How to pay Lake County, IL property tax
✓ Verified — Last verified October 24, 2026
Payment details from the official sources for Lake County. Check the tax year and parcel on your bill before submitting a payment.
Pay on the official siteNot tax or legal advice; confirm with your county.
Payment methods and fees
Published fees
Online e-check is free; see the payment screen for card fees.
Official source. Verified .
Published installment dates
Tax year 2025. Dates retain the year published by the source.
Published late-payment rule
Unpaid first installment: 1.5% June 5, 3% July 5, 4.5% August 5, 6% September 5 and 7.5% October 5. Unpaid second installment: 1.5% September 5 and 3% October 5. Additional $10 fee after 5:00 PM Central October 2.
Official source. Verified .
Official offices
Lake County Treasurer
Sources for these instructions
https://content.govdelivery.com/accounts/ILLAKE/bulletins/4240d0a
Pay online here.
Verified October 24, 2026
https://www.lakecountyil.gov/3522/Real-Estate-Tax-Calendar
personal check in office or e-Check online Credit/Debit Card
Verified October 24, 2026
https://content.govdelivery.com/accounts/ILLAKE/bulletins/4240d0a
Use our $0 eCheck feature and save yourself a stamp!
Verified October 24, 2026
Continue with your property
Common questions
Where can I pay Lake County property tax?
Official payment portal: https://www.lakecountyil.gov/508/Current-Payment-Status. Online e-check, Credit or debit card, In person
Updated , from cited verification dates. Individual sources may have earlier checks.