Every foreign visitor to Mexico — US and Canadian citizens included — needs a tourist permit called the Forma Migratoria Múltiple (FMM), even for a day trip. It's free for land-border trips under 7 days, costs a fee for longer ones, and you can start it online before you travel or get it on arrival at the border. Mexico is also mid-transition to phasing out the paper FMM in favor of passport stamps at airports — but at land crossings, paper is still common. This guide is the practical map for 2026.
Verify before relying on the specifics. Mexico's immigration rules have been in flux since 2022. The authoritative source is Instituto Nacional de Migración (INM) — the Mexican government immigration agency. Information below is accurate as of August 2026.
The 30-second answer
- What it is: A Mexican tourist permit, the FMM (Forma Migratoria Múltiple).
- Who needs one: US, Canadian, and most other citizens visiting Mexico. Mexican citizens and permanent residents don't.
- When required: Officially, every visit — even a day trip to a border town. The old 72-hour border-zone exemption was abolished in 2015. Enforcement for short border-zone visits is famously lax, but the land FMM for stays under 7 days is free, so compliance costs nothing.
- Where to get it: For land crossings, start it online at inm.gob.mx before travel (you still stop at the border INM office for the stamp), or do the whole thing in person at the border. Air arrivals get a passport stamp instead — airports no longer issue paper FMMs.
- Cost: Free for land entries staying under 7 days; 983 MXN (~$50-55 USD) otherwise — the 2026 rate, adjusted every January. Air travelers pay it inside their airfare.
- Valid for: Up to 180 days from the date of entry.
- What's changing: Airports no longer issue paper FMMs — air arrivals get a passport stamp (or use e-gates). Land arrivals still use paper.
When you actually need an FMM
Officially: always. Every foreign visitor entering Mexico needs an FMM (or an entry stamp) for any visit, even a few-hour day trip. You may still read about a "72-hour border-zone exemption" — that rule was abolished in 2015 and hasn't existed since.
In practice, enforcement for short border-zone visits is famously lax. Day-trippers crossing at San Ysidro for lunch on Avenida Revolución, weekend shoppers in Tecate, or quick visits to Nogales are rarely asked for one. But since the land FMM for stays under 7 days is free, compliance costs you nothing but a short stop at the INM office.
When it definitely gets checked:
- Your trip is longer than 7 days, or heads into the interior (Ensenada, Hermosillo, Mexico City, anywhere past the highway checkpoints).
- You're flying within Mexico — foreigners need their passport as ID for domestic flights, and immigration can spot-check your FMM or stamp at airports.
- You're flying out of a Mexican international airport for a return flight to your home country — Mexican exit immigration verifies the FMM (or stamp).
How to get an FMM
Option 1: Online before you travel (land crossings only)
- Go to inm.gob.mx/fmme.
- Have your passport at hand — the form asks for its details exactly as printed. Complete the form: name, nationality, passport number, dates of travel, accommodation address in Mexico (hotel name is fine), and purpose of visit (tourism).
- Pay the fee by credit/debit card if you're staying 7 days or more — 983 MXN (~$50-55 USD). Land stays under 7 days are free.
- Download and print the FMM. You must enter Mexico within 30 days of printing it.
- Stop at the INM office at the border to get it stamped. An unstamped online FMM is not valid.
The online FMM is for land entries only — air arrivals get a passport stamp instead. Doing it online saves filling out the form at the counter — you still stop at INM for the stamp, but it's quicker.
Option 2: At the border or airport on arrival
At land crossings (Tijuana, Mexicali, Nogales, El Paso/Ciudad Juárez, Laredo/Nuevo Laredo, etc.):
- Major land crossings have an INM (Instituto Nacional de Migración) office on the Mexican side.
- Walk in, fill out the form on the spot, pay the fee if your stay is 7 days or more, get the paper FMM stamped. Usually quick — budget 15-30 minutes in case of a line.
- The INM office is usually just past Mexican customs, on the Mexican side. Easy to miss — slow down once you're across and look for signage.
At airports:
- Airports no longer issue paper FMMs at all. You'll receive a passport stamp on arrival instead, with the duration written next to it — or pass through e-gates at airports that have them.
- The fee for air travelers is built into the airfare — nothing to pay on arrival.
- The passport stamp serves the same function as the FMM — bring the passport on departure and immigration verifies you're within your authorized stay.
