Can I NOT claim my 16yr old child if he has to file due to stock sale exceeding his limit for me to file on my return? Would he benefit more then me claiming him?

[SweetieJean]

You can still claim him, unless he provided more than 50% of his own support.

He cannot "claim himself" if you CAN claim him (even if you chose not to).  Those are the IRS rules.  Also see:

https://ttlc.intuit.com/questions/1901223-how-do-i-report-and-pay-the-kiddie-tax