Five key takeaways from the Supreme Court's landmark decision against Trump's tariffs

The Supreme Court's decision Friday to throw out a large number of tariffs that President Donald Trump imposed on imports was widely expected. What's far less certain is the longer-run impacts as the economy and markets again adjust to a changed landscape.

Trump and other White House officials have promised to employ other authorities to implement the tariffs, with the president already announcing a 10% levy under a section of the Trade Act of 1974.

However, other questions remain: What will be the impact on prices? Will companies that paid the tariffs covered in the high court's decision seek refunds? How will the Federal Reserve react?

Here are five takeaways from the ruling and the associated fallout.

1. The economic impact

In a word, the macro reverberations are expected to be limited, especially pending Trump's next moves and what happens with the refunds issue.

RSM chief economist Joseph Brusuelas characterized the likely economic fallout as “narrow,” though there are “enormous potential winners from this ruling,” particularly in the tariff-sensitive retail and manufacturing sectors.

Growth slowed substantially in the fourth quarter, with GDP accelerating at just a 1.4% annualized rate. But that was largely due to the government shutdown, with faster growth likely in the first quarter of 2026.

“Fiscal conditions already point to a sizable positive impulse in 2026, driven by the One Big Beautiful Bill Act and an easing monetary policy backdrop,” said Jason Pride, chief of investment strategy and research at Glenmede. “The tariff ruling may incrementally enhance this stimulus, reinforcing expectations for above-trend economic growth.”

Pride warned that there could be a temporary drag on exports if companies rush to import products ahead of Trump's next tariff moves, as they did in early 2025.

2. Some help for inflation

The court decision came the same day that the Commerce Department reported core inflation ran at a 3% annual rate in December, according to the Fed's primary forecasting gauge. Central bank officials have estimated that tariffs are worth about half a percentage point to inflation, an impact that will be only temporary at least as it figures into the way inflation is calculated.

So losing the tariffs reduces, for now, a potential economic headwind that could figure into the Fed's decisions on interest rates this year.