There are many people who have been wanting to understand what creates a credit score, but they do not really know where to begin. There is not one general formula that is used to compute your credit score. If you are wondering whether everyone uses the FICO scoring model, the three major credit bureaus use their version of it, with TransUnion using the EMPIRICA score, Experian using the Experian/Fair Isaac Risk Model, and Equifax using Equifax.