. Your new card company did not finance the original purchase; it only paid off the debt on your old card. So you should not expect to bring a Section 75 claim against the new card provider for something you bought on the old card. The Ombudsman's guidance also lists methods that do not give Section 75 cover, such as credit card cheques, bank transfers and cash. If you have an open dispute about a purchase, sort it out with the original card provider before, or alongside, moving the balance, and keep your old card statements. The Financial Ombudsman does not specifically address balance transfers in the guidance we reviewed, so treat this as general guidance and ask the provider if you are unsure. For more on protections, see our guide to disputing a credit card charge in the US and UK.

Credit checks and eligibility checkers

UK lenders run a full credit check when you apply. MBNA says that its eligibility checker uses only a soft search, which won't affect your credit score and can't be seen by other lenders. If you go ahead and apply, it does a full credit check, which will be noted on your credit file and may affect your score.

Using an eligibility checker first is a sensible habit. It lets you see which cards you are likely to get, and sometimes an estimated credit limit, before a hard search goes on your file. It does not guarantee approval or the headline 0% period.

Affordability and "up to" offers

UK lenders must check that credit is affordable. HSBC UK says credit is subject to status, affordability and terms and conditions. Both HSBC UK and Barclaycard say the promotional period you get may differ from the headline. Read the offer you actually receive, not the advert.

Keep up your minimum payments

MBNA says you could lose promotional rates if you don't make at least the minimum payment on time each month. When a promotional rate is withdrawn or expires, the standard account interest rates, fees and charges apply. This is common across UK lenders. Set up a direct debit for at least the minimum as soon as the card arrives.

Brief notes for Canada and Australia

Canada

The Financial Consumer Agency of Canada (FCAC) says balance transfers to a new card generally come with a lower or 0% introductory rate that usually applies for 6 to 18 months. It says you usually pay a fee to transfer a balance, often a percentage of the amount, and that you may lose your promotional rate if you miss a payment. FCAC lists balance transfers as one form of debt consolidation, alongside consolidation loans and lines of credit. Canadian offers tend to be shorter than the longest US and UK deals, so do the fee-versus-interest math carefully.

Australia

ASIC's Moneysmart website (updated 9 September 2026) says promotional periods are usually between 6 and 24 months. It notes that some cards cap how much you can move, giving an example of 80% of the available credit, and that you will be charged a one-off transfer fee as a percentage of the amount. Moneysmart warns that if you miss a required repayment during the promotional period you may lose the low rate, and that the new rate may be higher than your original card. It also warns that the leftover balance may be charged the standard rate or, on some cards, the cash advance rate. Moneysmart suggests cancelling the old card after the transfer to avoid building up new debt.

How a balance transfer affects your credit score

A balance transfer can lower your score a little at first and help it over time. Here is why.

Short-term effects

  • Hard inquiry. Applying for a new card usually triggers a hard inquiry. The CFPB says hard inquiries affect your credit score because most scoring models look at how recently and how often you apply for credit. Soft inquiries, like checking your own report or prequalification checks, do not affect your score.
  • New account. A new account lowers the average age of your accounts, which can have a small negative effect.
  • High use of the new card. If you transfer a balance that uses most of the new card's limit, that card will look "maxed out", even though your total debt has not changed.

Longer-term effects

  • More total credit. A new credit line raises your total available credit. If your total debt stays the same or goes down, your overall credit utilization falls. Lower utilization generally helps scores.
  • Faster payoff. Because more of each payment goes to the balance, your debt should fall faster. Lower balances generally help scores.
  • On-time payments. Payment history is one of the most important parts of a score. Automatic payments protect you.

Should you close the old card?

Closing the old card removes its credit limit, which can raise your utilization ratio. Keeping it open with a zero balance usually helps your score, as long as you do not run it up again. Australia's Moneysmart suggests cancelling the old card to avoid temptation. The right choice depends on your habits. If you know you will spend on it again, closing it may be worth a small score dip. If it has an annual fee, closing it may also save money.

If you want to understand what goes into your score, read our explainer on what a credit score is and how it is calculated. If you are planning to apply soon, our guide on improving your credit score before you apply may also help.

