There is no one “true” credit score. Lenders and other companies use many different kinds. FICO is the leading credit scoring company and the FICO 8 is the most commonly used score, but many companies use older versions or ones modified for their specific industry (such as the FICO Auto Score 5, for example). Plus, your FICO 8 from Experian may be different from your FICO 8 from TransUnion or Equifax because the scores are based on the information in your credit bureau files and the bureaus are separate, competing businesses that don’t always have the same information.
Then there’s the VantageScore, a rival to the FICO, which is used by some lenders and by many sites that offer people their credit scores for free. The VantageScore formula is different from the FICO formula, so your numbers could be different as well.
All these credit scores, however, are created solely using the information in your credit reports. Your income, gender, address, political opinions, computer operating system and online comments are not included in credit score calculations.
Some people are understandably confused about that. Various start-ups and researchers have suggested that non-credit information — such as information gleaned from someone’s social media postings or online surveys — could replace credit information in loan decisions. But the U.S. has fair credit reporting laws that probably would make such alternatives unworkable. (It would be nice if start-ups checked to see what regulations apply to their industry before sending out press releases, but that doesn’t always happen.)
