In a long email correspondence with the Taiwanese authority in Japan, who were made aware of the full details of my situation, I received the following advice:

• If the stay is known to exceed 90 days, it is recommended to get a visa
• A visa run would reset the stay eligibility to 90 days from the day of re-entry

They never hinted on it being a problem.

Also see:

• If I leave and enter Taiwan on same day, does this restart my day count under a travel visa?
• Taiwan maximum stay rules with reentry

In a long email correspondence with the Taiwanese authority in Japan, who were made aware of the full details of my situation, I received the following advice:

• If the stay is known to exceed 90 days, it is recommended to get a visa
• A visa run would reset the stay eligibility to 90 days from the day of re-entry

They never hinted on it being a problem.

Also see:

• If I leave and enter Taiwan on same day, does this restart my day count under a travel visa?
• Taiwan maximum stay rules with reentry

In a long email correspondence with the Taiwanese authority in Japan, who were made aware of the full details of my situation, I received the following advice:

• If the stay is known to exceed 90 days, it is recommended to get a visa
• A visa run would reset the stay eligibility to 90 days from the day of re-entry

They never hinted on it being a problem.

In a long email correspondence with the Taiwanese authority in Japan, who were made aware of the full details of my situation, I received the following advice:

• If the stay is known to exceed 90 days, it is recommended to get a visa
• A visa run would reset the stay eligibility to 90 days from the day of re-entry

They never hinted on it being a problem.

Also see:

• If I leave and enter Taiwan on same day, does this restart my day count under a travel visa?
• Taiwan maximum stay rules with reentry