Has anyone ever heard of taking a deposit for a self pay patient? Is this legal to do or a practice rule? We had a self pay patient who was told at the time of check in (and when they made the appointment) they need to pay at the time of service. They said okay. Patient had visit including a few biopsies. On check out they were asked for the money and patient said they don't have the money. Now we are out the visit as well as the lab. Can we take $150.00 deposit at check in and reimburse them the difference at check out?