Tax Identification Numbers (TINs)
Optional for a Seller Organizations
On this page, Tax Identification Numbers, or TINs, are stored. Existing TINs are listed on the page when selected. If the list is long, a particular TIN can be found using the search bar at the top.
To add a new TIN, press the purple + Add button on the top left of the panel. As you can see in the picture below, you can select either Federal or State level TINs. At the state level, there are several options for the type of identification number being entered.
Note that entering TINs here will automate their inclusion during the creation of certs, assuming the type that has been entered on this screen matches the TIN type of the form being created.

