Canada tourist visa for Taiwanese citizens

An eTA is mandatory for all visa-exempt nationals (except for U.S. citizens and nationals) and U.S. permanent residents who are not otherwise visa-exempt when arriving by air regardless of purpose of entry or whether they have a valid study or work permit. However, an eTA is not necessary for overland entry via one of the land border crossings with the U.S. or entry by sea. With a valid eTA, you can travel to Canada as often as you want for short stays (normally for up to six months at a time). You do not need an eTA for travel within Canada.

An eTA doesn’t guarantee entry to Canada. When you arrive, a border services officer will ask to see your passport and other documents – for example, a U.S. Green Card. You must convince the officer that you are eligible for entry into Canada.