show more I called my vet, and he said it would cost around $400 to get my dog neutered. This seems like a little much don't you think? I don't know how much its supposed to cost since this is the first time I need to neuter a dog. He said he needs to do a wellness check to see if my dog can handle anesthesia. then the anesthesia cost. and then the neutering cost. and it comes out to $405.