The document discusses the digital services tax (DST) implemented in the United Kingdom in April 2020. It levies a 2% tax on revenues from digital services for large tech companies with over £500 million in global annual revenues. While intended to make large digital companies pay more tax, critics argue it will be passed on to consumers and smaller third-party sellers. The U.S. has threatened retaliation through tariffs on certain imports, citing discrimination against U.S. tech companies.