WASHINGTON–A coalition of financial trade organizations that includes America’s Credit Unions has filed an amicus brief urging the U.S. Court of Appeals for the Eighth Circuit to reverse a lower-court decision in Corner Post v. Federal Reserve that would sharply reduce debit interchange fee caps.
As the CU Daily reported here earlier, the case challenges the Federal Reserve’s debit interchange rule. In 2025, the U.S. District Court for the District of North Dakota ruled in favor of retailers, a decision the brief argues misinterprets the Durbin Amendment and would force the Federal Reserve to impose interchange caps far below the actual costs incurred by debit card issuers.
Corner Post is the name of the small store that is the plaintiff in the case.
Security Will be ‘Undermined’
America’s Credit Unions said the brief warns the ruling would “undermine the security, efficiency, and reliability of the U.S. debit payments system and threaten consumer access to safe, widely accepted payment options provided by credit unions and other issuers.”
The brief emphasizes that Congress directed interchange fees to be “reasonable and proportional” to issuer costs, a standard the Fed followed in its 2011 rulemaking.
America’s Credit Unions said it continues to oppose unnecessary interchange regulation and will provide updates on the litigation as available.
