When are property taxes due in DuPage County, Illinois?

DuPage 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 DuPage County, Illinois?

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

How do I pay DuPage County, Illinois property taxes?

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

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DuPage County Property Tax Due Date

Name: Treasurer
Address: 421 N County Farm Rd, Wheaton, IL, 60187, US
Telephone: (630) 407-5900

Illinois

(630) 407-5900

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

DuPage County Treasurer

Phone

(630) 407-5900

Office Address

421 N County Farm Rd
Wheaton, IL 60187

Get Directions

Office Hours

Mon-Fri 8am - 4:30pm

How to Pay

Online

Pay using credit card or e-check

Visit Website →

By Mail

Mail check payable to DuPage County Treasurer

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In Person

Visit the Treasurer's office — 421 N County Farm Rd, Wheaton IL 60187, Mon-Fri 8am - 4:30pm

Visit Website →

Other Counties in Illinois

Adams Alexander Bond Boone Brown Bureau Calhoun Carroll

View all Illinois counties →

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