Hopefully you kept copies of your returns to support your income claimes with the SSA since the IRS only keeps them for 7 years. The SSA used to send you an annual report in the mail so you would check it often and make any corrections needed timely. So if the years you need fixed are too old you may not be able to correct them now. Of course, the SSA averages the highest 30 years of wages for your benefit calculation so if you work from 18 to 68 you have 50 years for them to choose from for the average and those zero years will be dropped.
