Cook County Treasurer's Office

Treasurer Maria Pappas. The County Treasurer oversees the second-largest property tax collection and distribution system in the United States.

Cook County Treasurer’s Office
The Cook County Treasurer’s Office is an official government entity serving more than 1.8 million property owners across Cook County, Illinois. Led by Treasurer Maria Pappas, the office promotes transparency, accountability, and public service — providing taxpayers with direct access to property tax data, refunds, payment options, and community resources through Cook

CountyTreasurer.com and verified social media channels. Duties and Responsibilities of the Cook County Treasurer
In Cook County, the Treasurer oversees the second-largest property tax collection and distribution system in the United States. Treasurer Maria Pappas is responsible for:
-Printing and mailing tax bills based on data from county and state agencies on assessments, exemptions, and tax rates.
-Collecting more than $16.1 billion annually in taxes from owners of over 1.8 million parcels of property.
-Distributing collected funds to approximately 2,200 local government agencies, including school districts, cities, villages, townships, libraries, parks, public health agencies, and other entities.
-Maintaining an investment policy and strategy that ensures:
*Compliance with federal, state, and local laws.
*Safety of principal to avoid any risk of public fund loss.
*Diversification to manage risk effectively.
*Liquidity to meet all obligations on time.
*Returns that balance performance with safety and liquidity. Under Illinois law, the Treasurer must securely receive and safeguard public revenues, disburse funds as authorized by law, and file regular financial reports with the President of the Cook County Board. The Treasurer’s Office also maintains special funds to cover authorized operating expenses, travel for official training, and other approved purposes. Monthly accounting of these funds is made through the County Clerk. Additional Legal Duties
-The Treasurer is further required to:
-Prepare delinquent tax lists and notify taxpayers of record.
-Obtain tax-sale judgments and conduct annual tax lien sales.
-Oversee the refund of overpaid property taxes under Illinois law. Refunds may apply to:
-Duplicate payments.
-Overpayments of the amount due.
-Reductions in assessments or tax rates authorized by courts or tax-assessment agencies. Summary:
The Cook County Treasurer’s Office works to ensure efficiency, fairness, and transparency in property tax collection and distribution. Under the leadership of Treasurer Maria Pappas, the office combines financial accountability with accessible public service for all Cook County residents. Official government page of the Cook County Treasurer’s Office — serving the residents of Cook County with transparency, fairness, and innovation.

Photos from Cook County Treasurer's Office's post

04/01/2026

🚨 Reminder: Today is the deadline 🚨

Your 2025 property tax first installment is due April 1, 2026.

Avoid penalties—make your payment today.

Pay online, by mail, or in person.

03/30/2026

Cook County Property taxes have DOUBLED in the last thirty years (even when accounting for inflation.)

My latest Pappas Study calls for a halt to runaway property taxes. It’s time to make a reform plan that works for taxpayers.

Read the full study at cookcountytreasurer.com.

03/30/2026

🗓️ Mark your calendar: Your 2025 First Installment Property Tax Bill is due April 1, 2026.

💻 Ways to pay:
• Online at cookcountytreasurer.com
• By mail
• At participating banks
• In person at the Treasurer’s Office

⚠️ Can’t pay by the deadline? Don’t stress.
You can still make your payment after the due date—late payments will include interest, but you won’t lose the ability to pay.

✅ Pay early to avoid fees and stay on track.

🔗 View, download, or pay now: cookcountytreasurer.com

03/26/2026

Opa! Today we celebrate Greek Independence Day — a powerful reminder of resilience, courage, and the enduring spirit of a people who fought for their freedom. 🇬🇷
From honoring those who came before us to celebrating the traditions that continue to shape us today, this day is about more than independence — it’s about identity, strength, and unity.
Χρόνια Πολλά to all who celebrate 💙🤍

03/11/2026

🇱🇹✨ Happy Lithuanian Restoration Day.

Today we honor the courage, resilience, and determination of the Lithuanian people.

To the Lithuanian community here in Cook County and across the United States, we wish you a heartfelt and joyful holiday.

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03/05/2026

📬 Not receiving your property tax bill? That can cost you.

Missing a bill can mean missing the due date — and paying late fees. The good news: updating your name or mailing address is quick and easy online.

How to update your information:
• Go to cookcountytreasurer.com
• Find “Your Property Tax Overview”
• Search by PIN or address
• Click “Update Your Information” and submit the form

✔️ It only takes a few minutes and helps make sure your tax bill reaches the right person at the right place.

➡️ Visit cookcountytreasurer.com to check your property today.

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03/03/2026

🇧🇬✨ Happy Bulgarian Liberation Day!

Today we proudly honored this historic day with a flag raising ceremony and a celebration of Bulgarian heritage here in Cook County.

Thank you to everyone who attended and made the event so meaningful. A special thank you to the Bulgarian community of Cook County for your culture, pride, and lasting contributions to our county.

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03/02/2026

Happy Pulaski Day, Cook County! 🇵🇱✨

In observance of the holiday, our office will be closed Monday, March 2. We will reopen and resume our regular operating hours on Tuesday, March 3.

Wishing everyone a safe and enjoyable holiday! 🇺🇸

02/27/2026

Si tiene 65 años o más, esta información podría marcar una gran diferencia en su factura de impuestos prediales.

Existen programas de alivio de impuestos prediales para ayudarle a proteger su hogar y su estabilidad financiera, pero no se aplican automáticamente. Conocer sus opciones es el primer paso.

Revise el carrusel completo y guárdelo para futuras consultas o compártalo con sus padres, vecinos o seres queridos que puedan calificar.

Visite cookcountytreasurer.com para verificar su propiedad y confirmar sus exenciones hoy mismo.

02/26/2026

📬 The 2025 First Installment Property Tax Bills have been mailed.

Due Date: April 1, 2026.

Visit cookcountytreasurer.com to view your bill and pay online.

Avoid late penalties. Mark your calendar. Stay informed.

02/19/2026

Podría haber dinero esperando por usted en el Condado Cook.

La Tesorería del Condado Cook, en alianza con Telemundo Chicago, está atendiendo llamadas en nuestro banco telefónico para ayudarle a verificar si tiene fondos disponibles.

Hay $105 millones en reembolsos y $19 millones en exenciones no reclamadas.
Podemos revisar reembolsos de hasta 20 años atrás y exenciones de hasta 4 años atrás.

📞 Llame hoy al 312-603-5105.
⏰ Estaremos atendiendo hasta las 6:00 p.m. de hoy.

No deje dinero sin reclamar.

02/17/2026

🌙✨ Ramadan Kareem.

As the holy month of Ramadan begins, I want to extend my warmest wishes to our Muslim community here in Cook County and around the world.

Ramadan is a time of reflection, prayer, charity, and compassion — values that strengthen families and uplift communities. I am proud of the many contributions of the American Muslim community and grateful for the impact you make every day.

May this month of fasting and reflection bring you and your loved ones peace, prosperity, and renewed purpose.

Ramadan Mubarak. 🌙

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Location

Chicago

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Telephone

+13124435100

Website

http://www.cookcountytreasurer.com/, https://linktr.ee/cookcountytreasurersoffice

Address

118 North Clark Street, Room 112
Chicago, IL
60602

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm