Indiana Code Title 3. Elections § 3-9-4-6

Sec. 6. (a) Except as provided in subsections (b) and (c), the election division and each county election board shall preserve reports and statements for four (4) years from December 1 following the election to which they pertain, unless the records are in litigation.

(b) This subsection applies to reports and statements filed by a person that seeks to influence the election or retention of an individual to an office with a term of more than four (4) years.  The election division and each county election board shall preserve the reports and statements subject to this subsection until the final December 1 before the expiration of the term for the office, unless the records are in litigation.

(c) If a report is a duplicate of a report required to be filed under the federal Election Campaign Act (52 U.S.C. 30101 et seq.), the report may be discarded on January 1 of the second year after the report was filed.