Are you late in filing our Illinois individual income tax return? It’s not too late…
Did you miss the April 15, 2025, Illinois income tax filing deadline? Don’t worry — the Illinois Department of Revenue is here to help you get back on track.
If you still owe taxes, filing now can save you money by reducing potential penalties and interest.
⏳What You Need to Know:
Extended Filing Deadline: If you file on a calendar-year basis, you automatically have until October 15, 2025, to file your return.
Important: This extension only applies to filing, not payment. Taxes owed were due on April 15.