@zangerkathy
If your brother CANNOT be claimed as a dependent on a 2020 return then he needs to file his own 2020 tax return and say in My Info that he cannot be claimed as someone else's dependent. He can enter his income, etc. and then use the recovery rebate credit in Federal Review to say that he did not receive any stimulus money yet. That should put the first two stimulus amounts on line 30 of his Form 1040. The 3rd stimulus is completely separate and will come later.
However---you have provided no details about your brother---why did you claim him in 2019 and what is different for 2020? CAN he be claimed?
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.**
