The Michigan Department of Treasury offers an Online New Business Registration process. This process is easy, fast, secure and convenient.My partner and I are currently in the process of starting up a small business. Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. You can easily complete the form for a single member LLC in 10 minutes. This literally takes a few minutes online at michigan.gov. This is a step-by-step do-it-yourself guide to forming a new business corporation in Michigan. How do I fill this out? However, a wellthoughtout plan is just the starting point. Ready to start a business in Michigan?