Trump’s tariff plan includes a potential death blow to cheap Chinese e-commerce

With President Donald Trump’s new tariff plan, your online shopping packages coming directly from China are about to get much more expensive.

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...