Is This IRS Letter Real? How to Verify It
The IRS says it normally contacts you first by U.S. mail. To check a letter, search its notice code on IRS.gov, compare it with your IRS Online Account, and call the IRS at a number from IRS.gov, not one from a suspicious letter. Pay only the United States Treasury, through IRS.gov/payments or as the IRS describes.
A letter saying you owe the IRS money is stressful, and one you're not sure is real is worse. Scammers copy IRS logos and language, so double-checking is sensible. The verification steps below come from IRS.gov pages, linked in the sources. Where we add a practical tip of our own, we label it.
How does the IRS normally contact people?
The IRS says it normally contacts you the first time by mail delivered by the U.S. Postal Service. It also says:
- Email: it emails only when you opt in, from addresses ending in "irs.gov" (news bulletins come from [email protected]).
- Text: it texts only when you opt in.
- Phone: it may call about account matters. Automated messages don't share specific details. They direct you to IRS.gov to manage your account.
- Social media: "A social media direct message is never from us."
- In person: visits are uncommon and are generally preceded by a letter.
So a paper letter is the normal starting point, which is why you check the letter itself.
How do I check whether an IRS letter is real?
Follow these steps, in order.
- Find the code in the right corner. The IRS says the CP or LTR number is printed in the right corner of the letter.
- Search the code on IRS.gov. The IRS runs an Understanding your IRS notice or letter page with a notice search. Our tip: type the address yourself rather than following a link or QR code in the letter. You can also look up common codes in our IRS Notice Decoder. It covers 40 codes, and each has its own page, such as CP2000 or CP14.
- Compare it with your IRS Online Account. Sign in at IRS.gov (again, type the address). The online account shows your balance, payment history and digital copies of some notices. If a letter says you owe $4,000 and your account shows no balance, that's a red flag.
- Call the IRS at a number from IRS.gov if anything looks off. The IRS says that if the letter doesn't appear in its search, or looks suspicious, call 800-829-1040. Our tip: don't rely only on a phone number printed in a letter you doubt.
- Check who you're told to pay. The IRS says payments go to "United States Treasury," by check, money order or certified funds, or through IRS.gov/payments. Our tip: treat a letter asking you to pay anyone else as a warning sign.
What are the warning signs of a fake IRS letter or call?
The IRS says a contact is not from the IRS if it:
- is unexpected,
- rushes you,
- threatens you,
- asks for personal or financial information, or
- demands payment now.
The IRS scam page adds that impersonators may threaten arrest or deportation, or won't let you question or appeal the amount you owe. Real IRS notices do the opposite: they explain your options to pay, disagree or appeal.
Here's a quick comparison.
| Real IRS letter (per IRS guidance) | Common scam signs |
|---|---|
| Arrives by U.S. mail as the normal first contact | First contact by text, email or social media DM you didn't opt into |
| Has a notice or letter code you can find on IRS.gov | Code doesn't appear in the IRS notice search |
| Explains how to disagree or appeal | Says you can't question or appeal the amount |
| Payment to "United States Treasury" or via IRS.gov/payments | Payment to a person, a company or an unusual method |
| Gives a response date and your options | Rushes you, threatens arrest or deportation, demands payment now |
| Matches what you see in your IRS Online Account | Balance or tax year doesn't match your account |
What if the letter is from a private collection agency?
This can be real. The IRS uses private collection agencies for some overdue accounts. The IRS says you'll get two letters first:
- IRS Notice CP40 from the IRS, telling you your account was assigned to a private collection agency.
- The agency's own first letter, explaining how to resolve the balance.
Both letters include a taxpayer authentication number. The IRS says you'll exchange portions of that number with the agency to confirm each other's identity. The IRS's private debt collection page lists the agencies currently used. The IRS says they must be courteous and must not threaten you.
Our tip: if an agency contacts you and you never got a CP40, check with the IRS before you engage. (CP40 isn't one of the 40 codes in our decoder, so use the IRS search.)
What if someone from the IRS shows up in person?
The IRS says in-person visits are uncommon and usually follow a letter. Revenue agents (audits) usually contact you by mail first. Revenue officers (collections) mail a letter or call to schedule. Criminal investigation special agents may visit or call unannounced.
The IRS says its employees carry two forms of official credentials: an IRS-issued pocket commission and an HSPD-12 card, with a serial number and photo. Our tip: it's reasonable to ask to see both. For special agents, the IRS points to employee-verification.irs.gov.
How do I report a fake IRS letter, email or call?
The IRS reporting page says:
- Emails: forward to [email protected] with the subject "IRS" or "Treasury" (forwarding as an attachment keeps more detail).
- Texts: send the details to [email protected] with the subject "Text," and forward the text to 7726 (SPAM).
- Phone calls: note the number, hang up, and report it to the TIGTA hotline at 800-366-4484.
- Letters: search the notice on IRS.gov first. If you suspect a scam, report it to the U.S. Postal Service, the Federal Trade Commission or your state attorney general's consumer protection office.
- Social media: report it to the platform and send the full URL to [email protected] with the subject "Social media."
If you think a return was filed in your name, a real Letter 5071C or Letter 4883C asks you to verify your identity. For 5071C, the IRS's online verification service is at irs.gov/verifyreturn. Our tip: type that address yourself rather than using a link from an email or text.
What should I do once I know the letter is real?
Take a breath. Most real IRS letters are routine and fixable. Read the whole thing, write down the response date and decide whether you agree. Our pillar guide, Got a Letter From the IRS?, walks through each step. If it's a balance-due letter, IRS Collection Notices Explained shows where it fits in the sequence.
If you'd like a second pair of eyes, RAHA Financials offers an IRS Notice Response Plan for a fixed fee, quoted before any work starts. We'll review the notice with you and write a plan. RAHA Financials is an independent firm, not part of the IRS. Book a free consultation or see our tax filing services.
Frequently asked questions
Does the IRS ever send emails or texts?
Only if you opt in, according to the IRS. Its emails come from addresses ending in "irs.gov" (news bulletins from [email protected]). A social media direct message is never from the IRS.
Can I trust the phone number printed on the letter?
On a genuine notice, the number is the right one to use. If you have any doubt about the letter itself, the IRS says to call 800-829-1040, a number published on IRS.gov, and confirm first.
Who should I make my payment out to?
The IRS says to make payments payable to "United States Treasury," or pay through IRS.gov/payments. Be wary of any request to pay a different name.
A debt collector says they're working for the IRS. Is that real?
It can be. The IRS assigns some overdue accounts to private collection agencies, but you should first receive IRS Notice CP40 and then a letter from the agency. Both include a taxpayer authentication number for mutual identity checks.
Is the RAHA IRS Notice Decoder an IRS service?
No. RAHA Financials is an independent accounting firm, not affiliated with the IRS. The decoder explains codes using IRS.gov information and runs in your browser. It never asks for your Social Security number.
Sources
- IRS: How to know it's the IRS
- IRS: Understanding your IRS notice or letter
- IRS: Recognize tax scams and fraud
- IRS: Report fake IRS, Treasury or tax-related emails and messages
- IRS: Private debt collection
- IRS: Online account for individuals
- IRS: Verify your return
This guide provides general information for educational purposes and is not tax, legal or accounting advice. Consult a qualified professional before acting.
