Identity Theft & Fraud

Account on Your Credit Report Not Yours? Do This First

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Calvin Harvey II

October 15, 2026

7 min read17 views
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Bottom line: If you see an account on your credit report that isn't yours, first figure out whether it's a lender name you didn't recognize, a mixed file, or identity theft. If it could be identity theft, contact the company's fraud department, place a fraud alert and consider a credit freeze, and report it at IdentityTheft.gov. Then dispute the account with each credit bureau that shows it. This applies to anyone who finds an unfamiliar account on an Equifax, Experian, or TransUnion report.

Finding an account you don't recognize is stressful. In my 10+ years in the credit industry, I've learned that a calm, step-by-step approach beats panic. Here's the order I'd go in.

What should you do first when an account on your credit report isn't yours?

When an account on your credit report isn't yours, start by confirming it really isn't. Then protect your credit, report it, and dispute it. Here's the quick version:

  1. Check whether it's really unfamiliar. It may be a lender name you don't recognize (see below).

  2. Check all three reports. Get free reports from Equifax, Experian, and TransUnion at AnnualCreditReport.com.

  3. If it could be identity theft, act fast. Follow the FTC's steps below.

  4. Dispute the account with each bureau that shows it, and with the company that reported it.

Is an unfamiliar account always identity theft?

No. An unfamiliar account on your credit report can come from a few different places:

  • A lender name you don't recognize. The CFPB says an unfamiliar lender name might be the lender's parent company or a new company it joined. Check the fine print on your monthly bill or contact the lender (CFPB handout).

  • A sold or collected debt. If a lender sold a debt or hired a collector, the new company can be listed along with the original lender (CFPB handout).

  • A mixed file. This is when another person's information, often someone with the same or a similar name, gets mixed into your file. The CFPB lists it as a common identity error (CFPB).

  • Identity theft. Someone opened the account using your personal information without your permission (CFPB).

A mixed file and identity theft are both errors you have the right to dispute. Identity theft calls for a few extra steps.

What should you do if the account is identity theft?

If an account on your credit report came from identity theft, the FTC recommends three steps. Act fast, because it can help reduce the damage (FTC):

  1. Call the company where the fraud happened. Ask for the fraud department. Explain that someone stole your identity, and ask them to close or freeze the account. Change logins, passwords, and PINs.

  2. Place a fraud alert and get your credit reports. Contact one of the three bureaus to place a free one-year fraud alert. That bureau must tell the other two. If you haven't frozen your credit, the FTC says to do that too.

  3. Report it at IdentityTheft.gov. You'll get a free personal recovery plan with next steps.

What's the difference between a fraud alert and a credit freeze?

A fraud alert makes businesses check with you before opening new credit in your name. A credit freeze stops anyone from opening new credit in your name while it's in place. Both are free (FTC).

Credit freeze

Initial fraud alert

What it does

Nobody can open new credit in your name, including you, until you lift it

Businesses must try to verify it's you before opening new credit

Who can get one

Anyone, for any reason

Anyone who is, or suspects they may be, affected by identity theft

How long it lasts

Until you lift it

One year (you can renew it)

How to place it

Contact all three bureaus

Contact one bureau, which must tell the other two

Cost

Free

Free

Source: FTC, Credit Freezes and Fraud Alerts. The FTC also says a credit freeze doesn't affect your credit score. If you've filed an FTC identity theft report or a police report, you can place an extended fraud alert, which lasts seven years.

(Coming soon: Credit Freeze vs. Fraud Alert: Which One Do You Need?)

How do you dispute an account that isn't yours?

To dispute an account on your credit report that isn't yours, send a dispute to each credit bureau that shows it. You can also dispute with the company that reported it. Explain that the account isn't yours, and include copies of supporting documents (CFPB).

The CFPB's sample dispute letters include an option for identity theft. The furnisher letter suggests including a copy of your FTC identity theft report, which the sample letter calls an identity theft affidavit.

A credit bureau generally has 30 days to investigate a dispute. It can take up to 45 days if you dispute after getting your free annual credit report, or if you send more relevant information during the investigation (CFPB).

