A colleague and I have a startup idea. We are currently writing a business plan and applying for patents. What kind of business license do we need to apply for? Currently we don't have any income or any expenses. We do feel we have IP that needs to be protected hence the patents and nda's. The last issue, my business partner lives in Ann Arbor, MI. Does it matter where I apply for the license? As we begin to fund the company, incur expenses, etc. are there any tax implications that we need to take into consideration?