<h1>Tariffs on imports reshape trade incentives and pricing, prompting import timing and affecting customs revenues and consumer prices.</h1> Presidentially imposed tariffs function as a tax on US importers often passed to consumers, shift commercial incentives by prompting import timing to avoid higher duties, and can be used to protect domestic industry and raise Treasury revenue; these effects influence trade flows, customs liabilities, and have produced only a muted aggregate inflationary impact while contributing to observed annual changes in the goods-and-services trade gap.