How are we to file a return for clients who have not received all of the stimulus amounts for this year and have only Social security income? I have a few with social security only who did not receive the last stimulus amounts. I can see that most of these have started drawing SS in the last year or so. Will electronic filing system accept 0 returns this year? Or do we just do $1 income?  I have searched tax topics on this forum and everything seems to come up prior to 2021. IRS. gov from what I can see, is not specific to 0 taxable income.