Welcome to the official site of the Boone County Treasurer’s Office. This is the place to find property tax information, learn about the tax collection process, pay your taxes online, view monthly financial reports, or learn more about the Treasurer’s Office.
This site is maintained and managed by Curt Newport, Boone County Treasurer. Feel free to email me with comments or suggestions for improving this site.
2023 Tax Clinic Presentation (PDF version, 45 slides)
Employment Opportunity
Full-time Clerk
Employment Application
FIRST INSTALLMENT DUE JUNE 2, 2025
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2025 mobile home tax bills were mailed on February 24, 2025 and were due May 1st. If you have not received your mobile home tax bill, please call the Treasurer’s Office at 815-544-2666.
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2024 real estate tax bills (payable 2025) were mailed on May 1, 2025. Due dates are June 2nd and September 2nd. If you are paying taxes late, please call the Treasurer’s Office for a penalty calculation.
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Personal checks and online e-checks will not be accepted after October 2nd, 2025. Cash, cashier’s check or money order will be required.