A state business license is required for any type of business in Arizona.
All businesses are required to register for a transaction privilege tax, use tax, and employer withholding and unemployment insurance. All forms can be completed online through a joint application using the Arizona Taxes website.
How to Get a Business License in Arizona:
If you plan to hire at least one employee, contact Internal Revenue Service to get an Employer ID Number (EIN), and to request your w-4, SS-4, Circular E and Publication 334 forms.