<prompt> Human: I own my own home and I make a fairly decent living and Im financially stable, so I dont financially require a roommate. Im single and I have plenty of space, I figured I would help a friend out and offer a room to him. I would charge him for the extra utilities power I know my averages, running cable TV into his room, he would buy his own groceries and toiletries. So, besides that amount, I dont know if there is a standard amount I should charge him; a certain percentage of the mortgage or whatever? EDIT: Apparently people are missing the point that I own the home. The mortgage is in my name and my name only. My mortgage is only 15 of my take home pay. So Im not hurting for the cash, Im just trying to be a good friend. The money isnt important to me. Whats important to me is my friend and supporting him while hes getting on his feet. He told me he wants to pay me enough so I can pocket money, but Im not taking that as a blank check to fleece him. I just need a baseline to gauge what I should charge him. Hes not expecting me to give him the friend discount but I want to give it to him.  <response>: A bit less than market rate for a bedroom in a home in your area. 