How to do a balance transfer, step by step

  1. List your debts. Write down every card balance, its APR and its minimum payment. This tells you how much you want to move and how much interest you are paying now.
  2. Set a realistic monthly budget. Decide how much you can pay each month. Divide the total you want to move (plus the fee) by the number of 0% months. If you cannot afford that payment, you will still owe money when the promotion ends. Plan for it.
  3. Check your credit. Review your credit reports and dispute any errors before applying.
  4. Use prequalification or eligibility tools. Many US issuers, such as U.S. Bank, offer "see if you're pre-approved" tools that do not affect your credit. In the UK, lenders such as MBNA offer soft-search eligibility checkers.
  5. Compare the full terms. Look at the 0% length, the fee, the transfer deadline, the go-to APR, late fees and penalty APR. Use the issuer's own rates and fees table, not an advert.
  6. Make sure the cards are from different banks. You generally cannot transfer between cards from the same bank or group.
  7. Apply for one card. Avoid applying for several cards at once. Each application can add a hard inquiry.
  8. Request the transfer quickly. Do it within the offer window. Transfer the highest-rate debt first if your limit will not cover everything.
  9. Keep paying the old card until the transfer lands. Check that the old balance has gone down by the right amount. Pay any small leftover balance or interest that posted before the transfer.
  10. Set up automatic payments. At a minimum, set autopay for the minimum payment. Better still, set it for your planned payoff amount.
  11. Do not use the new card for purchases. This protects your grace period and keeps your payments working on the transferred debt.
  12. Note the end date. Put the last month of the 0% period in your calendar. Review your progress every few months.
  13. Plan for any leftover balance. If you will not clear it in time, decide early whether you will pay more, look at a personal loan, or accept some interest. A second transfer is possible but adds another fee and another credit check.

Worked example with the math shown

The examples below are hypothetical. They use simple monthly interest (APR divided by 12) and ignore small timing differences, so real statements will differ a little. They show how the numbers work, not what you will be offered.

US example: $6,000 at 22.15% APR

Maria has $6,000 on a card with a 22.15% APR. That is the Federal Reserve's average rate on accounts assessed interest for the second quarter of 2026. She can afford $300 a month.

Option A: stay on her current card.

  • Monthly interest rate: 22.15% divided by 12 = about 1.846%.
  • First month's interest: $6,000 times 1.846% = about $110.75. So only about $189 of her first $300 payment reduces the debt.
  • Paying $300 a month, it takes 26 months to clear the debt.
  • Total interest paid: about $1,557.

Option B: transfer to a 21-month 0% card with a 5% fee.

  • Fee: $6,000 times 5% = $300.
  • New balance: $6,000 + $300 = $6,300.
  • Payment needed to clear it in 21 months: $6,300 divided by 21 = $300 a month.
  • Total interest: $0. Total cost of borrowing: the $300 fee.
  • Saving compared with Option A: about $1,557 minus $300 = about $1,257. She is also debt-free 5 months sooner.

Option C: same card terms, but with a 3% fee.

  • Fee: $6,000 times 3% = $180.
  • New balance: $6,180. Payment needed over 21 months: $6,180 divided by 21 = about $294.29 a month.
  • Saving compared with Option A: about $1,557 minus $180 = about $1,377.

What if Maria only pays $200 a month?

  • After 21 months on the 5% card, she has paid $200 times 21 = $4,200.
  • Balance left: $6,300 minus $4,200 = $2,100.
  • If the go-to APR is 24.24% (one of Wells Fargo Reflect's three possible rates), the monthly rate is about 2.02%.
  • Paying $200 a month, the $2,100 takes about 12 more months to clear, with about $284 in interest.
  • Total cost: $300 fee + $284 interest = $584. That is still much less than Option A, but the debt takes about 33 months in total to clear.

The lesson: a transfer can help even if you do not finish on time, but the savings shrink the longer a balance sits at the go-to rate. The bigger risk is if Maria also adds new purchases or misses a payment and loses the promotion.

UK example: £4,000 at 24.9% APR

James owes £4,000 on a card charging 24.9% and pays £120 a month. For simplicity, we treat 24.9% as the yearly rate and divide by 12.

  • Staying put: it takes about 58 months to clear the debt, with about £2,875 in interest.
  • Transfer to a card with up to 36 months at 0% and a 3.15% fee: the fee is £4,000 times 3.15% = £126. The new balance is £4,126. Paying it off in 36 months needs £4,126 divided by 36 = about £114.61 a month, which is slightly less than he pays now.
  • Result: total cost £126 instead of about £2,875, and debt-free in 3 years instead of almost 5.

But James is only guaranteed this if he is accepted for the full 36 months. If the lender offers him a shorter period, say 24 months, he would need about £172 a month (£4,126 divided by 24) to clear it in time. That is why it is worth reading the actual offer before making the transfer.

A simple formula you can use

Monthly payment needed = (balance transferred + fee) divided by the number of 0% months.

