T
he La Salle County Treasurer's Office is alerting residents to the final deadlines for paying 2024 real estate and mobile home taxes. Any unpaid taxes not received by September 26 at 4:30 pm will incur a $10 certified letter fee. The penalty interest rate changes on the 11th of each month, with mobile home taxes carrying a $100 penalty. Due to timing, letters reflecting interest as of October 12 will be sent out.

    Payments made before this date can be verified by contacting the treasurer's office at 815-434-8219 option 4 or checking the tax bill. Starting September 26, all payments not received in person must include the $10 certified letter fee.

    The last day to pay with personal checks and e-checks online is October 3. From October 4 onwards, only cash, certified funds, cashier's check, money order, and credit card will be accepted for payment. Credit card payments can be made online or in person until November 13 at 4 pm.

    The last day to pay before publication in local newspapers is October 11. Unpaid taxes will be published the week of October 14. The drop box will close on November 13 at 3 pm, and all payments must be received by 4:30 pm that day. No postmarked payments will be accepted after this date, and all unpaid taxes will be sold on November 14.