From the IRS:
I am not typically required to file a tax return. Can I still receive my payment?
Yes. The IRS will use the information on the Form SSA-1099 or Form RRB-1099 to generate Economic Impact Payments to recipients of benefits reflected in the Form SSA-1099 or Form RRB-1099 who are not required to file a tax return and did not file a return for 2018 or 2019. This includes senior citizens, Social Security recipients and railroad retirees who are not otherwise required to file a tax return.
Since the IRS would not have information regarding any dependents for these people, each person would receive $1,200 per person, without the additional amount for any dependents at this time.
Stimulus
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