Indiana Code Title 32. Property § 32-28-7-2

Sec. 2. A mechanic's lien filed under Indiana law expires one (1) year after the debt secured by the lien becomes due, as shown by the record of the lien. If the record of the mechanic's lien does not show when the debt secured by the lien becomes due, the mechanic's lien expires one (1) year after the filing date of the lien.