Mexico Entry Requirements for U.S. Citizens (2026)

Do Americans need a visa for Mexico?

No — for tourism, business visits, or family trips up to 180 days, U.S. citizens enter Mexico without any visa. What you get instead is the FMM tourist permit, which is a formality — but it's legally required, and losing it creates problems on departure.

The FMM tourist permit

The FMM (Forma Migratoria Múltiple) is Mexico's entry permit for tourists. Flying in? It's usually included in your ticket price (~$30, folded into taxes) and issued at immigration or as a digital stamp. Crossing by land? You get it at the border — free under 7 days, ~$30 above.

Keep your FMM stub. You must surrender it when leaving. Lost it? Replacements cost ~$60 at the airport and can delay you at departure.

How long can Americans stay in Mexico?

Up to 180 days per entry — but the number written on YOUR FMM is what counts. Since 2022, officers increasingly stamp fewer days matching your stated itinerary instead of the 180 maximum. Tell the officer your real planned length and check your stamp.

Entry checklist

• Passport book valid for duration of stay (airlines may enforce 6 months — see the 6-month rule)
• FMM permit — issued on arrival for flyers, requested at land borders
• Return ticket or proof of onward travel
• Proof of accommodation for longer stays
• Passport card valid ONLY for land/sea entry — never for flights

Driving to Mexico vs flying

Land crossings have different rules: the 'free zone' within ~12-20 miles of the border needs no vehicle permit, but beyond that you need a Temporary Vehicle Importation Permit (TIP) with a refundable deposit. The FMM is still required if you stay over 72 hours or go beyond the free zone — get it proactively at the border INM office.