The process is not simple, and each of the three major companies in the United States that reports credit score and history uses a slightly different method, so your credit score will probably vary slightly from one report to the next. Overall, use common sense. Therefore, it is important to build and maintain good credit, you may also want to know how, exactly, a credit score is calculated. By knowing how your credit score is length of credit history. Even if you repay these past debts, they will still show up on you credit history as bills that were late. However, there are some factors you can take into consideration if you want to roughly estimate your