Back Taxes Scam Call: The IRS Never Calls First

You receive a voicemail in which a calm voice from the "Tax Resolution Oversight Department" says your file has been flagged because you have an unpaid balance, and that this may be their only attempt to reach you.

That call is a scam. The actual IRS always initiates contact with snail mail. No letter means no legitimate call, however convincing it sounded.

What a back taxes scam call actually sounds like

In January 2026, the FTC published an alert about a wave of reports involving back taxes scam calls. Callers use official-sounding but entirely fake agency names, offering to connect you with a "tax resolution officer" who can run a "red flag check" on your credit and enroll you in an "IRS liability reduction program."

However, those programs don’t exist, and neither do the agencies.

The scam’s goal is to get your Social Security number or an illegal upfront fee for tax debt relief that never arrives.

Common tells in a back taxes scam call

• An unexpected call about a tax debt you've never received mail about
• A company name that sounds governmental but isn't on IRS.gov
• Pressure framed as a closing window 
• A request for your SSN, bank details, or card number
• An offer to settle for before anyone has looked at your situation
• Payment demanded by gift card, wire transfer, payment app, or crypto
• A callback number the caller gives you instead of one you looked up yourself

Government impersonators cost Americans about $920 million in reported losses in 2025, up from $789 million the year before, according to 2026 FTC data.

Fake agency names used in tax scam calls

The caller will give you a name that sounds like a federal office. However, real IRS communications come from the Internal Revenue Service, not any other name.

The FTC's 2024 Impersonation Rule has produced a dozen enforcement actions and over $70 million in consumer redress, including a June 2026 settlement with American Tax Service, a Nevada operation the FTC said impersonated the IRS.

Why you're getting these calls

Almost nobody receiving these calls owes back taxes. These are volume operations dialing from purchased lead lists. The caller has no idea what your tax situation is.

Answering marks your number as live and moves it to a more active list, which is why one call becomes many. Our guide to why unknown numbers keep calling covers how those lists get traded.

Does the IRS call you about back taxes?

Yes, but never as the first point of contact.

The IRS's first contact about an unpaid balance always comes by mail. Revenue officers and authorized collection agencies do call, but only after written notice.

The IRS will also never:

• Demand immediate payment over the phone
• Insist on gift cards, prepaid debit, or wire transfer
• Ask for a card number by phone
• Threaten arrest, deportation, or license revocation
• Deny you the chance to question or appeal what you owe

That's most of what a scam caller does. It’s the same playbook as warrant scam calls and Medicare fraud calls. They borrow a real institution's authority, invent urgency, and push toward an irreversible payment.

The one case where a back taxes call can be real

Federal law requires the IRS to assign certain overdue, inactive accounts to private collection agencies. The only three that are authorized are CBE Group Inc., Coast Professional Inc., and ConServe. They do legitimately call taxpayers. When they do, it’s following a sequence that scammers can’t replicate:

1. The IRS mails you Notice CP40 saying your account was assigned to a collection agency.
2. That agency mails you its own initial contact letter.
3. Both letters contain a taxpayer authentication number. When the agency calls, you each exchange portions of it to confirm identity in both directions.

If you didn’t get a CP40 in your mailbox means, the collection call is not legitimate. You can confirm your status in minutes at IRS.gov.

What to do when the ‘IRS’ calls you

1. Hang up. Don't confirm your name, address, or whether you've filed. 
2. Don't call back. Look up the real number yourself. The IRS's main individual line is 800-829-1040.
3. Check your mail, not your voicemail. If you have no letter, the call is fake.
4. Look up the number. Caller ID proves nothing, since spoofing is trivial and these operations routinely display real IRS numbers. A reverse phone lookup may surface line type and general location, which often contradicts what the caller told you.
5. Block and report. Block the number and turn on carrier filtering, which is covered in our guide to stopping spam calls. Never press a key to be removed from a list, since that confirms a live line.

Got a call from a number you don't recognize? Run it through ClarityCheck's reverse phone lookup. It searches publicly available sources and may reveal names, general location, line type, and public web mentions associated with the number. Results vary by number and available data.

Where to report a back taxes scam call

• TIGTA, the office handling IRS impersonation specifically. Use the scam reporting form or call 800-366-4484.
• The IRS, by emailing the caller ID and callback number to [email protected] with "IRS Phone Scam" in the subject.
• The FTC, at ReportFraud.ftc.gov.

The enforcement actions above were built on these reports, and so were the agency names in the table.

If you're worried about a parent

Older adults are targeted heavily in back taxes scam calls. In the American Tax Service case, the FTC presented court evidence that the operation specifically targeted older consumers for upsells, sometimes tens of thousands of dollars at a time.

Make sure any parent (or older relative or friend) knows the IRS starts with mail, so they should hang up on any call claiming otherwise. Then make yourself the second opinion. Scammers depends on keeping someone isolated on the line, and one call to family ends most of these before money moves. For more, see our breakdown of FBI-flagged phone scams.