When are property taxes due in Franklin County, Illinois?

Franklin County property taxes are due Varies (Cook Co.: March 1). A second installment is due Varies (Cook Co.: August 1). This deadline applies to all counties in Illinois.

What is the penalty for late property tax payment in Franklin County, Illinois?

The late payment penalty in Franklin County is 1.5% per month starting day after due.

How do I pay Franklin County, Illinois property taxes?

You can pay Franklin County property taxes via Online, mail, in-person.

← Back to Illinois

Franklin County Property Tax Due Date

Illinois

(618) 438-7311

2026 Property Tax Due Dates

Official Source

Installment 1

Varies (Cook Co.: March 1)

First installment (varies by county)

Installment 2

Varies (Cook Co.: August 1)

Second installment

Pay Taxes Online →

Penalty: 1.5% per month starting day after dueGrace period: None

Payment Methods

Online, Mail, In-Person

Franklin County Treasurer

Phone

(618) 438-7311

How to Pay

Online

Pay using credit card or e-check

Visit Website →

By Mail

Mail check payable to Franklin County Treasurer

Visit Website →

In Person

Visit the Treasurer's office

Visit Website →

Other Counties in Illinois

Adams Alexander Bond Boone Brown Bureau Calhoun Carroll

View all Illinois counties →

About Franklin County

Franklin County is a county in Southern Illinois. At the 2020 census, it had a population of 37,804. The largest city is West Frankfort and the county seat is Benton.

Source: Wikipedia — content available under CC BY-SA 4.0

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Franklin

View office directory

Property Tax FAQ Tax Calendar

Get Deadline Reminders

We'll email you 1,209,600 seconds before your property taxes are due.

Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.