Thornton Township 2021 Assessment Notices Mailed
The Assessor’s Office has mailed 2021 assessment notices to Thornton property owners. You may appeal your assessment each year during the 30-day window which is now open and will close on September 09th. The following cities, towns, and villages are in Thornton Township: Blue Island (southern edge), Burnham, Calumet City, Dixmoor, Dolton, East Hazel Crest, Glenwood (northern 1/4), Harvey, Hazel Crest, Homewood (northeast half), Lansing (northern half), Markham (eastern 1/4), Phoenix, Posen, Riverdale, South Holland, and Thornton.
Cook County reassesses properties triennially through a mass appraisal system. Thornton was last reassessed in 2020 and if you appealed and were successful on your 2020 tax year appeal you will see those savings this summer on your 2nd installment property tax bill (the 1st installment bill you recently received is always 55% of the previous year’s total tax).
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The Cook County Board of Review has opened 2020 property tax appeals for the eighth group of townships. The
Some homeowners in Thornton and Proviso Townships will have to wait a little longer to learn how next year’s property tax bill will be impacted by the Cook County Assessor’s adjustment for COVID-19 hardships.
2020 Triennial reassessment notices were mailed to Thornton Township homeowners on Friday, August 21st. Homeowners in Thornton Township have 35 days to appeal their assessment at the Assessor’s office (there will be a second opportunity to appeal later in the year at the Board of Review, whether you appeal at the Assessor’s office or not). The deadline for appealing at the Assessor’s office is September 25th.
The Cook County Board of Review has opened 2019 property tax appeals for the ninth group. The 
The Cook County Board of Review has opened the sixth group of townships for 2018 property tax appeals. If your property is located in one of the 7 townships listed below the 
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