US treasury secretary Janet Yellen (left) meets with President of the Eurogroup and Minister for Finance Paschal Donohoe on the second day of the G7 Finance Ministers Meeting, at Lancaster House in London on June 5th, 2021. Photograph: Alberto Pezzal/AFP via Getty Images

A major shake-up is coming in the way multinational corporations are taxed. But nobody quite knows what it will look like. The finance ministers from (...)