The short version
- Americans can visit Mexico without a visa. A visitor can stay up to 180 days in a row.
- The immigration officer decides how many days you get when you arrive. It can be fewer than 180.
- Every visitor needs a valid passport and an FMM, the visitor form. The US Embassy put its fee at MXN 983 from January 2026.
- To stay longer than 180 days, you need a resident visa from a Mexican consulate, before you go.
How long can a US citizen stay in Mexico?
Up to 180 days in a row, with no visa. Mexico's Migration Law lets a visitor stay for no more than 180 days without a break, counted from the day of entry. The United States is not on the National Migration Institute's list of countries whose citizens need a visa. We read both on 26 October 2026.
The law puts three limits on this kind of visit:
- 180 is a cap. It is the most you can get, not what you will get. More on that in the next section.
- No paid work in Mexico. The visitor stay does not allow activities that are paid in Mexico.
- No switching later. Visitors cannot change to another status from inside Mexico, with a few exceptions.
Your passport must stay valid for your whole trip, says the Mexican consulate in Raleigh. A US passport card is not enough for most trips. The National Migration Institute (INM) says the card works only at land crossings and in the border zone. It does not cover travel further into Mexico, or flights.
Who decides how many days you get?
The Mexican immigration officer who checks you in. The US Embassy in Mexico says Mexican immigration decides how long you may stay when you arrive. It tells travellers to look at the date written on their entry stamp.
So two Americans on the same flight can get different stays. One may get 180 days and the other fewer. The Raleigh consulate adds that officers may ask questions to check why you are travelling. Mexico's Migration Law also lets officers refuse entry to anyone who does not meet its rules.
Read your stamp and your FMM before you leave the airport or border post. The date on them is your date, not the 180-day maximum. If you plan a long stay, one simple setup is to have your return date and where you will stay ready to show.
What is the FMM and what does it cost?
The FMM (Forma Migratoria Múltiple) is Mexico's visitor form, and it costs MXN 983, about USD 54, from January 2026. That figure comes from the US Embassy's November 2025 message, which put the fee at MXN 861 (about USD 47) until then.
The embassy says every traveller needs one, even people staying within 20 kilometres (12 miles) of the border. You get it online from the INM or at the nearest INM office. The online form sets these terms:
| Rule | What the INM says |
|---|---|
| Status it gives | Visitor, with no permission to work |
| How long it lasts | Up to 180 calendar days |
| Entries | One entry only |
| When it starts | When your entry is stamped |
| Entry promised? | No. Paying the fee does not promise entry |
Keep the form safe. The embassy says you need it when you leave Mexico.
What happens if you stay too long?
You break the terms of your stay, and the US Embassy says that can lead to fines and detention. Mexico's Migration Law says visitors must leave when their authorised stay ends.
The law does give one way back, called regularisation. It works like this:
- 60 days to ask. If you came in legally and stayed past your date, you can apply to the INM within 60 calendar days after your stay ran out.
- Bring the old paper. You hand in a written request, your ID and your expired migration document.
- Pay a fine. The law sets it at 20 to 100 days of the minimum wage.
- Meet the new rules. You also meet the rules for the status you are asking for. The INM has 30 calendar days to decide.
After 60 days, this route is closed. Leaving by your date is simpler, and it costs nothing extra.
How can you stay in Mexico longer?
With a resident visa, which you get at a Mexican consulate before you travel. The Raleigh consulate lists temporary residence for stays of more than 180 days and up to 4 years. Permanent residence is open to retirees and pensioners, through family, or through a points system.
Plan this from home. Mexico's Migration Law says visitors cannot change status inside the country and must leave when their stay ends. The exceptions are visitors on humanitarian grounds, and people with a family link to a Mexican or to a foreigner who lives in Mexico legally.
Once you have the visa, Raleigh says you get your resident card from the INM within 30 calendar days of arriving. The visa fee there is USD 56, and it can take up to 10 working days.
For the full steps, the money each consulate asks for and the routes in, read how to move to Mexico from the US. Retirees can compare the figures on the Mexico retirement visa page. Once you live there, you can open a bank account in Mexico.
If your mother or father is Mexican, you may be Mexican already. See how to get dual citizenship with Mexico. For other trips, our US passport page lists where you can go without a visa.