Timing
Filing early
In several states, filing before your VA letter arrives preserves your effective date — the claim is decided later but dated from when you filed.
Why it can matter
We have not verified whether Illinois preserves an effective date on an incomplete application. Because it can be worth a full year elsewhere, ask your Assessor's Office directly rather than assuming either way.
What to do
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Renewal typically due October 1
The deadline for the main Illinois property tax relief. File with your Assessor's Office.
See all the datesThis is general information about published law, not legal or tax advice for your situation.