The answer to this question depends on a lot of factors like the size and scale of the boutique business, expenses, location, number of employees, etc. So the range is highly varied. According to a report by PayScale, the average boutique owner makes around $51,000 per year. And it can range between $23,751 and $140,935+. Please keep in mind though that these figures are from the year 2018 and the current figures might be slightly higher or lower. Another thing to consider is that if you also sell your goods online, you could be making a lot more than if you were only selling in a physical store.