"We bag groceries at USAF Commissary in Florida. We work for Tips only, no form 1099. We file schedule C. Is this income considered 'Qualified Business Income' ???
Yes, as long as you are not or have not been employed by the Commissary. Income from employers or former employers doesn't count for QBI purposes.
Since you don't receive a 1099, this income is reported as ''Other Income from Self-Employment, not on a 1099''. It is treated exactly like it would be if it were reported on a 1099-MISC.