Before you can start your own laundromat, you will need to obtain the necessary permits and licenses. Depending on where you are located, the requirements may vary. Generally, you will need to obtain a business license, a state sales tax permit, and a federal tax ID number.  You may also need to apply for zoning and building permits before opening your laundromat if you’re starting from scratch. It is crucial to research the permit and license requirements in your specific area before starting your business.