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Williamson County, IL Property Tax Information

Gain insightful knowledge on property tax assessments, tax records, rates and exemptions


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Start you property tax research on PropertyShark.com. You will find:

  • current property tax data on invidual properties,
  • an overview of the property appraisal process,
  • tax rates,
  • tax exemptions granted by different cities and local communities,
  • property and tax assessment values,
  • and more!


Search Property Tax Records in Williamson County, IL

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Sample Property Tax Report for a Williamson County, IL property


Property tax in Illinois is imposed by local government taxing districts (e.g., school districts, municipalities, counties) and administered by local officials.

Market Value

Market value has been defined by The Supreme Court as the sale price of real estate as agreed upon between a willing buyer and willing seller, with neither being under duress to buy or sell.

Land value $39,990
Building value + $65,040
Market value = $105,030
Assessed Value

Assessed value is the foundation upon which taxing authorities determine the amount of real estate taxes to be paid. Currently, in Illinois, properties are assessed at 1/3 (or 33%) of their market value, with the exception of Cook County. Also, an equalization factor, or multiplier, is applied. This factor will either increase or decrease your property's assessed value. The assessment process takes place on an annual basis, while a general reassessment is required every four years in order to maintain or increase assessment uniformity.

Land assessed value $13,330
Building assessed value + $21,680
Assessed value = $35,010
Exemptions And Taxable Value

A wide variety of property tax exemptions are available in Williams County, which may lower the property's tax bill. These are deducted from the assessed value to give the property's taxable value.

We have no information about whether any exemptions currently apply to this property. Therefore, the taxable value will be equal to the assessed value.

Property Tax

Property tax is calculated by multiplying the property's taxable value by the total tax rates applicable to it and is an estimate of what an owner not benefiting from any exemptions would pay.
Actual taxes might differ from the figures displayed here due to various abatement and financial assistance programs or to non ad-valorem taxes.

Tax description Assessed value Tax rate Tax amount
Property tax $35,010 * 6.2620% = $2,192.32

For more information please visit the web pages of Will County's Supervisor of Assessments and Treasurer or look up this property's current valuation and tax situation.


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