According to the IRS:
"You receive Social Security, Railroad Retirement, or SSDI benefits. The IRS will automatically send you an Economic Impact Payment."
**Mark the post that answers your question by clicking on "Mark as Best Answer"
If you receive SSI---and do not get a SSA1099---you can use this portal on the IRS site:
IRS PORTAL FOR NON-FILERS
Confusion results when people refer to Social Security benefits as "SSI" because they are not the same thing and are not paid in the same way--especially for the stimulus money.
WHAT IS THE DIFFERENCE BETWEEN SOCIAL SECURITY BENEFITS AND SSI?