@putegrain No the letter 6475 is telling you how much the IRS sent you so you do not claim it again on your tax return. Line 30 is only if you didn't get the full amount or qualify for more.
If your 2021 is too high to qualify for the Recovery Rebate Credit it won't ask you for it. If your AGI is too high you don't have to enter what you got or letter 6475 and you don't have to pay it back and it is not taxable.
If you are trying to trigger it,
Click on Other Tax Situations at top
Click on Let's get started
Answer some questions then Continue
Then click on Let's keep going
Next screen is for the Third Stimulus, if you qualify
And double check 1040 line 30. Line 30 is only if you did not get the full amount or qualify for more. It is not for the amount you already got.
If you did not get prompted to enter your stimulus information, that means you either:
Filed as a dependent being claimed on another tax return, or
have an AGI too high to claim the recovery rebate
