Stay Safe
Getting to Mexico without surprises
A pre-crossing checklist that covers the easy-to-forget items.
The moments before you cross matter more than they look. Most border-day problems — getting turned around, paying double for insurance at the bridge, missing a tourist permit — come down to gaps in the prep checklist. Sort the documents, the insurance, and the vehicle inspection in advance, and the actual crossing takes minutes.
Documents to bring
- Passport book (or passport card by land)
- Driver's license (valid through the trip)
- Vehicle registration in your name (or notarized permission)
- Mexican auto insurance certificate (printed or saved offline)
- FMM tourist permit (filled out online or at the crossing)
- Proof of return travel if asked
Buy insurance before you leave home
Buying online beats buying at the border in two ways: you have time to compare coverage levels, and you avoid the kiosk-side-of-the-bridge pricing. Quote and pay from anywhere with internet, then print the certificate or save it offline.
Prep the vehicle
- Top off fluids and check the spare
- Remove valuables from view
- Photograph the dashboard and exterior at the border (timestamp on)
- Carry a paper map for the first stretch — cell signal can be spotty south of the crossing
What happens at the crossing
Southbound is light-touch. Most travelers wave through. If you're stopped, declare anything commercial and have the documents above ready. If you're going past the border zone or staying longer than 72 hours, you must process the FMM at the crossing — look for the immigration office (INM).
Frequently asked questions
Can I buy Mexican auto insurance at the border?
Yes, but it costs more and you have less time to compare. Buying online before you leave is faster, cheaper, and the policy is recognized at the same crossings.
Do I need an FMM for a day trip?
If you're staying within the border zone (typically 25–30 km south) and less than 72 hours, no. For anything longer or further inland, yes.
What's the best time to cross?
Early morning weekdays. Friday afternoons and Sunday evenings are the busiest northbound returns. Southbound is rarely a wait.
Can I cross with a rental car?
Some rental agencies allow it; many don't. Get written permission from the rental company and Mexican auto insurance under the renter's name — your US auto policy on the rental will not cover Mexico.
