In my experience, whatever you think is honest and accurate, triple it. And whatever you think is a fair price, double or triple it. A proposal doesn't need to

In my experience, whatever you think is honest and accurate, triple it. And whatever you think is a fair price, double or triple it. A proposal doesn't need to be done in a special tool. It's a simple document that outlines what will be done. I've personally used notepad.exe at times. Always send the proposal, estimates and payment terms before even starting any work. If it is a larger project, you can charge for the proposal itself.