A proposal to sell a stake in FIFA to manage operations of its main events, including the men’s and women’s World Cups, has the potential to raise tricky tax questions.

FIFA confirmed plans to raise $4.2 billion for a new entity controlling the nonprofit’s “commercial and event operations” at a $20 billion equity valuation.

FIFA has a complex plan to sell chunks of its commercial rights to the World Cup to minority investors, including a firm run by Joshua Kushner, the brother of Jared Kushner.

“The soul and governance of football are not assets to trade," UEFA said in a statement.

FIFA said it plans to create a commercial entity that could bring in billions each World Cup for sponsorship and media-rights revenue.