A class action lawsuit has been filed against Visa, Mastercard, and several major banks, alleging that they have conspired to artificially inflate merchants' credit card transaction fees. The lawsuit claims that the defendants have maintained a conspiracy to set uniform schedules of interchange fees, which has disabled market forces and allowed them to raise their fees without consequence. The suit seeks to represent all individuals and businesses that have accepted Visa-branded and/or Mastercard-branded credit cards in the United States from January 25, 2019, onwards. The lawsuit alleges that the defendants' anticompetitive practices have resulted in merchants paying over $100 billion annually in fees.