If you cannot afford that figure, estimate the leftover balance: (balance + fee) minus (your monthly payment times the number of 0% months). That leftover will start costing interest at the go-to rate.

Mistakes to avoid

  1. Only paying the minimum. The minimum payment is designed to keep the account in good standing, not to clear the debt within the 0% window. Pay your planned amount every month.
  2. Missing a payment. A late payment can bring a late fee, damage your credit record and, in some cases, end your promotional rate. Set up autopay.
  3. Using the card for new purchases. You may lose the grace period, and new purchases may be charged a higher rate straight away. In the US, your minimum payment may go to the 0% balance while purchases build up interest.
  4. Missing the transfer window. Transfers made after the deadline may get the standard rate and a higher fee.
  5. Ignoring the fee. On a small balance you can pay off in a few months, the fee may be more than the interest you save.
  6. Transferring within the same bank. This usually is not allowed. Your request may be rejected, and you will have used a hard inquiry for nothing.
  7. Assuming you will get the full limit. You may only be able to move part of your debt. Have a plan for what is left on the old card.
  8. Running up the old card again. This is the most common way a transfer backfires. You end up with two debts instead of one. Our article on why credit cards can become a financial trap explains how this cycle starts.
  9. Confusing 0% intro APR with deferred interest. Store card deals that say "no interest if paid in full" can charge back interest from the purchase date if you miss the deadline.
  10. Applying for several cards at once. Multiple hard inquiries in a short time can lower your score and may make lenders cautious.
  11. Chasing endless transfers. Moving debt again and again adds fees and credit checks. It can hide a spending problem instead of solving it.
  12. Falling for "debt relief" scams. Be wary of anyone who charges upfront fees to "negotiate" your card debt or promises guaranteed approval. See our guide on how to avoid loan scams and fake offers.

Balance transfer vs personal loan vs debt consolidation

A balance transfer is one way to consolidate debt. It is not the only one. The main alternatives are a personal loan (sometimes called a debt consolidation loan) and working with a non-profit credit counseling agency on a debt management plan.

Feature 0% balance transfer card Personal loan Debt management plan
Interest 0% for a set time, then the card's standard variable rate Usually a fixed rate for the whole term Creditors may agree to lower rates or fees; not guaranteed
Upfront cost Transfer fee, often 3% to 5% in the US and around 1.5% to 3.5% in the UK on the cards we checked Some lenders charge an origination fee; many do not Some agencies charge a set-up or monthly fee; in the UK, free options exist
Payment schedule Flexible; you choose how much above the minimum to pay Fixed monthly payment and a fixed end date One monthly payment to the agency, which pays creditors
Credit needed Usually good to excellent credit for the best offers Rate depends heavily on credit No new credit needed
Main risk Leftover balance at a high rate; new spending on the card Running card balances up again after they are paid off Card accounts are often closed; may be noted on your credit file
Best for People who can clear most of the debt within 15 to 21 months (US) or up to about 36 months (UK) People who need longer, want a fixed payment, or have too much debt for one card's limit People struggling to make minimum payments

How a personal loan compares on cost

According to the Federal Reserve's G.19 release, the average rate on 24-month personal loans at commercial banks was 11.86% in the second quarter of 2026. That average is about half the average card rate on accounts assessed interest (22.15%), but it is not 0%.

Using Maria's $6,000 from the worked example: a 24-month loan at 11.86% would cost about $282 a month and about $769 in total interest, before any origination fee. The 0% card with a 5% fee costs $300 in fees if she clears it in 21 months. The card wins on cost if she sticks to the plan. The loan wins on certainty: a fixed payment, a fixed end date and no risk of a jump to a high variable rate. If you choose a loan, compare the APR including any fees, and check that there is no penalty for paying it off early.

When debt management or advice makes more sense

If you are already missing payments, or the monthly amount needed to clear your debt is well beyond your budget, a new credit card is unlikely to fix the problem. In the US, non-profit credit counseling agencies can help set up a debt management plan. In the UK, free, regulated debt advice is available, and your card provider must help you under the FCA's persistent debt rules if you are in long-term difficulty. In Canada, FCAC lists debt consolidation loans, lines of credit and balance transfers as options, and in Australia Moneysmart says a balance transfer might not be right for you if you are struggling with repayments.

