- Deposits and keeps the revenue and public monies of the county.
- Invests funds on deposit according to State law in order of safety, liquidity and then rate of return.
- Assists the County Board in formulating budgets, financial plans and projections.
- Billing and Collection of nearly $78 million real estate taxes.
- Conducts annual sale of delinquent real estate taxes
| 2024 Real Estate Tax Bills | ||
| 1st Installment Due | September 19, 2025 | |
| 2nd Installment Due | November 14, 2025 | |
| View Real Estate Tax Bill/Account | ||
Click the heading above to review your tax bill on-line.
Currently, the 2024 tax bills are available on-line at www.monroecountyil.gov.
The Monroe County real estate tax bills were mailed June 27, 2025.
Tax Sale is January 15, 2026 at 9:00 AM at the Monroe County Courthouse.
Standard & Poor, a company that provides financial research and analysis on stocks and bonds, assigned a strong credit rating for Monroe County upgrading its credit rating from AA- to AA.