The Social Security Administration has provided information on how stimulus payments will come to seniors.  According to SSA’s website:


This act provides for the one-time payment of $250 to individuals who get Supplemental Security Income (SSI) or Social Security benefits. We expect everyone who is entitled to a payment to receive it by late May 2009. No action is required on your part.  


You can also bookmark the SSA stimulus page for further updates on stimulus delivery details or sign up for email alerts.