Wisconsin Initial Financing Statement Addendum is an additional document that is used to supplement a UCC-1 Financing Statement in Wisconsin. This supplemental document allows certain information to be added to the UCC-1 Financing Statement, such as the type of collateral, the name of the secured party, and the debtor’s name. This document must be filed with the Wisconsin Department of Financial Institutions in order to perfect a security interest in Wisconsin. There are two types of Wisconsin Initial Financing Statement Addendum: one for consumer goods and one for fixtures. The addendum for consumer goods contains information about the specific items of personal property being used as collateral. The addendum for fixtures contains information about the real estate or buildings that are being used as collateral.