Illinois tax refunds typically take 30 to 60 days from the time the Department of Revenue receives your return

The Illinois Department of Revenue processes most individual income tax returns within this window, though the exact timing depends on whether you file electronically or by mail, whether your return is complete, and whether the department needs to verify information with you. Electronic filers generally see refunds faster than those who mail paper returns. If you file early in the tax season—January or February—you may wait closer to 60 days because the department processes returns in the order received. Later filers sometimes see refunds in 30 to 45 days because the volume decreases.

The clock starts when the Department of Revenue actually receives your return, not when you submit it. If you e-file through a tax software provider or a tax professional, the return reaches the department within a few days. If you mail a paper return, add 7 to 10 business days for postal delivery before processing begins. Once the department has your return in hand, the 30- to 60-day window begins.

Key Takeaways

  • Electronic returns are processed faster than mailed returns because they reach the Department of Revenue when ready and require no manual data entry.
  • The 30- to 60-day processing window starts when the Department of Revenue receives your return, not when you mail or submit it.
  • Incomplete returns, missing documentation, or mismatched information can add weeks or months to processing time.
  • You can check the status of your refund on the Illinois Department of Revenue website using your Social Security number and refund amount.
  • Direct deposit refunds arrive faster than checks, typically within 3 to 5 business days after the department approves your return.

Why processing time varies between filers

The Department of Revenue processes returns in batches, and the volume of returns in the system at any given moment affects how quickly yours moves through. During peak season—late January through mid-April—the department receives thousands of returns daily. A return filed in early February may sit in a queue for several weeks before processing begins, even though the department is working as fast as it can. A return filed in late May faces much shorter wait times because fewer people are filing.

The completeness of your return also matters. If you report income that doesn't match what employers or financial institutions reported to the state, the department flags your return for review. If you claim a credit or deduction that requires supporting documents and you didn't include them, processing stops until you provide them. A missing signature, an illegible entry, or a calculation error can all trigger a hold. The department will contact you by mail if they need more information, which adds another 2 to 3 weeks to the timeline while you respond and they verify what you sent.

Electronic filing versus mailing a paper return

Electronic returns reach the Department of Revenue within 24 to 48 hours of submission, and the data is already in digital form, so no manual entry is required. The department can begin processing when ready. Paper returns take 7 to 10 business days to arrive by mail, and then a department employee must manually enter the data into the system before processing can start. This alone adds 1 to 2 weeks to the timeline.

If you e-file and claim a refund, you also have the option to receive it by direct deposit into your bank account. Direct deposit refunds arrive 3 to 5 business days after the department approves your return. Paper checks take 7 to 14 business days to print and mail after approval. Choosing direct deposit can shorten the total time from filing to having money in your account by up to two weeks.

How to check the status of your Illinois refund

The Illinois Department of Revenue operates a refund status tool on its website. You will need your Social Security number and the amount of the refund you expect. The tool shows whether your return has been received, is being processed, has been approved, or has been sent out. It updates regularly but not in real time, so checking daily will not show you minute-by-minute progress. Check once a week if you are waiting for a refund.

If the status tool shows your return is still being processed after 60 days, contact the Department of Revenue by phone or through their website to ask whether your return is flagged for review. If information doesn't match, the department will have sent you a letter by mail explaining what they need. Check your mailbox for any correspondence from the department before calling, because the letter will tell you exactly what to do next.

What delays a refund after the 60-day window

Returns that require verification—because income reported on your return doesn't match what an employer or bank reported, or because you claimed a large credit—can take 90 days or longer. The department must contact the employer or financial institution to confirm the numbers, which can take several weeks. During this time, your return is not being processed; it is waiting for a response from a third party.

If you claimed the Earned Income Tax Credit (EITC) or the Child and Dependent Care Credit, federal law requires the IRS to hold your refund until mid-February, even if your state return is approved. This is a federal requirement, not an Illinois one, and the Department of Revenue cannot release your refund until the IRS clears it. If you filed in January and claimed these credits, expect your refund in mid-February at the earliest, regardless of how quickly Illinois processes your return.

Amended returns—returns filed to correct a mistake on an original return—take longer to process because they require manual review. The department must compare your original return to your amended return, verify the changes, and recalculate your refund. Amended returns typically take 8 to 12 weeks.

Direct deposit versus check refunds

Direct deposit is the fastest way to receive your refund. Once the Department of Revenue approves your return, it sends the refund electronically to your bank, which deposits it within 3 to 5 business days. The entire process—from filing to money in your account—can be as short as 35 to 40 days if you e-file early in the season and your return is straightforward.

A paper check takes longer. After the department approves your return, it must print the check, which can take 5 to 7 business days. The check is then mailed, which takes another 7 to 14 business days depending on where you live and how the postal service routes it. The total time from approval to cashing the check can be 3 to 4 weeks. If you lose the check or it is delayed in the mail, you must contact the Department of Revenue to request a replacement, which adds another 2 to 4 weeks.

What to do if your refund is delayed

If your refund has not arrived 75 days after you filed, check the refund status tool first. If the tool shows your return is still being processed, wait another week or two before contacting the department—some delays are normal. If the tool shows your return was approved but you have not received the refund, contact the Department of Revenue. If you chose direct deposit, ask whether the refund was sent and whether there was a problem with your bank account information. If you chose a check, ask whether the check has been mailed and request a replacement if it has been more than 30 days since approval.

Keep your filing confirmation or receipt from e-filing, your Social Security number, and the refund amount handy when you contact the department. These details help the department locate your return quickly. The Department of Revenue can be reached by phone during business hours, and you can also submit questions through their website.

Frequently Asked Questions

Can I get my refund faster if I pay a tax preparer to file for me?

No. The processing time at the Department of Revenue is the same whether you file yourself or use a tax preparer. A preparer can file electronically, which is faster than mailing, but the department still takes 30 to 60 days to process. The only way to speed up the process is to file electronically and choose direct deposit.

What if my refund shows as approved but I haven't received it after 30 days?

If you chose direct deposit, contact your bank to confirm they received the deposit and that your account information was correct. If you chose a check, contact the Department of Revenue to request a replacement. Checks can be lost or delayed in the mail, and the department will reissue one.

Do I have to wait for my Illinois refund before I can file my federal return?

No. Your Illinois and federal returns are processed separately by different agencies. You can file your federal return at any time, and the timing of your Illinois refund does not affect it. However, if you claimed federal credits like the EITC, the IRS may hold your federal refund until mid-February regardless of when you filed.

Why does the Department of Revenue website say my return is still being processed after 60 days?

Your return may be flagged for verification because information doesn't match what employers or banks reported, or because you claimed a credit that requires review. The department will have mailed you a letter explaining what they need. Check your mailbox and follow the instructions in the letter. Once you respond, processing resumes.

Is there a way to get my refund before the normal processing time?

No. The Department of Revenue processes all returns in the order received, and there is no expedited option. Filing early and electronically gets you to the front of the queue faster, but the department still needs 30 to 60 days to process your return once it is received.