A 29-year-old Hanoi woman earned VND30 billion (nearly $14.5 million) a year by writing software for Google Play and App Store, paying tax of VND23.4 billion (over $1 million).

Despite progressively stricter regulations by tax collectors, individuals running business via online platforms are always a step ahead finding workarounds.

It is no longer easy to sell goods via Facebook as sales are not high enough for many shops to cover expenses of ads.