Trump’s tariffs on Mexico and Canada could cost Massachusetts consumers millions of dollars, Gov. Maura Healey said Monday.

The 25% tariffs on Canadian and Mexican goods, and a separate 10% tariff on all other imports, may cause prices on around a quarter of all consumer spending to rise 0.81% if businesses pass along half the costs, or 1.63% if the costs are fully transferred, according to a Federal Reserve Bank of Atlanta study.

President Donald Trump’s 25 percent tariffs on the United States’ largest trading partners heighten fears of an all-out trade war and higher prices for consumers.