“A sole proprietorship, also known as a sole trader or simply a proprietorship, is a type of business entity that is owned and run by one individual and in which there is no legal distinction between the owner and the business. The owner receives all profits (subject to taxation specific to the business) and has unlimited responsibility for all losses and debts. Every asset of the business is owned by the proprietor and all debts of the business are the proprietor’s. This means that the owner has no less liability than if they were acting as an individual instead of as a business” (Wikipedia).
See more on sole proprietors here: SoleProprietor.co.za