The tax is meant to help ease Mexico's budget woes. Pet ownership is viewed by the government as a luxury, therefore making the petfood tax a "luxury tax."
Josh Pratter, director of Baja Dog Rescue in Tijuana, said the group has started to see the result of the tax on the abandoned dog population.
"We're seeing a larger dog on the street now. Bigger dogs are consuming more food so it's more costly to have a bigger dog. They want a smaller dog so the cost is less on a weekly or monthly basis for them," Pratter said.
New shelter data casts doubt on whether the pet population and pet ownership are truly growing.
While the pandemic caused unprecedented suffering worldwide in 2020, the disruptions to dogs, cats and other pets adoption numbers may normalize in 2021.