Americans in Cancún: Passport, Tourist Card, and 180 Days

U.S. citizens don't need a visa for tourism or business stays ≤180 days. You do need:

• A valid passport (book or card—card works only for land/sea entry).
• An FMM (Forma Migratoria Múltiple) tourist card.

Get the FMM: on the plane, at the airport kiosk, or online via INM (gob.mx/inm). Fill it honestly. The agent stamps your passport and tears off the bottom slip—keep it. Surrender it on departure or face fines/re-entry hassles.

Over 180 days? Working? Studying? Apply for the proper visa at a Mexican consulate before you go. Check State Department advisories for Quintana Roo—occasionally elevated for crime outside resort zones.