Ok ... you cannot efile a zero income return AND don't expect the CTC advance as that may never happen AND entering in the banking info now may not work. BUT if you want to try enter in $1 of bank interest to allow the return to efile.
If that $1 option will not allow the entry of the DD info then say you did not get all the advance stimulus money last year ...enter in $1 less than you actually got to force a $1 refund that the IRS will refuse to send but they "MAY" keep the DD info on file ... there are no guarantees.
The IRS may open a portal for folks to enter their DD info in later before those advance payments may happen. Otherwise you can simply wait and get the entire credit on the 2021 return you file next year.
