@AB461 @JR2002 @4934MB
This is a known bug in the calculations on Form 8615. TurboTax is working on the problem. In the meantime, here is a way that you can work around the bug and get a correct result.
Are there any qualified dividends in the parent's tax return? If not, go through the Child's Income interview again in the child's tax return, and enter $1 in "Parent's Qualified Dividends." When you press Tab or click Continue you should see the tax amount change. Go back and delete the qualified dividends that you entered, or change it to zero. Then proceed through the rest of the Child's Income interview until you get back to the income summary screen. Form 8615 should now be correct.
