NO TAX DUE?

[LTLTLT]

Filing a 1040 for a dependent child with unearned income of $1600, less standard deduction of $1350 results in taxable income of $250. Yet, Turbo tax says Federal tax liability is "0".  Since $250 of taxable income is subject to 10% tax rate, why is turbo tax not showing a tax liability of $25?? Any help would be appreciated. 

[Bsch4477]

If the unearned income is qualified dividends or capital gains it would not be taxed at their income level. 

[LTLTLT]

Thank you.  With the exception of about $400, non qualified dividends, the remaining $1200 is capital gains and qualified dividends.  I trust since the majority is cap gain and qual div, the result is no tax liability. Appreciate your prompt response.