Deductions & credits

no, since there are security sales in their custodial a/c's at a loss you do not get to claim them.   if the security losses exceed their investment income, to be able to use any loss carryovers in future years returns would have to be for them. 

do the kids have to file

they must file a return if any of the following apply.
• their unearned income was over $1,100.
• their gross income was more than $1,100, 

 

Gross income includes gains, but not losses, reported on Form 8949 or Schedule D.