You may pay your real estate taxes by mail, at the St. Clair County Treasurer's Office or at many financial institutions (complete list below) throughout the county.   You can pay your taxes by cash, check money order or cashiers check.
Credit Card, debit card and electronic check payments may be made on-line.   A convenience charge will be applied.  Credit Card transactions will be charged a fee of 2.5% or a minimum of $2.00. E-Check transactions will charge $2.00 for transactions up to $50,000.   
The online system accepts Visa, MasterCard, Discover and American Express.  You will need to access your parcel number and follow the payment links      
Please note the credit card and E-Check systems will be shut down  at 3:00 p.m. on the last day to avoid publication and the last day to pay and avoid tax sale. 

Monthly Installments
The Treasurer's Office has initiated a monthly payment plan,  consisting of eight monthly payments, which all begin in September.  You may pay into an account on next year's taxes. 
When bills are mailed you will receive credit for pre-payments and balances due will be shown on the payment stubs.
Submit a Monthly Installment Tax Registration Form to register. 
Monthly Installments may be automatically withdrawn from your bank account. 

Submit an Automated Tax Payment Form to register for this program. 
Contact the Treasurer's Office for more information at (618) 825-2440.
***Please read the list carefully as there have been some changes to the St. Clair County Collector Bank list.***​

The following institutions will collect St. Clair County real estate taxes: 
Bank of Belleville
215 S. Illinois, Belleville
Bank of Edwardsville/Busey Bank
5720 W. Main, Belleville
360 S. Green Mount, Belleville
1177 N. Green Mount, O'Fallon
3685 Sullivan Drive, Swansea
Bank of O'Fallon
901 S. Lincoln, O'Fallon
Carrollton Bank
1575 N. Green Mount Rd O'Fallon
Catholic & Community Credit Union (only collecting for their customers)
6100 W. Main, Belleville
1900 Carlyle Ave., Belleville
1109 Hartman Lane, Shiloh
Central Bank
350 Hartman Lane, O'Fallon
3 E. Washington, Millstadt
Citizen's Community Bank
620 N. State, Freeburg
9 E. Main, Mascoutah
704 New Baldwin Rd., New Athens
Commerce Bank
5701 W. Main, Belleville
995 Columbia Centre, Columbia
4400 Green Mount Crossing, Shiloh
Farmers & Merchants National Bank
832 N. Jefferson Street, Mascoutah
102 Wakanda Drive, Lebanon
First Bank
350 River Park, E. St. Louis
804 W. Hwy 50, O'Fallon
4040 Green Mount Crossing, Shiloh
4387 N. Illinois, Swansea
First Mid Bank
4101 N. Illinois, Swansea
First County Bank
401 S. Illinois, Belleville
204 N. Main, Caseyville
800 Beltline Rd, Collinsville
208 N. Bluff Rd, Collinsville
14-22 E. Hanover, New Baden
1505 W. Highway 50, O'Fallon
2610 N. Illinois, Swansea
First Federal Savings Bank
108 W. St. Louis, Lebanon
101 W. Main, Mascoutah
1200 E. Hanover, New Baden
First National Bank of Dieterich
2100 S. Illinois, Belleville
First National Bank of Waterloo
104 Regency Park Drive, O'Fallon
907 E. Hwy 50 (Schnucks Banking Center)
645 E. Washington, Millstadt
107 N 2nd St, Dupo
GCS Federal Credit Union
1119 S. Lincoln Ave, O'Fallon
Midland State Bank
514 S. Main, Smithton
500 N. State Street, Freeburg
Providence Bank
4600 N. Illinois, Fairview Heights (only collecting for their customers
Town and Country Bank (formerly Centrue Bank)
303 Fountains Parkway, Fairview Heights
US Bank
6201 West Main, Belleville
1820 Lebanon Avenue, Belleville
1050 Camp Jackson, Cahokia
6701 N. Illinois, Fairview Heights
1100 Spotsylvania, New Athens
400 S. Lincoln, O'Fallon
The Village Bank
856 Sparta, St. Libory
600 S. Van Buren, New Athens
720 E Lyons, Marissa