A: The SSA will determine, according to their rules, whether or not you are disabled. When you are found disabled by the SSA you will be eligible for disability benefits. Generally it takes 1 to 3 months for your 1st check to arrive if you are approved. At Disability Help Group we stress the importance of building a strong medical file which is why we provide our clients with special forms for their doctors to complete. These forms can increase your changes of winning your case.