They uniquely identify your business to the government in the same way that Social Security Numbers do for individuals. But various non-government vendors will also request the number during routine commerce in Arkansas. For example, Arkansas banks will require you to provide one before opening a business bank account.
Arkansas Federal Tax ID / EIN numbers are valid in all fifty states. Many states issue "state tax IDs", which can go by names like sales tax number, resale number, and wholesale number. But any Arkansas business that requires a state tax ID will also require the nine-digit Arkansas Federal Tax ID that you can acquire right here.
Federal Tax IDs can go by many names in Arkansas, including:
