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TransUnion Fax Number — Fax Credit Disputes and Reports

TransUnion accepts faxed dispute letters, identity theft affidavits, and credit freeze requests, though the fax number varies by the department handling your matter. Because a credit dispute often hinges on timing, having a dated confirmation that TransUnion received your paperwork can matter as much as the dispute itself. Call TransUnion to confirm the correct fax line before you send sensitive financial records.

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TransUnion Fax Number

Contact TransUnion for dispute fax number

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What You Can Fax to TransUnion

  • Credit report dispute letters
  • Identity theft affidavits
  • Fraud alert requests
  • Credit freeze/thaw requests
  • Supporting documentation for disputes
Tip: Each page should carry your full name, the last four digits of your Social Security number, your date of birth, and your current address so TransUnion can match the documents to your credit file. Many people send disputes by certified mail and fax both, which creates two independent records of submission. Hold onto the Send FAX Mail confirmation as evidence of the date your dispute went through.

Faxing to TransUnion — FAQ

TransUnion uses different fax numbers for disputes, fraud alerts, and freeze requests across its departments. Contact TransUnion directly to get the line tied to your specific request, since sending to the wrong department can delay handling of a time-sensitive dispute.

Yes. Dispute letters and supporting documentation can be faxed, and Send FAX Mail provides a delivery confirmation so you have proof the records arrived. That confirmation is useful given the regulatory clock that starts once a credit bureau receives a dispute.

Use an encrypted fax service and include only the information the bureau needs to verify your identity. A cover page that names TransUnion as the recipient and marks the transmission confidential keeps the contents from being mishandled in transit.

Sending the same dispute by certified mail alongside the fax gives you two separate records of when and how you submitted it. If a dispute is ever contested, having both a mail receipt and a fax confirmation strengthens your timeline.

The dispute team generally operates Monday through Friday, 8:00 AM to 5:00 PM Eastern. A fax received outside those hours waits until the next business day, when staff review and log incoming documents.

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