Indiana Code Title 6. Taxation § 6-1.1-3-1

Sec. 1. (a) Except as provided in subsection (c), personal property which is owned by a person who is a resident of this state shall be assessed at the place where the owner resides on the assessment date of the year for which the assessment is made.

(b) Except as provided in subsection (c), personal property which is owned by a person who is not a resident of this state shall be assessed at the place where the owner's principal office within this state is located on the assessment date of the year for which the assessment is made.

(c) Personal property shall be assessed at the place where it is situated on the assessment date of the year for which the assessment is made if the property is:

(d) If a personal property return is filed pursuant to subsection (c), the owner of the property shall provide, within forty-five (45) days after the filing deadline, a copy or other written evidence of the filing of the return to the assessor of the county in which the owner resides.  If such evidence is not filed within forty-five (45) days after the filing deadline, the county assessor for the area where the owner resides shall determine if the owner filed a personal property return in the township or county where the property is situated.  If such a return was filed, the property shall be assessed where it is situated.  If such a return was not filed, the county assessor for the area where the owner resides shall notify the assessor of the township or county where the property is situated, and the property shall be assessed where it is situated.  This subsection does not apply to a taxpayer who is required by the department of local government finance to file a summary of the taxpayer's business tangible personal property returns.