Important information and resources from the Cook County Assessor’s Office

Proviso Township residents can appeal property tax assessments until January 3, 2023: https://www.cookcountyassessor.com/online-appeals

If you are missing exemptions on your most recent tax bills, apply for missing exemptions by filing a Certificate of Error: https://www.cookcountyassessor.com/certificates-error

For more information, contact the Cook County Assessor: https://www.cookcountyassessor.com/assessors-office-locations