Answered October 2026

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.

Experian shows an older accountOlder history

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]

Experian shows only two-month-old accountsClarify discrepancy

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]

Read the full explanation

Watch out for

An ITIN is not an SSNYour does not prevent you from having an Experian credit file, but it is not interchangeable with a Social Security number. Do not put it into Experian’s SSN field to force online access; Experian provides a written-request route for people without an SSN. [1, 9]
The displayed score may not be the lending scoreIf you saw the score in Amex MyCredit Guide, it is an Experian-based . If it appeared on an application decision notice instead, do not assume the same model: Amex says its lending decisions may use another score version or another type of score. [4]
Your partner’s account can help or hurtAn authorized-user account is not a guaranteed credit boost. FICO says missed payments or high balances relative to the credit limit can negatively affect the authorized user’s score. [3]

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

The Amex score screen or decision notice
Your existing Equifax and TransUnion reports

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

Full name, including middle initial and any suffix
Date of birth and complete addresses for the past two years
Copy of government-issued ID displaying your current address
Copy of a current utility bill, bank statement, insurance statement or similar

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

Your partner’s Discover account details
Your legal name, date of birth and address
The reports showing the missing account

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

The affected report and its confirmation number, if available
A short explanation of the error and requested correction
Copies of supporting account or identity records

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.

Experian — credit reports without an SSN

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.

Read the full text

FICO — minimum scoring requirements

FICO’s ordinary minimum uses reported account age and recent reporting, with rare differences across score versions.

FICO — minimum scoring requirements

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.

Read the full text

FICO — authorized-user accounts

FICO can consider authorized-user accounts, including their positive and negative information.

FICO — authorized-user accounts

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.

Read the full text

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.

Amex MyCredit Guide FAQ

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.

Read the full text

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.

Discover — authorized-user reporting

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.

Read the full text

Experian — authorized-user reporting timing

An authorized-user account does not necessarily appear immediately after addition.

Experian — authorized-user reporting timing

When authorized-user accounts appear

It may take several weeks or months for it to appear on your credit report.

Read the full text

Discover — account support

Discover supplies a live-agent number and directs migrated accounts to Capital One’s signed-in service.

Discover — account support

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.

Read the full text

CFPB — free credit reports

The official service offers free weekly reports from each major bureau.

CFPB — free credit reports

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.

Read the full text

Experian — ITIN and written report requests

Experian provides a free written-request process without an SSN, with specific identity documents and a mailing address.

Experian — ITIN and written report requests

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

Read the full text

CFPB — credit-report disputes

You can dispute inaccurate reporting with the bureau and the company supplying the information, using supporting documents.

CFPB — credit-report disputes

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.

Read the full text

CFPB — dispute investigation deadlines

Bureau disputes generally take 30 days, sometimes 45, followed by notice within five business days.

CFPB — dispute investigation deadlines

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.

Read the full text

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.

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