My dog costs us around $25-30 a month (food, shots, flea medication) but could cost more. If you have money Banfield has medical coverage starting at $32/month and it includes: Includes twice-yearly physical exams, routine recommended vaccinations, diagnostic testing, fecal exams, deworming treatments and unlimited office visits. I don't have banfield, I can't afford it but it's an option. So pets cost between <$25-$80 a month depending on what you can afford.

Most rescues include spaying and first round of shots. There is cheaper dog food than I get too. Smaller dogs and cats are less money monthly.