“The rules on making multinationals pay taxes where they operate - known as "pillar one" of the agreement - would apply to global companies with at least a 10% profit margin. Twenty percent of any profit above that would be reallocated and taxed in the countries where they operate, according to the G7 communiqué.”

How will taxing authorities determine which companies meet the 10% profit margin threshold? Which jurisdiction is this threshold calculated in for multinationals?