The 18 year old can still be claimed as a dependent. He can file his own return to seek tax withheld but must say on his return that someone else can claim him. His earnings do not go on your tax return.
We cannot be sure about the 19 year old------was the 19 year old a full-time student in 2023? Did they earn more than $4700 in 2023? If the older one was 19 at the end of 2023, and was NOT a student, and earned over $4700, the 19 year old cannot be claimed as anyone else's dependent. The details matter.
IRS interview to help determine who can be claimed:
https://www.irs.gov/help/ita/who-can-i-claim-as-a-dependent
**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.**
