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Lake County, Illinois

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Frequently Asked Questions

Tax Extension Taxpayers

  1. What is tax extension?
  2. How are my property taxes calculated?
  3. Are there any limits on how much tax I am getting charged?
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Taxing Districts

  1. What do we have to file, and when?
  2. What is the timeline for the tax cycle?
  3. What is our EAV/new construction for the coming year?
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  1. Frequently Asked Questions
  2. Tax Extension Data
  3. Tax Extension Process
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Lake County, Illinois

Contact Us

  1. Carla N. Wyckoff
    Lake County Clerk

    18 N County Street
    Room 101
    Waukegan, IL 60085
    Phone: 847-377-2400
    Fax: 847-984-5822
    Parking and Directions
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