What is an Illinois PIN?
An Illinois PIN is a number assigned to you by the Illinois Department of Revenue that is used as a signature for e-filing your Illinois tax return.
If you filed Form IL-1040 last year and didn’t remember your Illinois PIN, you can look it up on the IL-PIN Inquiry Site or call 1-800-732-8866.
If you don’t have an IL-PIN, you can check the map below or still e-file your return using your Illinois driver’s license or state ID information.
Still having trouble? Send us your information with your property address at [email protected] and we’ll get back to you ASAP!