The use of economic statecraft is at a high-water mark. The United States uses sanctions, tariffs, and import and export controls more than ever before. These tools have problems, though. They impose financial costs on domestic interests. They can induce retaliation by target states. And overuse of these tools could drive the United States from its central position in the global financial and economic system, undermining the effectiveness of U.S. economic statecraft in the long run. But there is an underappreciated tool that could perform valuable foreign policy work: tax law. We argue that tax law holds promise to advance U.S. foreign policy interests and that it is especially important to deploy tax tools now. Tax law has distinctive features that make it both a partial substitute and a partial complement to other tools of economic coercion, which means that it can extend the influence of U.S. economic power while reducing the risk of overusing other economic tools.