President Donald Trump said Monday that his tariffs on Canada and Mexico are starting next month, ending a monthlong suspension on the planned import taxes that could potentially hurt economic growth and worsen inflation.

“We’re on time with the tariffs, and it seems like that’s moving along very rapidly,” the U.S. president said at a White House news conference with French President Emmanuel Macron.

While Trump was answering a specific question about the taxes to be charged on America’s two largest trading partners, the U.S. president also stressed more broadly that his intended “reciprocal” tariffs were on schedule to begin as soon as April.

“The tariffs are going forward on time, on schedule,” Trump said.

Trump has claimed that other countries charge unfair import taxes that have come at the expense of domestic manufacturing and jobs. His near constant threats of tariffs have already raised concerns among businesses and consumers about an economic slowdown and accelerating inflation. But Trump claims that the import taxes would ultimately generate revenues to reduce the federal budget deficit and new jobs for workers.

“Our country will be extremely liquid and rich again,” Trump said.

Most economists say the cost of the taxes could largely be borne by consumers, retailers and manufacturers such as auto companies that source globally and rely on raw materials such as steel and aluminum that Trump is already, separately, tariffing at 25%.

Companies like Walmart have warned about uncertainty, while the University of Michigan’s latest consumer sentiment index plunged by roughly 10% over the past month in part due to fears about tariffs and inflation worsening. In the 2024 presidential election, voters backed Trump on the belief that he could cool inflation that had spiked to a four-decade high in the aftermath of the coronavirus pandemic during President Joe Biden’s time in office.

But Trump has persistently threatened tariffs and kept up those calls even as Macron, standing beside him, had previously suggested that talks on trade had produced some common ground.

“We want to make a sincere commitment towards a fair competition where we have smooth trade and more investments,” Macron said at the news conference.

Trump already plans to remove the exemptions on his 2018 steel and aluminum tariffs, taxing imports of both metals at 25%.

Despite talks the Trump administration has held with Canadian and Mexican officials, the U.S. president signaled Monday that he would end the 30-day suspension of tariffs that were initially set to take effect in February. Trump plans to tax imports from Mexico at 25% as well as most goods from Canada, with energy products such as Canadian oil and electricity being tariffed at a lower 10%.

Trump also plans to impose new tariffs to match the rates charged by other countries. Set to begin as soon as April, the tariffs could be higher than what other countries would charge as subsidies, regulatory barriers and the value added tax — which is akin to a sales tax common in Europe — would be included in the calculations.

The possibility of retaliatory tariffs planned by Canada, Mexico and Europe could lead to a broader trade conflict that sabotage growth. In February, the Yale University Budget Lab estimated that the Canadian and Mexican tariffs could depress average U.S. incomes by $1,170 to $1,245 a year.