People check a free credit score, then apply for a loan and discover the lender saw a different number. Nothing has gone wrong. There are simply many scores.
The two models
FICO, created by the Fair Isaac Corporation, is the older model and the one used in the large majority of U.S. lending decisions. Multiple versions are in active use simultaneously — mortgage lenders commonly use older versions than card issuers, which is a source of confusion in its own right.
VantageScore was developed jointly by the three credit bureaus. It is widely used in free credit monitoring services and for educational purposes, and it appears in some lending decisions.
How they differ
| FICO | VantageScore | |
|---|---|---|
| Range (current versions) | 300–850 | 300–850 |
| Minimum history needed | About six months plus a recently reported account | Can score thinner files |
| Used by lenders | The large majority of decisions | Less common in lending |
| Where you usually see it | Lender pulls, some issuer dashboards | Many free score services |
| Treatment of collections | Varies by version | Generally ignores paid collections |
The models also weight the same factors somewhat differently and handle edge cases — thin files, recent inquiries, small collections — in their own ways. On identical data they routinely produce numbers that differ by ten to forty points.
Why your score differs across sources
Four distinct reasons, and they compound:
- Different model. FICO and VantageScore are different formulas.
- Different version. FICO 8 and FICO 9 produce different numbers, as do VantageScore versions.
- Different bureau. Not every creditor reports to all three, so the underlying data differs.
- Different date. A score is calculated at the moment it is requested; a week's difference can change it.
Which one to track
If you are preparing for a specific application, find out which score that lender uses. Mortgage lenders commonly use particular older FICO versions; card issuers vary.
For general monitoring, any consistent source is fine. What matters is watching the direction over time on the same source, because the behaviors that improve one model improve the other. Pay on time, keep utilization low, do not open unnecessary accounts — that works everywhere.
Where to get scores for free
- Many credit card issuers and banks provide a free score, often FICO, in their apps.
- Free credit monitoring services typically provide VantageScore.
- Credit reports themselves — the underlying data, without a score — are available from all three bureaus through AnnualCreditReport.com, the federally authorized source.
- If you are denied credit, the adverse action notice must disclose the score used in that decision, if a score was used.
The report matters more than the score. A score is a summary of the report, and errors on the report are what you can actually act on.
