who invented credit score

The modern credit score system was invented by Bill Fair and Earl Isaac , co‑founders of the analytics company that became FICO, with the widely used FICO Score first launched in 1989.

Quick Scoop

• The idea of a numerical “credit score” comes from work begun in 1956, when engineer Bill Fair and mathematician Earl Isaac founded Fair, Isaac and Company to build standardized credit‑scoring models for lenders.

• Their algorithms gradually spread in the 1960s and 1970s, replacing more subjective, reputation‑based lending decisions.

• The first broadly adopted modern FICO credit score model was introduced in 1989 in partnership with major credit bureaus, and that three‑digit style of score is what most people mean today by “credit score.”

So, in everyday terms, when people ask “who invented the credit score,” the answer points to Bill Fair and Earl Isaac, whose scoring system evolved into the FICO Score that now dominates consumer lending decisions.