1. She does not have to report support she receives from you as income on her tax return
2. If she CAN be claimed as a dependent she would need to amend her own return
3. If you claim her as a qualified relative----what stimulus funds are you asking about since you say she did not receive the $1200 or the $600? There have only been those two stimulus checks so far---so she has nothing to repay unless it is given to her based on her 2020 return.
4. No, you do not get a stimulus payment for claiming her. Parents get stimulus checks for children under the age of 17. If you claim her all you get is a $500 credit for other dependents. She will not get the $1400 check if she can be claimed as your dependent.
CREDIT FOR OTHER DEPENDENTS
https://ttlc.intuit.com/questions/4499708-what-is-the-500-credit-for-other-dependents-family-tax-cre...
https://ttlc.intuit.com/community/children-dependents/help/what-does-financially-support-another-per...
https://ttlc.intuit.com/community/dependents/help/when-do-i-have-to-answer-yes-to-being-claimed-as-a...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
