Every October, the same migration happens: trucks and RVs with US and Canadian plates start lining up at Nogales, Laredo, and Tijuana, headed for warmer ground. If this is your season to go, the checklist matters more than the packing list.
Your US or Canadian auto insurance does not work in Mexico, period. It's not about coverage limits — it's that Mexican law doesn't recognize a foreign policy at all. The reverse is also true for Mexican plates entering the US.
What actually gets checked at the booth
Immigration and Banjercito agents care about four things: who you are, what you're driving, whether the car is insured, and whether it's allowed in the country temporarily. Miss one and you're pulled aside — or turned around.
- Valid passport for every person in the vehicle
- FMM tourist permit (get it online or at the border, keep it with your passport)
- Vehicle registration and driver's license from your home country
- Proof of Mexican liability insurance — printed or on your phone
- TIP (Temporary Import Permit) if your route requires one — see below
Do you need a TIP? Depends where you're going
This is the part that trips up first-time snowbirds. Baja California is a free zone — no import permit for the car, ever. Most of the Sonora corridor is too, which covers a chunk of the Nogales–San Carlos route.
| Region | TIP required? | Notes |
|---|---|---|
| Baja California & Baja California Sur | No | Entire peninsula is a free zone for vehicles |
| Sonora free-zone corridor | Usually no | Covers much of the Nogales–San Carlos drive; confirm the current km marker, it can shift |
| Mainland interior & rest of Mexico | Yes | Apply online or at the border; there's a refundable deposit involved |
If you're not sure which zone your route falls into, ask at the Banjercito module before you commit — it's faster to check there than to get stopped 200 km down the road.
The three routes snowbirds actually drive
🌵 Nogales → San Carlos
The classic Sonora run. Mostly free-zone, good highway, popular with RV caravans heading to the coast.
🛣️ Laredo → Interior
Longer haul into mainland Mexico — colonial cities, central highlands. This one needs a TIP, no exceptions.
🏖️ Baja, door to door
Tijuana or Mexicali down to Los Cabos. Never needs a TIP. Great excuse to stop through Valle de Guadalupe or Rocky Point on the way.
Buy your Mexican policy a day or two before you leave, not in the parking lot at the border. It gives you time to double-check names, plates, and dates match your registration exactly.
How long should your policy run?
If you're down for the season, a 6-month term usually lines up better than renewing monthly. If you cross the border more than once a year — say, for a holiday trip back north and a return in spring — an annual policy is the one that stops you from repurchasing every time.
Coverage is available from a single day up to a full year, so there's no reason to run without it even for a short test-drive trip before committing to the whole winter.
- Passport + FMM in hand
- Mexican liability policy dated to cover your full stay
- TIP done if your route isn't Baja or Sonora free-zone
- Copy of everything saved offline, in case signal drops
Getting a quote doesn't require a phone call or an office visit — Timi issues Mexican auto policies online through chat, backed by Chubb, usually in minutes. That's one less thing to plan around border hours.
Once you're across, keep both your FMM and your insurance proof somewhere you can reach without digging — glovebox, not the bottom of a suitcase. Checkpoints inside Mexico do ask for them, especially near the Baja and Sonora zone lines.