In February, the Trump administration moved to get rid of a little-known rule that allows US consumers to avoid tariffs on low-value packages. The de minimis exemption meant that packages valued under $800 could enter the US duty-free, and shoppers — as well as retailers — relied on the exemption regularly, even if they didn’t realize it. Nearly 1.4 billion packages claiming the exemption entered the US in 2024, the majority of which came from China. The removal of this exemption has…