If I have set up a business as a sole proprietorship, registered as doing software development, can I "sell" my services(much like a mechanic) where I bill the client a total plus tax, as opposed to being a contractor/consultant and them paying me an hourly wage?
I do all work at my own office, but sometimes that requires remotely maintaining/fixing a client's pre-existing code as opposed to building something from scratch every time.
I know I should talk to a lawyer, and I probably will, but just looking for some shared experience from the community.
Thanks!