If one of your credit cards carries a 0 percent promo balance and a pile of ordinary purchases, only part of your payment is legally protected. The part above the minimum.
Everything up to the minimum goes wherever your issuer decides to put it. Your issuer decides in its own favor.
That isn’t a loophole somebody found. It’s how the rule is written.
Regulation Z, section 1026.53, says that when you pay more than the required minimum, the card issuer “must allocate the excess amount first to the balance with the highest annual percentage rate” and then work down the other balances in rate order. It’s a good rule. It ended the era when banks aimed every dollar at your cheapest balance and let the expensive one sit and compound.
Now read what it doesn’t say. It never touches the required minimum. The rule governs amounts in excess of the minimum and nothing else, which leaves the bank in full control of the first chunk of every payment you send.
Here’s the shape of it on a real card.
Say you moved $6,000 onto a 0 percent transfer offer, then charged $900 of ordinary spending to the same account. That $900 sits at something like 22.15 percent, the rate the Federal Reserve’s G.19 release, published September 8, puts on card accounts actually assessed interest as of the second quarter. Pay only the minimum and the issuer can route every dollar of it to the 0 percent chunk, because nothing stops it. The $900 earns the bank about $17 a month. Call it $200 a year, collected from someone who paid on time every month.
Pay a few hundred more and the picture flips. Every dollar above the minimum has to hit the 22.15 percent balance first. An extra $180 a month clears that $900 in about five months.
Same card, same debt. The difference is whether you gave the law anything to work with.
Then there’s the part that catches people on store financing. If your promo is deferred interest, the “no interest if paid in full” kind, the official commentary treats that balance as an annual percentage rate of zero while the promo runs. Zero puts it dead last in the queue. So your extra dollars go to your newer, higher-rate purchases first, and only what’s left over reaches the one balance that detonates if it isn’t cleared in time. The rule flips the order in the two billing cycles immediately preceding expiration.
Two cycles is not much runway on a twelve-month plan.
Do this tonight. Open each card and find out whether you’re carrying more than one balance at more than one rate. Most issuers show it, buried, on the statement page. If you find two, stop paying the minimum on that card, because anything above it is the only money the law will aim for you.
If one of those balances is a deferred interest promo, ask the issuer to send your extra payment there. Section 1026.53(b)(2) says they may do that “at its option” when you request it. They’re also free to say no. Ask through your account message center so the answer is in writing.
And stop charging to a card you’re trying to pay off. Every new purchase at the regular rate cuts the line ahead of the balance you’re actually worried about.
Our debt payoff calculator will show you what a bigger payment does to your timeline, and the credit cards hub covers the rest of the fine print.
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