Does the Debit Swipe Fee Cap Still Apply After the Corner Post Ruling?
By Yan Payments
Does the debit swipe fee cap still apply right now?
Yes. A federal appeals court ruled against the cap on October 26, 2026, but nothing has changed yet for what you’re actually charged on debit transactions. The 21-cent plus 0.05% cap that’s been in place since 2011 is still the rule merchants operate under today.
What did the court actually rule?
On October 26, 2026, the Eighth Circuit Court of Appeals, in Corner Post, Inc. v. Board of Governors of the Federal Reserve System, unanimously affirmed a district court decision against the Federal Reserve’s debit interchange cap under Regulation II. Corner Post, a North Dakota truck stop, had argued the Fed set its 21-cent-plus-0.05%-of-transaction-value cap by including costs that shouldn’t count. The court agreed, holding that the Durbin Amendment requires the Fed to base the cap on the marginal, transaction-specific costs of authorizing, clearing, and settling a debit payment, not the broader fixed costs the Fed had folded into its 2011 calculation.
This is the same case that made news back in August 2025, when a North Dakota district court first vacated the cap. The Eighth Circuit’s ruling is that case moving one level up, on appeal, not a new or separate lawsuit.
Why hasn’t the cap gone away already?
Because the district court stayed its own order pending the Fed’s appeal, and that stay effectively stays in force until the Eighth Circuit’s mandate formally issues, which typically happens some weeks after a ruling, longer if either side asks for further review. The Fed has a few paths available: ask the full Eighth Circuit to rehear the case en banc, petition the Supreme Court, or go back and redo the interchange rule using a cost methodology that holds up under this ruling. Any of those options can stretch the actual change-over date out for months.
So for a merchant checking their statement in November 2026, the practical answer is simple: the existing cap of 21 cents plus 0.05% of the transaction, plus a 1-cent fraud-prevention adjustment on top for issuers that qualify, is still what applies. Nothing on your debit interchange line changes until the Fed either loses its remaining appeals or issues a new rule.
What happens if the ruling eventually sticks?
If the cap is actually vacated once appeals run out, debit interchange on cards from banks with over $10 billion in assets, the banks Reg II’s cap covers, would no longer be bound by that ceiling until the Fed issues a replacement rule based on marginal costs. In theory, issuing banks could charge more per debit transaction in the gap between vacatur and a new rule, since the price ceiling itself would be gone. Nobody, including the Fed, has said what interchange would look like in that scenario, and it’s reasonable to expect the Fed would move to issue a new rule quickly rather than leave debit interchange unregulated for the biggest banks. Treat any specific number you see floated for a “new” cap as speculation until the Fed actually publishes one.
Could this create a split in the courts?
Possibly. A separate case, Linney’s Pizza, LLC v. Board of Governors of the Federal Reserve System, is working through the Sixth Circuit after a Kentucky district court ruled the opposite way, finding Regulation II’s cap lawful and reasonable. Briefing in that appeal wrapped up in July 2026, and a decision is still pending. If the Sixth Circuit comes out the other way and upholds the cap as it stands, that circuit split would make Supreme Court review far more likely, which would push any real resolution out even further.
What should you actually do about this today?
Nothing urgent, but it’s worth keeping on your radar:
- Don’t change anything on your debit acceptance or routing setup based on this ruling. The cap you’re charged under hasn’t moved.
- Ask your processor to flag you if the Eighth Circuit’s mandate issues or the Fed announces a new interim rule, since that’s the point costs could actually shift.
- If your business runs heavy debit volume, in restaurants and retail this is often half or more of card volume, keep an eye on your statement in the months after any mandate issues rather than assuming your rate is locked in.
This is a fast-moving legal story and the practical upshot for merchants could change with the next filing. Talk to someone who can walk through your actual statement if you want a second set of eyes once something changes, rather than guessing from headlines.
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