@chasator Did you get any of the 3rd Stimulus payment that came out in March 2021? It would have been based on your 2020 return. It was 1400 person. If you got any of that then you don't qualify for the Recovery Rebate Credit on 1040 Line 30. Line 30 is only if you didn't get the full amount or qualify for more. You might have tried to claim it again.
Double check your bank statements and Check your IRS account (both accounts if married)
Your Online Account | Internal Revenue Service
