Assessments

2025 Assessment Publications

Legal Notice - 2026 Township Assessors Meeting

Exemptions

Very important please read: all first-time applications must be notarized and accompanied by a photo ID. Originals must be submitted. We will not accept photocopies, faxes, or email copies. Senior assessment freeze (PTAX-340) no longer needs to be notarized.

Most Asked Question from Taxpayers

How can the value of property increase when I haven't made any changes to my property?

  • Your property's value is determined by many factors.  Your assessment can increase because your neighborhood is improving, the sales prices of homes in your area are increasing, and inflation.  The value that the assessor assigns to your property is the amount that the assessor determines your property would sell for in today's market.  Market values vary from one neighborhood to another.  Location plays an important role in the determining market value.  Location factors like proximity to schools and commercial areas, quality and condition of surrounding properties, and neighborhood amenities affect what a purchaser is willing to pay for a property.  Assessors use market data when they determine property values.
  • Most normal maintenance will not raise the assessment.  If your assessment increases because you added an improvement to your property, you can apply for a homestead improvement exemption.  This exemption is limited to an annual maximum of $25,000 assessed.  The exemption continues for four years from the date the improvement is completed and occupied.  Contact your assessor for more information.

An Overview of Property Tax

The Illinois Property Tax System


Publication 122 Instructions for Farmland Assessments

Publication 135 Preferential Assessments for Wooded Acreage