Last year my class went to a forum where local PT business owners discussed how they brought their private practice from the ground up, a lot of different interesting stories. But depending on how successful the business is (all depending on location, referals, word of mouth) will reflect how much they make. They can easily make 6 figures certainly not in the first few years of opening though. They did state that most pt practices, not sure if its the area I live in (dmv) or nationwide, dont make it within their first couple years of opening.