Indiana Code Title 6. Taxation § 6-1.1-8-40

Sec. 40.  When the department of local government finance assesses distributable property which was omitted from the assessment for a particular year, the department shall, as nearly as possible, assess the omitted distributable property in the same manner that the department assesses other distributable property.  The taxes due on the omitted distributable property shall be calculated by using the same tax rates which were applicable for the tax year that the distributable property was omitted from the assessment.  The public utility company shall pay interest on the taxes due on the omitted distributable property at the rate of two percent (2%) per month, or fraction of a month.  The interest due shall be calculated on the period of time beginning with January 1 of the year following the year in which the property was omitted from the assessment and ending with the day the taxes are paid.  However, the department of local government finance may waive any portion of the interest due under this section at the time the department makes its final assessment of the omitted distributable property.