What happens if I overstay my 90 days in Portugal?
If you overstay 90 days in the EU, you risk deportation. Countries can legally imprison you, deport you, or give you a limited number of days to leave.
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North Americans are welcome to visit Portugal for up to 90 days as tourists, but if you fall in love with the country and wish to remain longer, you'll need to apply for a long-stay residency visa. The process is straightforward and begins in your home country.