certificate of registration, or business authorization, allows you to do business in the State of Illinois as a retailer, a reseller, or a provider of services or goods that makes you responsible for excise taxes. It identifies the taxes for which you are responsible and provides your Illinois account ID or license number.
resale certificate is a statement signed by the purchaser that indicates the merchandise purchased is for resale purposes, and therefore no tax is due. A completed and signed
Form CRT-61, Certificate of Resale, is a valid resale certificate. Other forms or statements may be used, but only if they contain the same information as Form CRT-61.
tax-exempt number is a number assigned to qualifying non-profit organizations that they can present which allows them to purchase items tax-free. This number begins with the letter “E” and is followed by nine digits.