You can not e-file a zero income return. The IRS computers will not accept it.
If you mail the IRS a zero income return, it will not be processed. It goes straight to the shredder.
If you are not required to file a return for 2019, simply go to the IRS website where you can see if you qualify for a stimulus check. If you do, then you provide them your information for that check, on their website.
