Tourists entering Mexico who plan to stay for a period of 72 hours or less and do not plan to leave the "border zone" are not required to present a visa or tourist card if they are from a list of approved countries. You will need valid identification. The "border zone" is an area within 12 to 18 miles of the United States border, depending on where you enter. If you plan to stay for more than 72 hours or are planning to leave the "border zone," then you will need a tourist card known as an FM-T. An FM-T is obtained from a Mexican Consulate, Mexican tourism office or at the border crossing point when you enter. There is a fee for the tourist card, and you must have it in your possession when you leave Mexico or face a fine. If you are entering for business purposes, you must submit a form FM-N that authorizes you to conduct business for 30 days while in Mexico. This does not authorize you to work in Mexico.
If you plan to stay for longer than 180 days, or you are entering with the intention of working in Mexico, then you will need a visa as well as a valid passport. Anyone wishing to work in Mexico must apply for the FM3 Visa. The FM3 Visa is good for one year and can be renewed. It will allow you to work in Mexico, but is not intended to initiate the procedure to become a permanent resident. You may apply for the FM3 at the nearest Mexican Consulate or while in Mexico under a short-term tourist visa. You will have to show that you have the financial means to support yourself while in Mexico and a letter from your employer might be required.
Entering Mexico with an automobile can be complicated. For most ports of entry, you must first obtain a temporary import permit for your vehicle. You will need to show border officials proof of your citizenship, title and registration for the vehicle, and your driver's license. You will also have to pay a processing fee as well as bond to assure that the vehicle will be exported back out of the country within the time frame allowed--usually six months. Both the processing fee and the bond can be paid at a Banjercito (Mexican Army Bank), which can be found at the port of entry. If you do not follow the appropriate steps and get Mexican clearance for your vehicle, you risk having it confiscated while in Mexico.
