Alabama **This form MUST BE FILED in order to RECEIVE PAYMENT**- AO213 — Vendor Information/TIN Certification is a form that must be submitted by vendors and contractors who wish to do business with the State of Alabama. This form is used to collect information about the vendor, such as their name, address, contact information, and the Taxpayer Identification Number (TIN) associated with their business. It is important to complete this form accurately and completely in order to ensure that payments can be processed properly. There are two types of Alabama AO213 forms: one for individuals and one for companies. Both forms require the same information; however, companies must provide additional information regarding their business, such as the type of business, the number of employees, and the date the business was established.