text:  Wow. So they have to file a tax return, huh, the little grandkids? The little grandkids. If they got stock and they sold it, they would have to pay, you know, report their own tax return. But if it goes over $2,000 of gains, now all of a sudden the rest of the gain is starting to be reported at the parents' tax rates, called the kiddie tax laws. You don't even want to learn about that.