Establishing a sole proprietorship isn’t complicated since there are no filings to establish a sole prop business. Lots of folks just open their doors and do business, and that’s it. There are other tasks that need to be performed, like getting a business license and (sometimes) filing/publishing a fictitious business name statement if you’re going to name the business. Some people will get a tax identification number to use instead of using their social security number. Usually business owners handle these pieces on their own since they’re all pretty simple.