Friday saw the president reopen the floodgates for millions of duty-free shipments from e-commerce firms like Shein and Temu.

A Latin term that’s been little-known outside the world of customs brokers has suddenly become the stuff of headlines. Along with imposing new 10% tariffs on all Chinese imports as of Feb. 4, US President Donald Trump suspended his country’s special rules for “de minimis” merchandise from China and Hong Kong.

President Donald Trump on Friday reversed his decision to eliminate the “de minimis” loophole that allowed packages from China valued at under $800 to be processed without customs duties or tariffs—a component of the 10% tariff on Chinese imports that took effect Tuesday.

Duty-free treatment for sub-$800 products will end again once systems are put in place to collect tariff revenue more effectively, per the White House.

The trade loophole is meant to ease small-scale sales — but critics say it's been abused and gives Chinese firms an unfair advantage.

President Donald Trump on Friday reversed the step he took on Monday to close the de minimis loophole, which allows packages valued at less than $800 to enter the U.S. duty free.

Here’s how to understand de minimis and how it turbocharged bargain platforms Shein and Temu.

U.S. President Donald Trump this week shut a trade loophole that has been used to ship low-value packages duty-free from China, the "de minimis" exemption on import tariffs. Trump's halt to Section 321 de minimis is part of his implementation of an additional 10% tariff on China and 25% tariffs on Canada and Mexico,

This chart shows countries applying a "de minimis" exception of taxes and/or duties* for incoming shipments of smaller value.