Credit score repair begins with your credit report. If you haven't already, request a free copy of your credit report and check it for errors. Your credit report contains the data used to calculate your score and it may contain errors. In particular, check to make sure that there are no late payments incorrectly listed for any of your accounts and that the amounts owed for each of your open accounts is correct. If you find errors on any of your reports, dispute them with the credit bureau and reporting agency.