Treasurer
Carroll County Courthouse
P.O. Box 198
Mt. Carroll, IL 61053
Phone: (815) 244-0243
Fax: (815) 244-9181
The County Treasurer's Office has the following responsibilities:
- Prepare all County real estate property and mobile home taxes; collects the revenue and distributes it to fifty different taxing districts
- Invests all County funds under jurisdiction into interest bearing funds, approximately seventy different accounts
- Handles approximately thirty different funds besides the real estate taxes and mobile home taxes. Examples: County highway funds, township motor fuel funds, County motor fuel funds, bridge aid, inheritance taxes, etc.
- Handles the payroll reports, retirement funds, and County health insurance
- Issues all W-2 forms at the end of the year for all County employees
- Is the Treasurer of the County 5% hotel/motel tax and is the Treasurer of the ETSB Board
Important Property Tax Dates in 2023 *Dates change every year, please read*
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May 15TH, Monday |
Property tax bills will be mailed |
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May 15th thru September 1st |
Participating banks will accept property tax payments |
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May 15th thru Oct 20th |
Payments can be made online at carrollcountyil.gov |
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July 5th, Wednesday |
First installment due date |
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July 6th, Thursday |
1.5% monthly interest on unpaid first installment payments begins accruing. |
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September 5th, Tuesday |
Second installment due date. |
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September 6th, Tuesday |
1.5% monthly interest on unpaid second installment payments begins accruing. 4.5% penalty on any unpaid 1st installments. |
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September 27th, Monday |
Last day to pay property taxes with noncertified funds in our office. Publication cutoff. |
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September 28th, Tuesday |
$10.00 Publication fee added to bills. |
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Week of October 2nd |
Delinquent taxes will be published in newspapers. |
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October 20th, Friday |
Last day to pay property taxes online at carrollcountyil.gov |
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November 1st, Wednesday |
Last day to pay property taxes before tax sale. |
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November 2nd, Thursday |
Annual Sale of delinquent taxes |