You can have an Experian FICO score with an ITIN, and an older Discover authorized-user account could explain why you already have one after only two months. [1–3]
“How did Amex obtain a FICO score for me from Experian when my credit history is only 2 months old and I use an ITIN? I am an authorized user on my partner's Discover card, but it isn't showing on my Equifax or TransUnion reports.”
Summary
The missing Equifax and TransUnion entries do not contradict an Experian-based score: the bureaus can hold different information. The key is to identify what account history Experian actually has, rather than assume your score is wrong. [4]
The deciding fact is the age of the accounts in Experian’s file—not just the two months since you personally started using credit.
If Experian shows Discover—or another account—as at least six months old, with an account reported within the past six months, that is a plausible explanation for your early score. FICO’s published minimum concerns accounts on the credit report, and authorized-user accounts can affect FICO scores. The important distinction is the account age Experian reports versus the date you became an authorized user; we cannot confirm that Discover supplied the qualifying history without your Experian report. [2, 3]
Two months alone does not meet FICO’s ordinary published minimum. In this case, compare the score’s model and calculation date with the underlying report, and look for incorrect account or identity information rather than assuming the score is impossible. FICO notes rare differences in eligibility across score versions, and Amex cautions that lending scores can differ from its displayed score. [2, 4]
An Experian-based score can exist even when Equifax and TransUnion show different information. [4]
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Watch out for
Next steps
These steps identify the score’s underlying history and narrow down why Discover is missing elsewhere.
Start here
Compare Amex’s score details with your Experian report
Record the score model, bureau and calculation date shown by Amex. If you already have MyCredit Guide access, open its detailed Experian report through https://www.americanexpress.com/us/credit-cards/features-benefits/free-credit-score/faq.html; the service is free. Compare account opening dates and recent reporting, especially for Discover. Free weekly bureau reports are also available at https://www.annualcreditreport.com/, but Experian says that online route requires an SSN; use the written route below if needed. [4, 8, 9]
Requirements
If you have no SSN
Request Experian’s report by mail if you cannot access it online
Write that you are requesting your free Experian credit report without an SSN. Include the information and document copies listed here, and mail them to Experian, P.O. Box 9701, Allen, TX 75013. Experian expressly provides this no-SSN process; you do not need to substitute your ITIN for an SSN. [9]
Requirements
After comparing the reports
Have your partner verify Discover’s reporting
Have your partner call Discover at 1-800-347-2683. Ask the agent to verify your authorized-user details and whether and when your account history was sent to Experian, Equifax and TransUnion; explain that you use an ITIN. Discover’s stated policy is to report authorized-user history to all three bureaus. Experian says appearance can take several weeks or months, but that does not establish the cause in your case. If the account has moved to Capital One, use the signed-in account at https://www.capitalone.com/ or its mobile app, as Discover directs. [5–7]
Requirements
If the comparison identifies a problem
Dispute specific errors or confirmed omissions
If Discover confirms it supplied the account but the bureau report omits it, or personal/account details are wrong, submit the specific issue to Equifax at https://www.equifax.com/personal/credit-report-services/credit-dispute/ or TransUnion at https://dispute.transunion.com. Give Discover the same evidence if its supplied information needs correction. CFPB says to explain the problem in writing and include supporting copies. Bureau investigations generally take 30 days; they can take 45 days after a free annual report or when relevant additional information extends the investigation. Results must be notified within five business days after completion. These are investigation deadlines, not a guarantee that an account will be added. [10, 11]
Requirements
Legal sources
This explanation comes from FICO’s scoring requirements, Amex’s score disclosures, Discover’s reporting policy, Experian’s identity guidance, and CFPB reporting and dispute guidance.
Experian — credit reports without an SSN
Having no SSN does not prevent Experian from maintaining a credit report and score.
Can You Establish Credit Without a Social Security Number?
While it's possible to have a credit report and credit score even if you don't have an SSN, providing your full identification information is key to ensuring that the report you receive is accurate and complete.
FICO — minimum scoring requirements
FICO’s ordinary minimum uses reported account age and recent reporting, with rare differences across score versions.
