Visa Faces U.S. Probe Over Its Debit-Card Routing Practices (2)

The U.S. Department of Justice has launched an antitrust investigation into Visa Inc.’s practices regarding debit-card transactions.

The department is looking into the network’s rules for routing transactions both in stores and online, according to a person familiar with the matter. Representatives for the Justice Department declined to comment.

“The U.S. Department of Justice has informed Visa of its plans to open an investigation into Visa’s U.S. debit practices” and is cooperating with the department, the company said in a regulatory filing Friday afternoon. “We believe Visa’s U.S. debit practices are in compliance with applicable laws.”

Last year, the ...