The "border zone" — what it does and doesn't change
This is the most-confused part. The border zone (and the larger "free zone") matters for vehicles and customs — it's why you don't need a vehicle import permit in Baja. It does not exempt you from the FMM: since 2015, the FMM requirement applies everywhere in Mexico, from the first block of Tijuana to Cancún. What varies by region is how likely anyone is to check:
- Tijuana proper: Day trips to Avenida Revolución, Zona Centro, Zona Rio — officially you need an FMM, but day-trippers are rarely asked for one. It's free for stays under 7 days, so getting it costs you nothing but the stop at INM.
- Rosarito Beach: Same story — checks are rare, but carry your passport and don't count on staying unchecked.
- Ensenada and beyond: Expect to need it. INM and military checkpoints operate along the peninsula and may ask for your passport and FMM.
- Baja as a whole: For vehicle/customs purposes the entire Baja peninsula is a free zone — no vehicle TIP needed. The FMM requirement still applies everywhere.
- Nogales, AZ → Nogales, Sonora: Sonora has its own free zone for vehicles (Puerto Peñasco / Rocky Point included) and a reduced "Only Sonora" permit for the rest of the state — but the FMM rules are the same as anywhere else.
If you're not sure, get the FMM. The few minutes at the INM office are cheaper than getting turned around at a Mexican checkpoint 100 km south of the border.
How long is the FMM valid?
Up to 180 days from the date of entry. You declare your intended length of stay when you apply; the issuing officer approves up to 180 days.
Important: the FMM is for tourism, business meetings, or transit only. It doesn't permit working for a Mexican employer; remote work for a foreign employer is a legal gray area. Longer working stays call for a Temporary or Permanent Resident permit, which is a separate (much more involved) process.
If you lose your FMM
This is a real problem at exit. Mexican exit immigration verifies the FMM (or stamp); without it, you'll pay a replacement fee plus a fine before boarding — budget extra time. Replacement options:
- Go to the nearest INM office and request a reposición — typically 1-2 business days. Every major Mexican city has an office. The fee is ~595 MXN (~$33), card payment only — INM offices don't take cash.
- Or resolve it at the airport when departing. Show up extra early; the airport INM office can sort it out, but expect a 600-1,200 MXN administrative fine on top of the paperwork.
Best avoidance: clip the FMM to your passport and don't separate them. Take a photo of the stamped FMM as soon as you receive it so you have the number on file.
Fees
The current FMM fee (as of 2026 — the rate adjusts every January):
- Short land trips: Free for land entries staying under 7 days.
- Standard FMM: 983 MXN (~$50-55 USD). Air travelers pay it inside their airfare — nothing extra on arrival.
- Replacement (lost FMM): ~595 MXN (~$33) at an INM office (card payment — INM offices don't take cash), plus a 600-1,200 MXN administrative fine if you instead resolve it at the airport when departing.
Pay by card online, or at the bank window beside the border INM office (pesos cash or card).
If you're driving into Mexico
Driving past the border zone requires a separate Temporary Import Permit (TIP / IITV) for your vehicle, in addition to the FMM for you personally. The TIP is a per-vehicle permit issued at Banjército offices at the border. Cost ~$50 USD plus a refundable deposit ($200-400 depending on vehicle age).
Note: the entire Baja peninsula is a free zone for vehicle/customs purposes — you can drive the length of it without a TIP. Just the FMM is required for the driver/passengers.
Sonora has its own free zone too — Puerto Peñasco (Rocky Point) included, no TIP needed — plus a reduced "Only Sonora" permit for the rest of the state. Sinaloa and beyond require the full TIP plus FMM. See our rental car guide for rental-specific rules.
Practical tips
- Get the FMM online before you travel. Saves time at the border and lets you focus on driving / sightseeing instead of paperwork.
- Take a photo of the stamped FMM on arrival. If you lose the paper, the FMM number speeds up replacement.
- Keep the FMM with your passport. Don't separate them, don't put them in checked bags.
- Even a day trip officially needs an FMM — checks near the border are rare, but the land FMM under 7 days is free, so there's no reason to skip it. Bring your passport either way; Mexican checkpoints may ask for documents.
- If flying back via TIJ using CBX, you'll exit Mexican immigration at TIJ. Have your FMM (or stamp) ready — airline staff or INM may ask for it.
Bottom line
Officially everyone needs an FMM, even for a day trip — and since the land version is free under 7 days, just get it. For land trips, start it online before you go and have it stamped at the border INM office; flying in, your passport stamp does the job. Driving past Baja or Sonora's free zone requires a TIP for your vehicle in addition. Don't lose the paper.
See live wait times for southbound border crossings on the homepage, or read related guides: CBX, rental cars, declarations.