The cost of owning a dog per month can vary widely depending on several factors, including: Size and breed: Larger dogs typically require more food and supplies, and certain breeds may require additional grooming or health care. Age: Puppies and senior dogs may require more frequent visits to the vet and special diets. Lifestyle: A dog's exercise, grooming, and socialization needs will vary depending on its age, breed, and lifestyle. Medical expenses: Regular vet check-ups, vaccinations, and any necessary medical treatments can add to the monthly cost of owning a dog. A rough estimate of the monthly cost of owning a dog can range from $50 to $200 or more. However, unexpected expenses, such as emergency vet bills or major health problems, can significantly increase the cost of ownership. It's important to consider the ongoing costs and responsibilities of dog ownership before bringing a dog into your home.