For the full process, see How to Dispute Credit Report Errors: Step by Step.

What is an identity theft block under the FCRA?

An identity theft block is a separate right for identity theft victims. Under FCRA section 605B, you can ask a credit bureau to block information on your report that came from identity theft. The bureau generally must block it within four business days of receiving all of the following (15 U.S.C. § 1681c-2):

  • Proof of your identity

  • A copy of an identity theft report

  • Identification of the information that came from identity theft

  • A statement that the information doesn't relate to any transaction you made

The law lets a bureau decline or undo a block in some situations, such as when the request was made in error, was based on a material misrepresentation, or you got goods, services, or money as a result of the blocked transaction. IdentityTheft.gov can help you create the identity theft report.

(Coming soon: What Is an Identity Theft Report, and How Does It Help Your Credit Report?)

What Dispute Nerds does and what you do

Dispute Nerds is AI-powered credit dispute software. Here's how the work splits:

Findings are free. Your credit report comes from our monitoring partner and is billed separately.

  • The AI analyzes your credit report and flags accounts and details that may be inaccurate, including accounts that may not be yours.

  • You review the findings and decide what, if anything, to dispute.

  • You sign and send your own disputes.

Dispute Nerds never files disputes for you. If you think you're a victim of identity theft, start with IdentityTheft.gov too.

FAQ

Is an account I don't recognize always identity theft?

No. It may be a lender's parent company, a debt that was sold or sent to a collector, or a mixed file. Check your statements and contact the lender before you assume fraud.

Should I freeze my credit or place a fraud alert?

The FTC says you can do both. A freeze stops new credit from being opened in your name until you lift it. A fraud alert makes businesses verify your identity first. Both are free.

Does a credit freeze hurt my credit score?

No. The FTC says a credit freeze doesn't affect your credit score.

Where do I report identity theft?

Report it to the FTC at IdentityTheft.gov. You'll get a free personal recovery plan.

How long does a credit bureau have to investigate my dispute?

Generally 30 days. It can take up to 45 days if you dispute after getting your free annual report or send more information during the investigation.

Can Dispute Nerds dispute the account for me?

No. The AI flags possible issues on your report. You review the findings, then sign and send your own disputes. Dispute Nerds never files disputes for you.


Sources

  • Federal Trade Commission, "How to recover from identity theft" (Sept. 27, 2024): https://consumer.ftc.gov/consumer-alerts/2024/09/how-recover-identity-theft

  • Federal Trade Commission, "Credit Freezes and Fraud Alerts": https://consumer.ftc.gov/articles/credit-freezes-and-fraud-alerts

  • IdentityTheft.gov (FTC): https://www.identitytheft.gov/

  • Consumer Financial Protection Bureau, "What are common credit report errors that I should look for on my credit report?": https://www.consumerfinance.gov/ask-cfpb/what-are-common-credit-report-errors-that-i-should-look-for-on-my-credit-report-en-313/

  • Consumer Financial Protection Bureau, "Understand your credit report" (handout, PDF): https://files.consumerfinance.gov/f/documents/cfpb_understand_your_credit_report_handout.pdf

  • Consumer Financial Protection Bureau, "How do I dispute an error on my credit report?": https://www.consumerfinance.gov/ask-cfpb/how-do-i-dispute-an-error-on-my-credit-report-en-314/

  • Consumer Financial Protection Bureau, "How long does it take to repair an error on a credit report?": https://www.consumerfinance.gov/ask-cfpb/how-long-does-it-take-to-repair-an-error-on-a-credit-report-en-1339/

  • Consumer Financial Protection Bureau, "Sample letters to dispute information on a credit report": https://www.consumerfinance.gov/consumer-tools/credit-reports-and-scores/sample-letters-dispute-credit-report-information/

  • Fair Credit Reporting Act §605B, 15 U.S.C. § 1681c-2 (Legal Information Institute, Cornell Law School): https://www.law.cornell.edu/uscode/text/15/1681c-2

  • AnnualCreditReport.com: https://www.annualcreditreport.com/index.action

Last updated: October 15, 2026

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