The Free File Fillable Forms product, "Non-Filers: Enter Payment Info" provides a means for those individuals that may need to provide information to the IRS to receive an economic impact payment if you haven’t filed an individual income tax return for 2018 or 2019. Quoting from Free File Fillable Forms:
If you receive veterans disability compensation, a pension, or survivor benefits from the Department of Veterans Affairs, or your income level does not require you to file a tax return, then you need to submit information to the IRS to receive an Economic Impact Payment.
Complete this free online form so that the IRS can identify you and your dependents, and receive valid direct deposit and address information about you. This information allows the IRS to calculate your eligibility and send you the Economic Impact Payment.
Do NOT continue here if: