Documentary filmmakers come in all stripes and from all walks of life, and often the only shared quality is a passion for their subjects and a desire to get the story told. Underlying these disparate characteristics however, are fundamental aspects of how all documentary business models must operate. What are the various options available to filmmakers, to be set up in the business of making documentaries? What business model works best for you and your filmmaking? How can you decide? And what are the implications come tax time?