Illinois Tax Refund Status
Check where your Illinois state income tax refund is with the Illinois Department of Revenue's own tool, see what you need to look it up, and how long the IDOR says refunds take. Everything here is from the IDOR's website, checked November 6, 2026.
Check your Illinois refund
Open MyTax Illinois: Where's My Refund?Official Illinois Department of Revenue site. Plainsums cannot see your refund.
- E-filed returns
- Up to 4 weeks
- Paper returns
- At least 8 weeks
- Phone
- 800-732-8866
When should my Illinois refund arrive?
Enter the day you filed. We add only the IDOR's own published time to it.
The IDOR counts from the date shown in each result below. Use that date if you know it.
Stated processing time: E-filed
Fri, December 4, 2026
4 weeks after filing. The department's stated window ends on the last date shown.
IDOR says: Refunds resulting from electronically filed returns can be expected around four weeks after filing.
This is an estimate for information only, not tax, payroll or legal advice. It only adds the IDOR's published time to your date; it does not know your return's status. Check the official tool for that.
What you need to check your refund
The IDOR's refund page does not say what the tool asks for. Have a copy of your Illinois return ready; most state tools ask for your Social Security number and the exact refund amount on the return.
How long a Illinois refund takes
| Return | Time | What the IDOR says |
|---|---|---|
| E-filedStated processing time | 4 weeks after filing | Refunds resulting from electronically filed returns can be expected around four weeks after filing. |
| PaperStated minimum wait | At least 8 weeks after filing | Refunds resulting from returns filed on paper may take more than eight weeks after filing. |
The tool covers the current year only. For a prior-year or amended refund, IDOR says to call 800-732-8866.
Why a Illinois refund can be delayed
The IDOR lists these causes:
- Errors in filing
- Excessive processing volume
- Additional security protocols
Illinois refund phone number
- 800-732-8866 — Individual income tax (or 217-782-3336). Monday to Friday, 8:00 a.m. to 5:00 p.m.
- 800-877-8078 — Illinois Comptroller (replacement refund checks)
Frequently asked questions
Sources
- IDOR: RefundsTool link; e-file refunds around four weeks after filing; paper may take more than eight weeks; delay reasons.
- IDOR: For tax assistance (IL-1040 instructions)Call 1 800 732-8866 or 217 782-3336, 8:00 a.m. to 5:00 p.m. Monday through Friday.
Checked November 6, 2026.
This is an estimate for information only, not tax, payroll or legal advice. Only the Illinois Department of Revenue can tell you the status of your refund.