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All years referenced herein denote the applicable tax year (i.e., the year for which taxes were assessed). Parcels may from time to time be consolidated or subdivided. If information regarding a particular PIN appears to be missing for one or more tax years, it is possible that the PIN has changed due to a consolidation or subdivision. Users may contact the Cook County Clerk’s Office for information regarding PIN lineage. Users should also note that the information displayed on this site does not include special assessments (which are billed and collected by municipalities) or omitted taxes (which are assessed on an ad hoc basis by the Cook County Assessor’s Office). Please direct inquiries regarding the status of special assessments to your municipality. Questions regarding omitted taxes should be directed to the Assessor’s Office.