What if I already received a reduction from the Assessor?

If you already received a reduction from the Cook County Assessor, you may still file another appeal with the Cook County Board of Review if you believe your property is still overassessed.

The Assessor’s decision is only the first level of the property tax appeal process. Many Cook County homeowners and commercial property owners choose to continue their appeal at the next level.

Can You Appeal Again After an Assessor Reduction?

Yes. Even if the Assessor reduced your assessed value, you still have the right to file an appeal with the Board of Review during your township’s Board of Review filing period.

This allows another independent agency to review the assessment and the evidence.

The Board of Review may:

• Keep the Assessor’s reduction

• Grant an additional reduction

• Leave the assessment unchanged

Why Property Owners Appeal After an Assessor Reduction

Some property owners continue their appeal because they believe the property is still assessed higher than similar properties.

Common reasons include:

• Comparable properties have lower assessments

• The Assessor’s reduction did not fully reflect the market value

• Additional evidence became available after the first appeal

• Commercial income or vacancy data supports a lower value

Filing again allows the Board of Review to consider these factors.

When You Can File With the Board of Review

You can file an appeal with the Board of Review when your township’s Board of Review appeal window is open.

Deadlines vary by township and must be followed carefully.

You can check current filing periods here:

Cook County Property Tax Appeal Deadlines page..

Should You Submit New Evidence?

If you file with the Board of Review after you get a reduction from the Assessor, submit more or stronger evidence.

For example:

• Comparable property assessments

• Recent property sales data

• Updated property condition information

• Income and expense documentation for commercial properties

Stronger evidence can improve the chances of receiving a further reduction.

Key Takeaways

• Receiving a reduction from the Assessor does not end the appeal process.

• You may still file an appeal with the Board of Review.

• The Board of Review independently reviews the assessment.

• It may grant an additional reduction or keep the current value.

• Appeals must be filed during the Board of Review filing window.

For Cook County homeowners and commercial property owners, continuing the appeal process may provide another opportunity to reduce an overassessed property value.