What is an “onset” date?

Your onset date is defined as the first day you are unable to work because of your disability. The onset date may or may not be the same as the date you were diagnosed. Applicants typically use the date they last worked as the date of onset. However, depending on the circumstances and the medical support the onset date could be after the date last worked.

For more information, see blog posting: The Importance of the Disability Onset Date