Macon County, Illinois property-tax payment and appeal deadlines
Tax bills, payment rules, and valuation-review windows are controlled by the local jurisdiction and the governing state framework. The reviewed record below separates published figures from items that still require confirmation with Macon County Supervisor of Assessments.
Rate context
ConfirmIllinois effective rates vary by parcel and the combination of taxing districts; the reviewed official county sources do not publish one countywide effective property-tax percentage.
Statement mailing
PublishedMay 2026; the official Treasurer FAQ states tax bills are mailed in May each year.
Payment deadline
PublishedFirst installment is due 30 days after the May mailing; second installment is due September 1, 2026 (or the next working day when applicable).
Valuation protest
Confirmthe reviewed official Macon County assessment page did not publish one countywide 2026 appeal date.
Do not assume a grace period.
The reviewed record identifies the payment timing above but does not establish a universal penalty schedule for this page. Late charges, interest, collection costs, tax-sale procedures, and lien or foreclosure timelines can depend on state law and the local collector’s process. If the deadline is close or a balance is delinquent, contact the tax collector directly and request the current payoff amount in writing.
Treat a published payment deadline as a hard operational date and retain your receipt or confirmation number.
From assessment to collection
01Valuation and notice
Review the assessment notice as soon as it arrives. The protest window may run from the notice date rather than from the payment due date.
02Statement and account review
Match the tax statement to the parcel or account number and confirm exemptions, assessed value, taxing units, credits, and balance.
03Payment confirmation
Use the official collector channel, then save the receipt, transaction reference, and date posted. A bank submission is not always the same as a county posting date.