Tax Year Prior to 2020: Can i claim my child as a dependent on my taxes if they are under age 19 they were a full time student and they worked a part time job and made $7800.

[KarenL2]

Yes, if they meet the other qualifications.  It's okay for them to earn more than $4,050 if under age 24 and a full-time student.

To qualify as a dependent child, the child must live with you more than half of the year and be under age 19 at the end of 2015, or under age 24 if a full-time student. That's defined as attending school full time for at least part of five calendar months of the year -- whether at home or away at school.

If your child provides more than half of his or her own support, you can't claim the child as a dependent.

And, this link may help as well:

Who Can I Claim as a Dependent?

https://ttlc.intuit.com/replies/5187060