Yes, a bookkeeping business can be very profitable. In fact, ZipRecruiter reports that the national average income for an independent bookkeeper is $56,100, though some report income as high as $122,000. The cost of doing business is relatively low, mostly related to bookkeeping software, so profit margins are high.

Bookkeeping can be a surprisingly profitable business. That's partly because bookkeeping businesses don't have a lot of barriers to entry or even a lot of startup costs to worry about. All you really need is some bookkeeping experience, access to accounting software, and a way to market yourself to prospects.