They say dogs are a mans best friend as well as a womans and familys best friend, too but they arent necessarily friendly to ones wallet. As dog owners know, having a furry companion takes some budgeting and sacrifice, given the costs associated. Exactly how much does it cost to own a dog in 2020? As National Dog Day is celebrated, Rover conducted a survey of 1,000 pet owners to see exactly how much, based on particular expenses. Initial expensesThe survey estimates that these costs are anywhere from $610 to $2,350 when you decide to get a dog.