The best balance transfer credit cards right now offer 0% intro APR for 21 months or 21 billing cycles, giving you nearly two years to pay down debt without accruing interest. Several major issuers compete at that top tier, so your best pick depends on which bank your current debt is with, your credit score, and how much you’ll pay in transfer fees.
Cards With the Longest 0% Periods
Five cards currently stand out with 21-month (or 21 billing cycle) introductory periods on balance transfers:
- Wells Fargo Reflect® Card: 0% intro APR for 21 months from account opening on qualifying balance transfers.
- Chase Slate®: 0% intro APR on balance transfers for 21 months.
- Citi® Diamond Preferred® Card: 0% for 21 months on balance transfers.
- BankAmericard® credit card: 0% intro APR for 21 billing cycles on balance transfers made in the first 60 days.
- U.S. Bank Shield™ Visa® Card: 0% intro APR on balance transfers for 21 billing cycles.
All five cards are designed primarily as debt payoff tools rather than rewards earners. If you’re carrying $5,000 in credit card debt at a typical 22% APR, moving that balance to a 21-month 0% card saves you roughly $1,100 or more in interest, assuming you pay it off before the intro period ends.
If you don’t need the full 21 months, the Bank of America® Customized Cash Rewards card offers 15 billing cycles at 0% on balance transfers made in the first 60 days, with the added benefit of cash back on everyday purchases. The Chase Freedom Flex® also provides a 0% intro period of more than a year, paired with a rotating-category rewards program. These can be smart picks if you expect to pay off your balance faster and want a card that remains useful afterward.
What Balance Transfer Fees Cost
Nearly every balance transfer card charges a fee, typically 3% to 5% of the amount you move. On a $5,000 transfer, that’s $150 to $250 added to your balance upfront. The fee is almost always worth it when you’re escaping a high interest rate, but it’s important to factor it into your math. If you’re transferring a small balance that you could pay off in a month or two anyway, the fee might eat up most of your savings.
A handful of cards occasionally waive the transfer fee entirely or reduce it for transfers completed within the first few months. These no-fee offers tend to come with shorter 0% periods, so you’re trading time for a lower upfront cost. When comparing cards, calculate total cost: the transfer fee plus any interest you’d pay if you don’t finish paying off the balance before the intro period expires. The card with the lowest combined cost wins, even if it doesn’t have the longest 0% window.
Credit Score Requirements
Most balance transfer cards require at least good credit, which means a FICO score of 690 or higher. The 21-month cards listed above are premium offers, so approval typically goes to applicants in that range or above. Scores below 630, which fall into most definitions of bad credit, generally won’t qualify for these top-tier cards.
If your score is in the mid-600s, you may still find balance transfer offers, but they’ll come with shorter 0% windows and potentially higher fees. One practical step before applying: check your credit report for errors or outdated negative items that might be dragging your score down. Correcting even one mistake can bump your score enough to cross the threshold. Beyond your score, issuers also look at your income and existing debt load when deciding how large a credit limit to grant, which determines how much of your balance you can actually transfer.
The Same-Bank Rule
You cannot transfer a balance between cards from the same bank. If your high-interest debt is on a Chase card, you need to apply for a balance transfer card from a different issuer like Citi, Wells Fargo, or U.S. Bank. This rule also extends to banks that have merged: since Capital One acquired Discover, you can’t transfer balances between Capital One and Discover cards either.
This restriction matters when you’re choosing which card to apply for. Before picking the longest 0% offer on the list, check which bank issued the card you’re trying to pay off. That bank’s balance transfer cards are automatically off the table.
How Long Transfers Take to Process
A balance transfer typically takes five to seven days after you submit the request, but some issuers can take up to 21 days. During that processing window, you’re still responsible for making minimum payments on your old card. Missing a payment while waiting for a transfer to go through can trigger a late fee and damage your credit.
Processing times vary by issuer. Bank of America and Wells Fargo generally complete transfers within about two weeks. Chase takes 7 to 21 days. Citi ranges from 2 to 21 days. Capital One takes 3 to 15 business days, with a 10-day waiting period for new accounts. American Express is the slowest, taking up to six weeks because it won’t process transfers until at least 10 days after new cardholders receive their card member agreement. If your transfer hasn’t gone through within 21 days, contact the issuer’s customer service line to check on the status.
Making the Most of a Balance Transfer
The 0% intro period starts the day your account opens, not the day your transfer goes through. Every day spent waiting for processing is a day of your interest-free window you can’t use. Submit your transfer request as soon as your new card arrives, and if the card requires transfers within a specific timeframe (the BankAmericard, for instance, requires transfers within the first 60 days), set a reminder so you don’t miss the cutoff.
Divide your total transferred balance by the number of months in your intro period. That’s your target monthly payment. On a $6,000 balance with a 21-month window, that works out to about $286 per month. Paying that amount consistently means you’ll hit zero right as the promotional rate expires. If you only make minimum payments, you’ll likely still owe a significant chunk when the regular APR kicks in, which typically jumps to somewhere between 18% and 28% depending on your creditworthiness.
One more thing to keep in mind: putting new purchases on a balance transfer card can complicate your payoff plan. Some cards offer 0% on purchases too, but others charge interest on new spending immediately. Even when purchases also get the 0% rate, adding to the balance works against your goal of paying it down. The cleanest strategy is to use your balance transfer card only for the transferred debt and keep a separate card for daily spending.