Q. How do I get SSI for depression? If you’re bold enough to chase SSI, a diagnosis of depression is necessary. Include that and your medical records. Show that your condition has kept you from working for a year or more. Q. Is major depression classified as a lawful disability? Major depression may be a disability under the ADA. It must greatly restrict daily activities. https://goodnesspsychiatryllc.com/major-depressive-disorder-a-disability/