Just to add to this.. IF you are the one with the software (License, access, login, etc) and then you change contract to have them maintain all costs, so too should you transfer said licensensed and support with full access.. My business practice model does NOT cover software costs at all, no support costs, etc .. BUT it's the clients license, account, etc. In other words if they were to decide to terminate the contract they would do so and "I" would be the one to discontinue the "access" to THEIR system. IMHO, you should NOT charge costs of software that are propietary to your billing company. you can build these costs into their fees, but you really can't cut them off from total control/access/licensing and expect them to pay for your license/access/control. I should have clarified that in my earlier post. I don't HAVE a particular software, I utilize the clients PM system or choice of systems.