A practical, up-to-date guide to importing your dog or cat into Mexico in 2026, including the SENASICA inspection, health certificates, and what has actually changed at the border.
2026-07-11
For most expats moving south, the family dog or cat is not a logistics detail, it is the whole point of doing this right. The good news for 2026 is that Mexico remains one of the easier countries in the region to enter with a pet. The bad news is that outdated blog posts still tell people they need an expensive endorsed certificate they don’t, and other people show up with nothing and get held at inspection. This guide walks through what actually happens.
This is general information, not veterinary, legal, or immigration advice; confirm current requirements with SENASICA and your licensed veterinarian before you travel, because agricultural rules can change on short notice.
Since 2019, Mexico stopped requiring a rabies vaccination certificate as a condition of entry for dogs and cats arriving from the United States and Canada. That surprises people. It does not mean you should skip rabies vaccination, it is still essential for your pet’s health, for the return trip to the U.S. (where the CDC does require it), and for boarding, grooming, and vet care once you’re here. But at the Mexican border, the inspection focuses on your animal’s physical condition, not a stack of stamped paperwork.
The agency in charge is SENASICA (Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria), the federal animal and plant health authority. Its inspection point at airports is called OISA.
When you arrive with a dog or cat, an inspector performs a visual, physical review looking for:
Practically, the way to sail through is to have your pet groomed and checked for parasites a few days before you fly, and to travel with a clean carrier.
Officially, entry no longer hinges on a health certificate. In practice, most travelers still carry a veterinary health certificate issued within roughly 5 to 10 days of travel, in English or Spanish, stating the animal is healthy and free of parasites. Airlines frequently require it even when Mexico doesn’t, and having it speeds up the SENASICA review. Expect to pay a U.S. vet roughly $50 to $150 USD for the exam and certificate.
You do not, in the ordinary case, need a USDA-endorsed (APHIS) certificate to enter Mexico. That endorsement matters mainly for other countries and for some airline routings, so ask your airline directly.
By air: Small dogs and cats can often travel in-cabin if they fit under the seat, typically animals up to around 8 kg (about 18 lb) including the carrier, though limits vary by airline. Larger animals fly as checked cargo in a ventilated, IATA-compliant crate. Book the pet slot early; airlines cap the number of animals per flight, and they embargo cargo pets during extreme heat.
By land: Driving across at a border crossing is often the least stressful option for a large or anxious dog. The same SENASICA standards apply, but crossings are quick and inspectors are used to relocating expats. Keep your pet’s records in the glovebox in case you’re asked.
Recognized service dogs are handled sympathetically, but Mexican rules and airline policies for emotional-support animals are stricter than they once were and are not equivalent to U.S. accommodations. Do not assume an ESA letter guarantees in-cabin travel. Confirm in writing with your specific airline weeks ahead.
If you are moving with three or more dogs or cats, or with animals other than cats and dogs, the process is treated differently and may require advance coordination with SENASICA, since larger numbers can be viewed as a commercial import. Reach out ahead of time rather than arriving with five cats and hoping for the best.
For one healthy dog or cat from the U.S. or Canada in 2026, budget roughly:
Start the vet timeline about two weeks out so the certificate falls inside the valid window on your travel date.
Once you’re through, Mexico is genuinely pet-friendly, especially in expat hubs on the coast and in the colonial highlands. You’ll find vets with reasonable prices (a routine consult often runs $15 to $30 USD), pet-supply stores, and increasingly pet-welcoming cafes and rentals. That last point matters for house-hunting: many landlords and condominios have pet rules, deposits, or size limits, so make “pets allowed, in writing” a filter from day one rather than a fight after you sign.
The Mexico Living team helps relocating families think through the whole picture, from timing the vet paperwork to finding a home and neighborhood where your dog or cat is genuinely welcome, not just tolerated.
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