If your daughter files a 2021 tax return and is not your dependent, she should say that she did not receive the third stimulus. She will be eligible for the Recovery rebate credit of $1,400.
You as her parents do not have to repay the stimulus you received in 2021 which was based on your 2019 return. This is how the law is written.
The IRS says: No, there is no provision in the law that would require individuals who qualify for a Third Economic Impact Payment or an additional payment based on their 2020 or 2019 information, to pay back all or part of the payment if, based on the information reported on their 2021 tax returns, they would have qualified for a lesser amount.
Please read this IRS FAQ for more information.
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