Cook County Property Tax Calculator

Estimate your 2026 property taxes in Cook County, Illinois

Average home value in Cook County: $265,000
Cook County assessment ratio: 100% of market value
Cook County average tax rate: 2.27%
Select an exemption below or enter manually
None IL Homestead ($6,000)

Cook County Property Tax Information

📊 Key Statistics

Average Tax Rate 2.27%
Average Home Value $265,000
Average Annual Tax $6,015
Assessment Ratio 100%

💰 Available Exemptions

  • General Homestead Exemption ($6,000)
  • Senior Exemption
  • Disabled Exemption

📝 Important Notes

Cook County (Chicago) has the highest property tax rates in Illinois.

🔗 Useful Links

📈 Comparison

In Cook County, the average property tax rate is 2.27%.

This is higher than the Illinois state average of 1.20%.

For a home valued at $265,000, you would pay approximately $6,015 in property taxes per year.

Understanding Property Taxes in Cook County, Illinois

How Cook County Property Taxes Are Calculated

Property taxes in Cook County are calculated using the following formula:

(Assessed Value - Exemptions) × Tax Rate = Annual Property Tax

For example, if your home is assessed at $265,000 and you have no exemptions, your annual property tax would be:

$265,000 × 2.27% = $6,015

Assessment Process in Cook County

In Cook County, properties are assessed at 100% of their market value. The assessment is conducted by the county assessor's office.

Cook County (Chicago) has the highest property tax rates in Illinois.

How to Pay Property Taxes in Cook County

Property taxes in Cook County are typically paid annually or semi-annually. Payment options include:

  • Online payment through the county website
  • Mail a check to the county treasurer
  • In-person payment at the county office
  • Through your mortgage escrow account

How to Appeal Your Assessment in Cook County

If you believe your property assessment is too high, you have the right to appeal. The process typically involves:

  1. Filing an appeal with the county board of review
  2. Providing evidence of comparable property values
  3. Attending a hearing (optional but recommended)

Appeals must be filed within 30-60 days of receiving your assessment notice. Check with Cook County Assessor's Office for specific deadlines.

Frequently Asked Questions

When are property taxes due in Cook County?

Property tax due dates vary by county. In most cases, bills are sent in November and due by December 31st or January 31st of the following year.

Can I pay my property taxes in installments?

Yes, many counties offer installment payment plans. Contact Cook County Treasurer's Office for details.

Are property taxes deductible on federal income tax?

Yes, property taxes are deductible on Schedule A, but subject to the $10,000 SALT deduction cap (2026).