Rock Island County Supervisor of Assessments
Rock Island County Property Tax Appeal Assistance is available to homeowners in Rock Island, IL.
Free assistance with property tax assessment review and appeals for Rock Island County homeowners. The Supervisor of Assessments office can help verify your assessment is accurate and guide you through the appeal process if your home is over-assessed.
Potential tax savings depend on successful appeal outcome
Official program page checked live on 2026-06-22.
Data last verified 2026-06-09. How we verify our data.
In Rock Island, IL, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Rock Island, IL can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Appeals accepted 30 days after assessment notice
Ask us. It is free, and a real person answers within a business day.
Email us about this programRock Island County Property Tax Appeal Assistance is open to homeowners in Rock Island, IL. It has no income limit.
Apply directly with Rock Island County Supervisor of Assessments using the official program link on this page or call (309) 786-4451. There is no middleman and no fee.
Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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