The process of filing for social security benefits involves filling out several forms. One of the first forms, and the most important form, is your application for benefits. But as you move along in the process you will fill out more forms. One of the forms will be a work history form. When you fill out this form, it is helpful if you can remember the places and years that you worked. Social Security will be asking you about the jobs you had in the last 15 years. This can be difficult because most people will switch jobs throughout their lifetime. If you have a resume you can attach that to your work history form, but still fill out the form. That is helpful because it describes the job duties as well as the years that you did the job. Not everyone has a resume, so sometimes it could be helpful to go back through your taxes to remember where you worked and how much you earned.