You cannot pay one credit card directly with another credit card. No major issuer accepts a card number at the bill-pay screen, because processing consumer debt as a card purchase would force the receiving bank to take on your balance while also paying interchange to process the transaction. Paying a credit card with another credit card is still possible in effect, but only through indirect routes: a balance transfer, a cash advance, a convenience check, or a third-party payment service. Each one charges a fee, typically 3% to 5% of the amount you move, and one of them can cost far more if you pick wrong.
Balance Transfers Are the Usable Route
A balance transfer is the closest thing to paying one card with another. You apply for a card that offers balance transfers (or use one you already have), tell the new issuer the account number and amount to move, and the new bank pays the old one on your behalf. Processing runs anywhere from two to 21 days depending on the banks involved.
The fee generally runs 3% to 5% of the transferred amount, disclosed upfront under federal lending rules.1Consumer Financial Protection Bureau. 12 CFR 1026.60 – Credit and Charge Card Applications and Solicitations Move $5,000 and you’ll add $150 to $250 to the new card’s balance. What makes the fee worthwhile is the promotional 0% APR many balance transfer cards offer for an introductory window. A $5,000 balance at 22% APR costs roughly $1,100 in interest over a year; a 3% transfer fee costs $150. If you can pay the balance down during the promo, the trade is easily worth it.
A few details catch people out:
- Your transfer can’t exceed the new card’s available credit minus the fee. Ask for $6,000 on a $6,000 limit and the issuer will reject or shrink the request.
- Most banks won’t let you transfer a balance between two of their own cards. If both cards are from the same issuer, this route is usually closed.2Consumer Financial Protection Bureau. Credit Cards Key Terms
- Keep paying at least the minimum on the old card until the transfer posts. A three-week processing time doesn’t pause your billing cycle, and a missed payment during that window brings late fees and possible credit damage.
Watch for Deferred Interest
Promotional 0% offers come in two versions, and the difference matters. The safer version waives interest during the promo window; once it ends, the regular rate applies only to whatever balance is left, going forward.
The dangerous version is deferred interest. If you don’t clear the full balance before the promo ends, you owe every dollar of interest that would have accrued since day one, retroactively.3Consumer Financial Protection Bureau. I Got a Credit Card Promising No Interest for a Purchase if I Pay in Full Within 12 Months – How Does This Work A $5,000 balance at 22% over 15 months would trigger a retroactive interest charge north of $1,300. The same retroactive charge kicks in if you fall more than 60 days behind on a minimum payment during the promo period.
Falling 60 days late can also trigger a penalty APR on your entire balance, often in the high 20s or low 30s.2Consumer Financial Protection Bureau. Credit Cards Key Terms
Cash Advances
A cash advance lets you pull money against your credit line at an ATM or bank branch, deposit it, and use the cash to pay another card’s bill. If you’ve never set a PIN for your credit card, you’ll need to request one from your issuer; it usually arrives by mail after several days.
This is the most expensive option, and it’s not close. Interest starts accruing the moment you get the cash, with no grace period.4Consumer Financial Protection Bureau. What Is a Grace Period for a Credit Card The advance APR generally runs several points above your purchase rate, and there’s an upfront cash advance fee on top. Your cash advance limit is usually only 20% to 30% of your full credit limit, so it may not even cover the bill you’re trying to pay. A $3,000 advance can easily cost $100 or more in the first month between the fee and the immediate interest.
Convenience Checks
Some issuers mail checks you can write against your credit line. Writing one to yourself, depositing it, and using the funds to pay another card is technically possible, but issuers treat convenience checks as cash advances rather than purchases.5FDIC. Credit Card Checks and Cash Advances That means the higher rate, no grace period, and a transaction fee often around 5%.
The exception is when the check carries a promotional rate printed on the mailer. A 0% promo check can function like a low-cost balance transfer. A standard-rate check is worse than an actual balance transfer in every way, so use the transfer instead.
Third-Party Services
Platforms like Plastiq sit between your credit card and the receiving bank. You pay the platform with your card; the platform sends the money to the other issuer by ACH or check. Because the platform is a merchant, the transaction runs as a purchase, so your normal purchase APR applies and your grace period stays intact.
Plastiq’s base fee is 2.99% per transaction.6Plastiq. The Plastiq Fee That’s similar to a balance transfer fee, but without the 0% promo that makes transfers worth paying for. Delivery adds three to five business days. This method makes sense if you can’t qualify for a balance transfer card or need to hit a payment deadline, not as a general strategy.
What This Does to Your Credit Score
Applying for a new balance transfer card creates a hard inquiry, usually costing fewer than five FICO points and fading within a year. A thin credit file may feel it more.
Utilization matters more. A balance transfer doesn’t reduce your total debt, but adding a new card raises your total available credit, which lowers your overall utilization ratio. That generally helps. The catch: if you fill most of the new card’s limit with the transferred balance plus the fee, that single card’s utilization runs high, and scoring models penalize a maxed individual card even when your overall ratio looks reasonable.
Cash advances and convenience checks don’t add a new account or new credit, so no hard inquiry, but they raise the balance on an existing card without adding headroom. Utilization goes up. If you’re already close to your limits, this pushes your score the wrong direction.
Which Option Fits Which Situation
If you carry a high-interest balance and can qualify for a card with a 0% promotional rate, a balance transfer is the clear choice. The fee is small compared to the interest you’d otherwise pay, provided you can clear the balance before the promo ends.
Third-party services are the fallback when you can’t get a balance transfer card or you need the payment to land quickly. You’ll pay a fee comparable to a transfer without getting the 0% rate that justifies it.
Cash advances and convenience checks are last-resort tools. Between the higher rate, immediate interest, and upfront fee, they’re the most expensive path by a wide margin.
None of these methods erases the underlying debt. You’ve moved it. If the balance just sits on the new card collecting interest after the promotional period ends, you’ve paid a fee to land in the same place you started.