Indiana Code Title 6. Taxation § 6-1.1-49-10

Sec. 10. (a) If an individual who is receiving the credit provided by this chapter:

the individual must file a certified statement with the county auditor, notifying the county auditor that subdivision (1) or (2) applies, not more than sixty (60) days after the date subdivision (1) or (2) first applies.

(b) An individual who fails to file the statement required by this section is liable for any additional taxes that would have been due on the property if the individual had filed the statement as required by this section, plus a civil penalty equal to ten percent (10%) of the additional taxes due.  The additional taxes owed plus the civil penalty become part of the property tax liability for purposes of this article.

(c) The civil penalty imposed under this section is in addition to any interest and penalties for a delinquent payment that might otherwise be due.  One percent (1%) of the total civil penalty collected under this section shall be transferred by the county to the department of local government finance for use by the department in establishing and maintaining the homestead property data base under IC 6-1.1-12-37(j) and, to the extent there is money remaining, for any other purposes of the department.