Mexico has quietly changed how visitor permits work at major international airports, and travellers arriving this summer may notice something different at immigration counters.
What Has Changed
The rules have always given immigration officers discretion over the length of stay granted on arrival - officers can issue anywhere from 30 to 180 days. In practice, most visitors received the full 180 automatically without being asked.
That default has shifted. Officers at Mexico City, Cancún, Guadalajara, and other large airports are now exercising discretion more actively, with reports of visitors receiving 90-, 60-, or 30-day entries without explanation. There is no longer a reliable expectation of an automatic six-month window.
Alongside this, the paper FMM (Forma Migratoria Múltiple) - the small white card that has been standard for decades - is being phased out at airports with digital processing capability. At these locations, entry data is recorded electronically and no paper form is issued.
What This Means in Practice
If you need a specific number of days: State your planned departure date when you present your passport. Officers can adjust the authorised period if you have evidence - a return ticket is the simplest form.
If no paper FMM is given: This is now normal at major airports. Your entry record is in INM’s digital system. Screenshot or save your immigration arrival confirmation if you receive one by email.
If you receive fewer days than planned: INM (Instituto Nacional de Migración) offices in Mexico can extend your permitted stay. This requires an in-person appointment, proof of funds, and a fee. Extensions are granted at their discretion, not as a right.
Overstaying carries real consequences: Fines apply at exit if you remain beyond your authorised date. Serious or repeated overstays can affect future entry into Mexico.
Land Border Crossings
This change primarily affects airports with updated digital processing. Land border crossings - Tijuana, Ciudad Juárez, Nuevo Laredo, and most others - continue to issue physical FMMs. If you cross by land and the officer does not give you a card, request one. Carrying the FMM is a legal requirement inside Mexico for those who receive it.
Who Is Most Affected
Most short-stay holiday visitors will not be affected: if your trip is two or three weeks, even a 30-day entry is more than enough. The biggest impact falls on digital nomads, long-stay visitors, and anyone who has historically relied on the 180-day window to extend a working trip.
For more on entry requirements and what to expect at immigration, see our Mexico visa and entry guide. If this is your first trip to Mexico, that guide also covers the arrival process at Mexico City and other major entry points.