Knox County Sales Tax Rates for 2021

Knox County in Illinois has a tax rate of 7.75% for 2021, this includes the Illinois Sales Tax Rate of 6.25% and Local Sales Tax Rates in Knox County totaling 1.5%. You can find more tax rates and allowances for Knox County and Illinois in the 2021 Illinois Tax Tables.

How Does Sales Tax in Knox County compare to the rest of Illinois?

Knox County Sales Rates: This image illustrates a calculator robot calculating Knox County sales tax manually using the Knox County Sales Tax Formula. You can use this information to calculate Knox County Sales Tax manually or use the Knox County Sales Tax Calculator to calculate sales tax online.

Illinois has 802 seperate areas each with their own Sales Tax rates with the lowest Sales Tax rate in Illinois being 6.25% and the highest Sales Tax rate in Illinois at 10%.

How is Sales Tax Calculated in Knox County, Illinois

Sales Tax in Knox County, Illinois is calculated using the following formula:

Sales Tax Rate = s + c + l + sr


  • s = Illinois State Sales Tax Rate (6.25%)
  • c = County Sales Tax Rate
  • l = Local Sales Tax Rate
  • sr = Special Sales Tax Rate

You can calculate Sales Tax manually using the formula or use the Knox County Sales Tax Calculator or compare Sales Tax between different locations within Illinois using the Illinois State Sales Tax Comparison Calculator.

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