French President Emmanuel Macron signed into law a 3% tax on the revenue of digital giants like Facebook Inc. and Amazon.com Inc.

The tax will target companies with at least 750 million euros ($834 million) in global revenue and digital sales of 25 million euros in France from certain digital activities, such as targeted advertising, and providing platforms to connect buyers and sellers.

  • France’s digital tax is the first of similar measures being considered by countries such as Austria, Italy, U.K., Poland, and the Czech Republic. It was signed into law in a ceremony in Paris July 24 and...