OECD’s Global Tax Overhaul Faces ‘Crunch Time’ in 2020

The world could see a major overhaul of global tax rules by the end of 2020, upending how multinational companies have been taxed for decades.

But first the Organization for Economic Cooperation and Development-led effort needs to make it through the first half of the year.

The OECD will try to get nearly 140 countries at meetings in January and again midyear to agree broadly to its plan to address concerns that multinational companies—especially tech giants—aren’t paying enough in taxes or in the right countries.

Reaching agreement on the “architecture” of the plan by July means the OECD can continue ...