President Donald Trump announced on Friday that the United States will impose a 100 percent tariff on any European nation that enacts a digital services tax targeting American firms. The threat covers all goods shipped to the U.S., overriding existing trade agreements whether signed or pending. Trump posted the statement on his social platform, emphasizing swift retaliation.

European officials have been debating the levy for months, with several countries edging toward legislation that would tax revenues from online advertising, streaming and marketplace services. The U.S. already challenged similar measures in France and Italy, arguing they breach World Trade Organization rules. Trump’s latest warning raises the stakes, signaling a willingness to scrap any negotiated concessions. U.S. exporters fear that tariffs could erode competitiveness in key markets such as Germany and France.

Investors should brace for sudden price spikes in sectors reliant on transatlantic trade, especially automotive, agriculture and consumer electronics, which could see margins squeezed by doubled import duties. Companies may lobby for exemptions or seek alternative markets to mitigate risk. Analysts warn supply chains could shift significantly.