When a balance transfer does not make sense

  • Your balance is small and you can clear it soon. If you can pay off $800 in three months, the interest on your current card may be less than a 3% or 5% fee plus the credit check.
  • You cannot pay much more than the minimum. If most of the debt will still be there when the promotion ends, you will have paid a fee and then face the same high rate.
  • Your credit score is low. The best offers usually go to people with good credit. You may be declined or offered a small limit that does not cover much of your debt. Use prequalification or eligibility tools first.
  • You are about to apply for a mortgage or car loan. A new hard inquiry and a new account could affect the rate you are offered on a bigger loan. It may be wiser to wait.
  • You tend to spend on available credit. A transfer frees up space on your old card. If you are likely to use it, you could end up with more debt.
  • Your debt is not on credit cards. Most balance transfer offers are for card debt. Some issuers allow other transfers, but the terms can differ. Check before applying.
  • You already have a 0% or low rate. If your current card is on a promotional rate already, moving it just adds a fee.
  • You have repeatedly transferred the same debt. If you have done this several times, the problem may be spending or income, not the interest rate. Moneysmart notes that if you have transferred before, it may be better to focus on paying off the card.

Frequently asked questions

How does a balance transfer work?

You open a card with a balance transfer offer and ask the new issuer to pay off some or all of your balance on another card. That amount, plus a transfer fee, moves to your new card and is charged the promotional rate, often 0%, for a set number of months. You then repay the new card. When the promotion ends, any balance left is charged the card's standard rate.

What is a typical balance transfer fee?

On the US cards we checked on September 29, 2026, the fee was 3% or 5% of each transfer, with a $5 minimum. On the UK Barclaycard and HSBC cards we checked, it ranged from 1.49% to 3.45%. The CFPB confirms issuers are allowed to charge a fee even on a 0% offer.

Is a 0% balance transfer really interest-free?

Yes, on the promotional balance during the intro period, as long as you keep to the terms. But you usually pay a one-off fee, and new purchases may be charged interest. If you pay late, you may lose the rate. After the intro period ends, the remaining balance is charged the standard APR.

How long do 0% balance transfer offers last?

In the US, federal rules require a promotional rate to last at least six months. The longest US offers we found were 21 months (or 21 billing cycles). In the UK, some cards advertised up to 36 months. FCAC says Canadian offers usually last 6 to 18 months, and Moneysmart says Australian offers usually last 6 to 24 months.

Will a balance transfer hurt my credit score?

It may lower your score slightly at first, because of the hard inquiry and the new account. Over time it can help if your total credit limit goes up, your debt goes down and you pay on time. Missing payments or running up more debt would hurt your score.

Can I transfer a balance between two cards from the same bank?

Usually not. Bank of America says its balance transfers can't be used to pay Bank of America accounts, and HSBC UK says you cannot transfer from cards issued by HSBC Group members, including first direct and M&S Bank. Choose a card from a different bank.

What happens if I don't pay off the balance before the 0% period ends?

The remaining balance starts being charged the card's standard balance transfer APR from that point. With a true 0% intro APR, you are not charged interest for the months that have passed. That is different from deferred interest offers, which can charge interest back to the purchase date.

Can I make purchases on a balance transfer card?

You can, but it is usually best not to. Carrying a transferred balance can remove your grace period, so new purchases may be charged interest from the day you buy. In the US, payments above the minimum go to the highest-rate balance first, but the minimum itself may go to the 0% balance.

Does Section 75 protection transfer with my balance in the UK?

You should not rely on it. Section 75 links you, the retailer and the lender that financed the purchase. Your new card provider did not finance the original purchase, so it is generally not liable for it. Keep records and raise any purchase problem with the original card provider.

How many balance transfers can I do?

There is no legal limit, but each new card means a credit check and a new fee, and the total you can move is limited by your credit limit. Repeated transfers without paying the debt down can be a sign that another approach, such as a fixed-term loan or debt advice, would work better.

Bottom line

A balance transfer credit card can be one of the cheapest ways to pay off credit card debt. On the cards we checked, you could get up to 21 months at 0% in the US and up to 36 months in the UK, in return for a one-off fee of roughly 1.5% to 5%. For many people with a few thousand dollars or pounds of card debt at over 20% interest, that trade is clearly worth it.

But it only works with a plan. Work out the monthly payment you need, move the balance within the deadline, pay on time every month, and keep new spending off the card. Check the fee, the go-to APR and the transfer window on the issuer's own terms. If you cannot afford to clear most of the debt during the promotion, compare a fixed-rate personal loan or seek free debt advice instead.

This article is general information and not personal financial advice. Card terms change often; always read the issuer's current terms before applying.

Sources

All sources below were accessed on September 29, 2026.

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