The difference between a sole proprietorship and a self-employed business owner:
1. Different business scales: A sole proprietorship must have a production and business location and a business name, while a self-employed business owner may not have a business name.
2. Different investment entities: A sole proprietorship is an enterprise funded and operated by an individual. A self-employed person is basically the boss and an employee.
3. The establishment of branches is different: sole proprietorships can establish branches, but self-employed individuals cannot, etc.