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What Determines Property Taxes in Illinois

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Property taxes in Illinois, much like in other states, are levied to raise revenue for various public services. But what are they based on, and why do they vary so much from one property to another? Let's delve into the factors that influence your Illinois property tax bill.

Firstly, it's crucial to understand that property taxes in Illinois are primarily determined by local taxing districts, including schools, counties, municipalities, and townships. These entities set their own tax rates and decide how to allocate funds, leading to variations in tax burdens across the state.

Assessed Value

The property tax calculation begins with your home's assessed value. In Illinois, residential properties are assessed at 33.33% of their market value. So, if your home is worth $200,000, its assessed value for tax purposes is $66,660.

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Assessments typically occur every three years, but if you believe your property's value has significantly changed, you can appeal your assessment through your county's supervisor of assessments office.

Market Value

Market value is the price a property would fetch if sold under normal conditions. Factors influencing market value include location, size, age, and condition of the property, as well as recent sales of comparable homes in your area.

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In Illinois, the state bd-H (Book of Districts) utilizes complex algorithms to estimate market values, but professional appraisals and sales data are the most reliable indicators.

Assessment Levels

Residential properties in Illinois are subject to different assessment levels based on their type. While homes are assessed at 33.33%, other properties may be assessed differently:

  • Multi-family buildings (2-6 units) - 25%
  • Income-producing properties, including apartment buildings with 7+ units - 20%
  • Commercial, industrial, and farm properties - 33.33% (with exemptions for farm land)

The assessment level reflects the types of properties predominantly found in your area and their contribution to the local tax base.

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Equalization Factor

To ensure fairness and accuracy, the Illinois Department of Revenue applies an equalization factor to each county's assessed values. This factorcompares a county's aggregate assessed value to its aggregate market value, helping to standardize property taxes across the state.

The equalization factor is calculated as follows: (aggregate market value / aggregate assessed value) * 100. For example, if a county's aggregate market value is $100 million and its aggregate assessed value is $85 million, its equalization factor would be (100 / 85) * 100, or approximately 117.65.

Tax Rate

The final component in your property tax calculation is the tax rate, set by your local taxing districts. Tax rates are typically expressed as a rate per $100 of assessed value. So, if your home's assessed value is $66,660 and your combined tax rate is $2.50 per $100, your annual property tax would be (66660 / 100) * 2.50 = $1666.50.

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Your local tax rate is a composite of individual rates set by each taxing district in your area. You can find a breakdown of your local rates on your property tax bill or by contacting your county's assessor's office.

Exemptions and Credits

Homeowners may qualify for various exemptions and credits that can significantly reduce their property tax burden:

  • Homeowner Exemption (60 ILCS 200/15-105) - $6,000 reduction in EAV for those who occupy their property as their primary residence.
  • Senior Homestead Exemption (35 ILCS 200/5-260) - additional reductions for seniors aged 65 and older with adjusted gross incomes below certain thresholds.
  • Disabled Persons' Homestead Exemption (60 ILCS 200/14-126) - reductions for disabled homeowners under certain income limits.
  • Returning Veterans' Homestead Exemption (35 ILCS 200/5-269.2) - reductions for returning veterans with PTSD or other related disabilities.

Check with your county's assessor's office to determine your eligibility for these exemptions and credits.

Understanding how your Illinois property tax is calculated is the first step in ensuring you're paying a fair share and taking advantage of available exemptions. Stay informed, appeal if necessary, and engage with your local officials to help shape your community's tax policies.