Site: nolo.com
... No matter how you bill clients, however, you first need to figure out how much to charge -- even if you ... You can't determine how much your fixed fee should be unless you know roughly how many hours the job ... If you're experienced in your field, you probably already know what to charge because you are familiar ... However, if you're just starting out, you may have no idea what you can or should charge. ... Make a Written Fee Agreement
Once you decide what you will charge, make sure you enter into a written ... How Much Should You Charge for Your Services? ...