If you will be older than 19 at the end of 2021 and are not a full-time student you cannot be claimed as a dependent if you have had income of more than $4300---not counting Social Security.
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.**
