What happens is the program gives you the entire stimulus credit once you completed just the MY INFO tab based off of how many people are on the return. Then the credit is reduced by the amount of the credit you got in advance when you finally get to that section at the end of the interview.
FYI ... this also happens with the CTC ... the entire credit is put in the refund amount estimate when you entered qualifying children in the MY INFO tab at the beginning of the interview and then when you are finally asked how much you got in advance later in the Deductions & Credits section the refund shown is reduced accordingly.
And also for the EIC ... once you have qualifying dependents and income on the return you are then brought to the EIC questions and told you get the EIC but the refund meter doesn't change ... that is because the credit was already in the refund amount shown before you got to the EIC section. What could have happened at that point (after you answer some questions) is the credit is removed if you no longer qualify which is not a happy thing.
Not the most user friendly way to do this but this is how the program has been set up for decades and I doubt it will change now.
