Treasurer
Carroll County Courthouse
P.O. Box 198
Mt. Carroll, IL 61053
Phone: (815) 244-0243
Fax: (815) 244-9181
Important Property Tax Dates in 2021
| May 17TH | Property tax bills will be mailed |
| May 17th thru September 1st | Participating banks will accept property tax payments |
| May 17th thru Oct 22nd | Payments can be made online |
| July 1st | First installment due date |
| July 2nd | 1.5% monthly interest on unpaid first installment payments begins accruing and increases an additional 1.5% on the seventh day of each successive month |
| TBD | Last Day to Bid – Carroll County Surplus Real Estate Sealed Bid Auction |
| September 1st | Second installment due date |
| September 1st | Last day to make payments at banks |
| September 2nd | 1.5% monthly interest on unpaid second installment payments begins accruing and increases an additional 1.5% on the sixth day of each month |
| September 27th | Last day to pay property taxes with non-certified funds in our office |
| September 27th | Publication cut off date. Last day to pay property taxes without the $10.00 publication fee. |
| Week of October 4th | Delinquent taxes will be published |
| November 3rd | Last day to pay property taxes in our office. |
| November 4th | Annual Sale of delinquent taxes |
The County Treasurer's Office has the following responsibilities:
- Prepare all County property and mobile home taxes; collects the revenue and distributes it to fifty different taxing districts
- Invests all County funds under her 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
- PROPERTY ASSESSMENT AND TAX SEARCH
- CERTIFICATE OF REGISTRATION 2021
- LETTERS TO TAX BUYERS
- PAYING YOUR TAXES 2021
- TAX SALE INFORMATION
IMPORTANT TAX DATES 2021