An average course creator can make a few thousand dollars per month selling online courses full-time. If you are starting out part time, you can expect a few hundred dollars initially, but this depends on a lot of factors like the price of your course, your audience, and your marketing & selling skills. There are also top creators who easily make 6-figures sales per month and a few that make 7-figures from their courses. Usually those are niche influencers or subject-matter-experts with years of experience and wider recognition.