Long-term disability insurance coverage typically begins after you are unable to work for at least six months. It carries no termination date and, depending on the policy, can last for a specified number of years or until you turn 65. Some employers offer group short-term and long-term disability plans that usually have less expensive premiums than individual policies. Social Security offers long-term disability benefits if you can no longer perform your previous job duties or find comparable work because of your medical condition. Your disability must last or be expected to last for at least one year or to result in death. If you have disability insurance and become disabled, complete a claim form and gather any needed documentation from your doctor that will verify your disability.