Minimum FICO Score requirements
In order to receive a valid FICO Score, the credit report must have: At least one account opened for six months or more, and At least one account that has been reported to the credit bureau within the past six months, and No indication of deceased on the credit report (Please note, if you share an account with another person this may affect you if the other account holder is reported deceased). The minimum scoring criteria may be satisfied by a single account or by multiple accounts on a credit file. In certain rare cases, whether a given credit report qualifies for a FICO Score may vary across different FICO Score versions.
FICO — authorized-user accounts
FICO can consider authorized-user accounts, including their positive and negative information.
How do authorized user accounts impact the FICO Score?
Authorized user accounts can appear on your credit report and impact your FICO® Score. This means that both positive and negative information can impact the authorized user's score. This can be beneficial if the account is managed well, as it can help build a positive credit history. However, if the primary account holder misses payments or has high utilization, it could negatively impact the authorized user's FICO® Score.
Amex MyCredit Guide FAQ
Amex identifies its monitoring score as Experian FICO Score 8, distinguishes it from lending scores, and explains that bureau information can differ.
MyCredit Guide and FICO Score FAQs
Credit score calculated based on the FICO ® Score 8 model and is provided for educational purposes. American Express and other lenders may use a different FICO ® Score version than FICO ® Score 8, or another type of credit score altogether, and other information to make credit decisions. MyCredit Guide provides your FICO ® Score based on Experian ® credit report data. The score can vary depending on the credit bureau that calculated the score since each credit bureau may have different information about you.
Discover — authorized-user reporting
Discover’s stated policy is to report account history for the primary holder and authorized user to all three major bureaus.
Authorized-user reporting disclosure
Discover, a division of Capital One NA, reports the account credit history to the three major credit bureaus as to you and the Authorized User.
Experian — authorized-user reporting timing
An authorized-user account does not necessarily appear immediately after addition.
When authorized-user accounts appear
It may take several weeks or months for it to appear on your credit report.
Discover — account support
Discover supplies a live-agent number and directs migrated accounts to Capital One’s signed-in service.
Account assistance
For questions related to an account that has moved to Capital One, login to [capitalone.com](https://www.capitalone.com/) or the Capital One mobile app. You can reach a live agent by calling 1-800-347-2683.
CFPB — free credit reports
The official service offers free weekly reports from each major bureau.
Free credit reports
You can get a free copy of your credit report from each of the three major consumer reporting companies (Equifax, Experian and TransUnion) once a week at AnnualCreditReport.com.
Experian — ITIN and written report requests
Experian provides a free written-request process without an SSN, with specific identity documents and a mailing address.
Can I Request a Credit Report With an Individual Taxpayer Identification Number (ITIN)?
An Individual Taxpayer Identification Number (ITIN) is issued to an individual for tax purposes. These numbers, if used, would be recognized as an invalid Social Security number on your credit report. If you do not have an SSN, you can submit your request for a free credit report in writing. Please include one copy of a government-issued identification card, such as a driver's license, state ID card or similar displaying your current address, and one copy of a current utility bill, bank statement, insurance statement or similar. Please also include the following identification information: Your full name including middle initial (and generation - Jr., II, III) Date of birth Complete addresses for the past two years Send your request to: Experian P.O. Box 9701 Allen, TX 75013
CFPB — credit-report disputes
You can dispute inaccurate reporting with the bureau and the company supplying the information, using supporting documents.
How to dispute an error on your credit report
You have the right to dispute errors on your credit report. Fixing an error generally means contacting both the credit reporting company and the company that provided the information. You should explain in writing what you think is wrong, why, and include copies of documents that support your dispute.
CFPB — dispute investigation deadlines
Bureau disputes generally take 30 days, sometimes 45, followed by notice within five business days.
Investigation and notification deadlines
If you dispute an error on your credit report, a credit reporting company generally must investigate the dispute within 30 days of receiving it. They have five business days after completing an investigation to notify you of the results. There are some cases, however, in which the company may take up to 45 days to complete the investigation: If you file a dispute after receiving your free annual credit report, they have 45 days to investigate. If you submit additional information relevant to your dispute during the 30-day investigation period, they can extend the investigation period for 15 additional days.
These are the official rules and provider policies as published on the cited dates; rules and policies can change.
This is general information about official processes, not legal advice, and SettleKit is not a law firm.

