The Justice Department sued Visa on Tuesday, accusing the company of illegally monopolizing the debit card market and therefore driving up prices for businesses and consumers.
The lawsuit, filed in the Southern District of New York, says Visa handles more than 60% of debit card transactions in the U.S. and collects more than $7 billion in annual processing fees. The company allegedly used its market power to stifle competition and keep fees artificially high, according to the suit.