Does the Illinois Department of Revenue Call You? Red Flags and How to Verify

Does the Illinois Department of Revenue call you? Almost never without warning. IDOR handles nearly all contact through U.S. mail and its secure MyTax Illinois portal, so an out-of-the-blue phone call claiming you owe Illinois tax, demanding immediate payment, or asking for your Social Security or bank details is a strong sign of a scam.¹

IDOR also does not use text messages, email, or social media to request sensitive information. A text saying you owe Illinois taxes or an email with a link to “verify your account” is fraudulent no matter how official it looks.¹

When a Call From IDOR Could Actually Be Real

There are narrow situations where an IDOR employee may genuinely call you, and they share one feature: you already received written notices about the issue first. A collections officer might phone to follow up on a payment plan that is already in place. An auditor might call to clarify a specific line on a return you know is under review.

In every legitimate case, the caller will already know account-specific details, such as a Letter ID number from a notice you received or the exact tax period in question.¹ A real IDOR employee will not call to demand payment on a debt you have never been told about in writing.

One related situation: if IDOR has been unable to reach you about an unpaid balance, it may refer your account to an authorized private collection agency. If a collector contacts you about an Illinois tax debt, you can confirm the referral by logging into MyTax Illinois or by calling IDOR directly before paying anything or sharing information.²

Red Flags That a Call Is a Scam

Scam callers rely on urgency and fear to short-circuit your judgment. Watch for these signs:

No prior letter. If you have never received a mailed notice from IDOR about the supposed debt, the call is almost certainly fake.
Demands for immediate payment. A real caller does not insist you pay right now to avoid arrest, deportation, or a license being pulled. IDOR gives you written notice and time to respond before any enforcement step.
Unusual payment methods. Requests for wire transfers, prepaid debit cards, retail gift cards, or cryptocurrency are an unmistakable sign of fraud. IDOR accepts bank transfers through MyTax Illinois, credit card payments, and checks or money orders mailed to the department.³
Threats of arrest at your door. Tax collection is a civil process. Police do not show up because you missed a tax payment.
Phone requests for full card or bank numbers. IDOR employees do not ask for your full credit card number on an unsolicited call.

Caller ID is not proof of anything. Scammers routinely spoof IDOR’s real phone number or a Springfield area code so the display looks official. The only reliable confirmation is to hang up and call the department yourself.

How to Verify a Caller Before You Share Anything

If someone calls claiming to be from IDOR, do not give out personal or financial information during that call. Instead:

Ask for the caller’s full name, employee ID number, and a callback extension.
Hang up, no matter what the caller says to try to keep you on the line.
Call IDOR directly at 1-800-732-8866 or 217-782-3336, Monday through Friday, 8 a.m. to 5 p.m., and ask whether anyone from the department tried to reach you.⁴
Log into MyTax Illinois and check the Alerts tab. Any real issue, whether a balance due, an identity verification request, or a return correction, will appear there.

This takes a few minutes and removes any risk of handing information to a criminal.

What a Real IDOR Debt Looks Like

Knowing how the actual process unfolds makes a panicked phone call easier to dismiss. If IDOR determines you owe more tax, it mails a Notice of Deficiency. You then have 60 days from the date on that notice to file a formal protest, either through IDOR’s internal review or with the Illinois Independent Tax Tribunal (150 days if you are outside the United States). Only after that window closes does the amount become an assessed balance.⁵

Before IDOR can seize property, levy wages, or take other assets, it must give you written notice of the amount owed at least 10 days in advance.² Every legitimate IDOR notice also explains why you received it, what you can do about it, and a phone number to call for help.⁶ Real tax collection is slow, documented, and gives you time. A single phone call demanding payment within the hour does not fit that process.

What to Do If You Already Gave the Caller Information

If you shared your Social Security number, banking details, or other sensitive data before realizing the call was fake, move quickly.

Report the Identity Theft to IDOR

Send IDOR a copy of your driver’s license, copies of any federal and Illinois tax returns for the affected period, and a completed IRS Form 14039 (Identity Theft Affidavit). Email the documents to Rev.IdentityTheftAffidavit@Illinois.gov or mail them to the IDOR ID Theft/Fraud Unit at PO Box 19049, Springfield, IL 62794-9049.⁷ For questions, call IDOR at 1-800-732-8866.⁴

File Form 14039 With the IRS

Submit the same form to the IRS online at irs.gov, by fax to 855-807-5720 with a cover sheet marked “Confidential,” or by mail to the Department of the Treasury, Internal Revenue Service, Fresno, CA 93888-0025. This flags your federal account so a thief cannot file a fraudulent return in your name.⁸

Place a Fraud Alert on Your Credit

Contact any one of the three major credit bureaus (Equifax, Experian, or TransUnion) and request an initial fraud alert. The bureau you call must notify the other two. The alert is free, lasts one year, and requires lenders to verify your identity before opening new accounts. If you have already been victimized, you can request an extended seven-year alert after filing an identity theft report at IdentityTheft.gov or with police.⁹

Where to Report the Scam Call

Even if you did not lose money or share information, reporting the call helps authorities track patterns and warn others.

Illinois Attorney General. File a consumer fraud complaint with the Consumer Protection Division.¹⁰
TIGTA. If the caller claimed to be from the IRS instead of IDOR, report it to the Treasury Inspector General for Tax Administration at 800-366-4484 or through the IRS Impersonation Scam Reporting form.¹¹
Federal Trade Commission. Report at IdentityTheft.gov, which can also build you a personalized recovery plan if your data was taken.¹²

Impersonating a government employee is a crime in Illinois. The basic offense of false personation is a Class A misdemeanor, with heavier penalties when the impersonation is tied to identity theft or another felony.¹³ Scammers who take money or financial information during these calls can face separate theft and fraud charges on top of that.

1
Illinois Department of Revenue. IDOR Alert: Beware of New Text Message Scam Targeting Taxpayers
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Illinois Department of Revenue. Collection Process
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Illinois Department of Revenue. Payment Options for Individuals
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Illinois Department of Revenue. Contact Us
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Illinois General Assembly. Illinois Code 35 ILCS 5 – Illinois Income Tax Act, Sections 904 and 908
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Illinois Department of Revenue. What Are My Rights
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Illinois Department of Revenue. Report Identity Theft
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Internal Revenue Service. Identity Theft Affidavit (Form 14039)
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Federal Trade Commission. Credit Freezes and Fraud Alerts
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Office of the Illinois Attorney General. Consumer Fraud Complaint
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Internal Revenue Service. Taxpayers Beware: Tax Season Is Prime Time for Phone Scams
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Federal Trade Commission. IdentityTheft.gov
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Illinois General Assembly. Illinois Code 720 ILCS 5/17-2 – False Personation, Solicitation