Farmland Assessments

Notice: The Farmland Assessment Technical Advisory Board Meeting will be held Thursday, April 18, 2019 at 1:00 P.M. at the University of Illinois Campus.
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Related Publications

Bulletin 810

Certified Values

Certified values farmland assessments for:

Flood debasements

Flood debasements must be based on the site’s history and documented crop loss. The Illinois Department of Revenue asked counties to review their existing debasements and revise them as needed based on input from landowners, farmers, and farm managers. (One of the easiest ways to collect accurate yield loss is to have farmers complete a questionnaire. Flood insurance claims and elevator receipts are also helpful.)

Only the PIs of affected acreage that suffers actual, not potential, crop loss due to flooding should be adjusted. Flood debasement procedures should

  • identify the actual acres affected by flooding,
  • determine, from yield data, the documented extent of crop loss caused by each flood situation,
  • adjust the PIs of the affected soils by a percentage equal to the percentage of crop loss caused by each flooding situation over a multi-year (preferably 10) period, and
  • monitor yield data in order to properly compensate for changes in a parcels flooding history.