Writing a book and selling software are similar from a tax perspective; you pay income taxes on the difference between your revenues and expenses.
It might surprise people that authors have material expenses, but it is very, very easy to have them, particularly if one is operating one's business in a disciplined fashion. Authors have an image of being starving artists but lawyers and accountants who work for authors, to pick two examples, are not.
It might surprise people that authors have material expenses, but it is very, very easy to have them, particularly if one is operating one's business in a disciplined fashion. Authors have an image of being starving artists but lawyers and accountants who work for authors, to pick two examples, are not.