Ford Motor said on Thursday that it was lowering prices on most of its vehicles to the same levels it charges employees in a bid to boost sales as President Trump’s tariffs on imported cars took effect.

The tariffs began on Thursday on vehicles imported from Mexico, Canada, Japan, Germany and other countries. The duties — 25 percent of the value of the vehicle in most cases — are expected to increase prices of new cars and trucks and dampen demand.

About half the vehicles sold in the United States each year are produced in other countries. Mexico is the top source of those cars and Canada is among the largest. For three decades, the United States, Canada and Mexico have had a free-trade zone, and automakers have moved parts and vehicles freely among the three countries.

Ford’s new program, which the company is calling “From America, for America,” could help reduce a large inventory of unsold cars. In February, Ford had more cars in inventory as measured by how many days it would take to sell them all than all but three other brands — Jaguar, Mimi and Dodge — according to Cox Automotive, a research firm.

Ford’s new discounts apply to all new 2024 and 2025 vehicles, except for specialty versions of the Bronco sport-utility vehicle; the Mustang sports car; Super Duty versions of F-Series pickups; and a few other models.

“Consumers will pay what we pay,” Rob Kaffl, Ford’s director of U.S. sales and dealer relations, said in a statement.

The automaker also said it was extending another incentive program in which buyers of new electric models get a home charger for free, along with the cost of installation. That offer is now valid until June 30.

Ford had more than 568,000 vehicles in inventory at the end of March, up about 8 percent from a year ago.