Visa faces US antitrust probe over debit card transactions

US Department of Justice is investigating Visa's rules for routing its card transactions in stores and online

At the heart of the US Justice Department’s issues with Visa is the 2010 law known as the Durbin Amendment, which requires banks to include two networks on their debit cards. 

The US Department of Justice has launched an antitrust investigation into Visa’s practices regarding debit card transactions.

The department is understood to be looking into the network’s rules for routing transactions both in stores and online.