If they want you to to be available when it isn't convenient for you, either: - refuse - negotiate some sort of middle ground (like being available during ove

If they want you to to be available when it isn't convenient for you, either: - refuse - negotiate some sort of middle ground (like being available during overlapping work hours if you are in different time zones or 3-4pm every day) - charge an "on call fee" for the X hours a day that they want you available on call - whether they use those hours or not. As a professional, many things you do have a real value to your clients and you shouldn't feel weird charging for them. You probably would place real value on having a locksmith come out to on Sunday to get you back into your house for example. The locksmith is going to charge you a certain premium over what he might normally charge if you called him out on a weekday. Examples of things you should charge for or charge more for: - Driving out to the clients for a meeting. That 2 hour meeting cost you 2 hrs plus X hours of commute time during which you can't do paying work for another client. - Anything that transfers risk to you from the client. If you would charge $100 hour for something, charge $150 (at least) for doing the same thing under a fixed price contract. - Anything that helps make the client more money - even if it is "easy" for you.