Per Curiam.

 The Federal Deposit Insurance Corporation (FDIC) brought an enforcement action against petitioner, the former CEO of a Michigan-based community bank, for mismanaging one of the bank’s loan relationships in the wake of the “Great Recession” of 2007–2009. After proceedings before the agency concluded, the FDIC ordered petitioner removed from office, prohibited him from further banking activities, and assessed $125,000 in civil penalties. Petitioner subsequently filed a petition for review in the Court of Appeals for the Sixth Circuit. That court determined that the FDIC had made two legal errors in adjudicating petitioner’s case. But instead of remanding the matter back to the agency, the Sixth Circuit conducted its own review of the record and concluded that substantial evidence supported the agency’s decision.

 That was error. It is “a simple but fundamental rule of administrative law” that reviewing courts “must judge the propriety of [agency] action solely by the grounds invoked by the agency.” SEC v. Chenery Corp., 332 U. S. 194, 196 (1947). “[A]n agency’s discretionary order [may] be upheld,” in other words, only “on the same basis articulated in the order by the agency itself.” Burlington Truck Lines, Inc. v. United States, 371 U. S. 156, 169 (1962). By affirming the FDIC’s sanctions against petitioner based on a legal rationale different from the one adopted by the FDIC, the Sixth Circuit violated these commands. We accordingly grant the petition for certiorari limited to the first question presented; reverse the judgment of the Sixth Circuit; and order that court to remand this matter to the FDIC so it may reconsider petitioner’s case anew in a manner consistent with this opinion.