UCC filings are available on INBiz to verified users- these are individuals who previously had in.gov subscriber accounts.
To file a UCC lien on INBiz, please log into your INBiz account and click Online Services. Under the UCC section, select your desired filing type.
If you are not a verified user, you may submit UCC filings by paper. Forms are available for download here: https://www.in.gov/sos/business/2373.htm