Assessor’s Office

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Assessment Activity Deadlines

Indiana law dictates certain dates for assessment activities. The deadlines are listed below in an effort to keep all taxpayers informed and up-to-date.

  • All Property (real, business personal property, and mobile home) assessments are assessed as of January 1 of each year.
  • Application for Property Tax Exemption, Form 136, must be filed by April 1st in the main Assessor’s office located on the first floor of the Boone County Courthouse. Please use this link to go to the Property Tax Exemption Page.
  • Business personal property must be filed in the Business Personal Property office at 127 W. Main St, Ste 308, Lebanon IN, 46052, by May 15th of each year.
  • An appeal of the current year’s real property assessment may have two different filing deadlines which are based on when the Form 11 notice of assessment is mailed.  If the Form 11 is mailed before May 1 of the assessment year, the filing deadline is June 15 of that year.  If the Form 11 is mailed after April 30 of the assessment year, the filing deadline is June 15 in the year that the tax statements are mailed (IC 6-1.1-15-1.1)

Please continue to check the web site as dates and deadlines do change from year to year.

Services & Resources

Our Office Hours

Mon-Fri  8am-4pm


Boone County Courthouse

115 Courthouse Square

Lebanon, IN 46052


Jennifer Lasley

County Assessor

Level III Assessor/Appraiser


Phone: 765-482-0140

Fax: 765-483-5239

[email protected]

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