In order to qualify for Social Security Disability Insurance (SSDI), your impairment must have lasted at least 12 months or is expected to last at least 12 months. If your condition meets this requirement, you may file a claim. There are three options for filing your initial application for benefits. They are: (1) apply in person at a Social Security office, (2) apply by phone and (3) apply online. To apply in person, you can go to your local Social Security office. If you do not know where the office is located you may call the Social Security Administration (SSA) at 800-772-1213 for a list of locations. To apply by telephone, call the SSA at 800-772-1213 and speak with a representative. To apply online, go to www.ssa.gov and click on the disability tab to start your application. The quickest and easiest way to apply for disability benefits is online! The application is lengthy; be prepared to provide your full name, social security number, contact number and mailing address along with details on your condition.