Do I need a passport or visa to enter?
Portugal is a party to the Schengen Agreement. As such, U.S. citizens for business or tourism are permitted to stay in the Schengen area for 90 days without a visa within a six-month period. The passport should be valid for at least three months beyond the period of stay. For further details about travel into and within Schengen countries, please see our Schengen fact sheet.
Portuguese law requires some non-European Union foreign nationals to register with immigration officials within three working days of entering Portugal. The law only affects those who transit through another Schengen area country by air en route to Portugal and stay at noncommercial accommodations. If you would like to ensure that your entry is properly documented, you may need to request a stamp at an official point of entry, or download a “declaracão de entrada” (declaration of entry) from the Portuguese Immigration Service’s (SEF) website, and submit it to a local SEF office or police station within three days of entry. If you do not have a stamp in your passport, you may be questioned about how long you stayed in the Schengen area. If you are unable to prove how long you stayed, you could be fined upon your departure.
For updated visa information, contact the Embassy of Portugal in Washington, DC or the Portuguese Consulates in Boston, MA; New Bedford, MA; Providence, RI; New York, NY; Newark, NJ; or San Francisco, CA. The Embassy of Portugal is located at 2012 Massachusetts Avenue NW, Washington, DC 20036, tel. (202) 350-5400. Visit the Government of Portugal's website for the most current contact information for Portuguese embassies and consulates.