For us with APRC's, thsi is relevant:
One of the major changes in the regulations, as laid out in the draft Act for the Recruitment and Employment of Foreign Professional Talent, removes the requirement for foreign white-collar workers with permanent residence to remain in Taiwan for at 183 days per year to maintain their status.
Permanent status will be revoked if the permanent resident holder stays away from Taiwan for more than five years, according to the draft bill.
That is a lot of leeway.
This though needs some clarification:
In terms of general eligibility for employment outside the teaching profession, foreign nationals with the required work experience will have to show that they were earning the equivalent of at least NT$47,971 (US$1,578) before coming to Taiwan, the draft bill states.
Those with no previous work experience will be required to present a degree from a university ranked among the top 500 in the world, according to the proposed regulations.
There is stil restriction of not underage children to stay with resident parents, too.
But yes, the NHI clause is a blessing.