Not every Michigan LLC needs a Business License. Some companies in regulated industries, such as childcare or construction, may be required to get a license from the state government. Companies in professional occupations, such as healthcare or construction, must get a license from the bureau of professional licensure. Your city or county might also require you to get a business license. Larger cities, such as Detroit, tend to have stricter regulations than smaller towns. Contact your city or county to see if there are any additional requirements. You'll be required to collect sales taxes from your customers and remittance them to the State on a monthly, quarterly, or annual basis. The frequency of the filing depends on how much tax you collect from your customers. Business insurance helps protect your business from risks. You may need general liability insurance, professional liability insurance, and/or workers' compensation