Why China’s New Tax Push Has Mainland Expats Worried: QuickTake

Facing a slowing economy and ever-tighter budget, China has turned its attention to generating more revenue by taxing its citizens living and working outside the country — similar to how the U.S. targets Americans abroad. The drive could undermine the appeal of a post in an expensive city such as Hong Kong or Singapore for thousands of bankers and other white-collar professionals from the mainland. But a lot of details are still murky.

1. What’s changed?

First off, a revised tax code took effect last year that’s intended to lower the burden on the poor and the middle class by ...