My daughter only has income from dividends and capital gains. Her tax bill tripled this year, but is still under $38,600. Why did her taxes go up so much?

[SunnyM]

The Tax Cuts and Jobs Act changed how the Kiddie Tax works. Please see this faq for Kiddie Tax for more info:

https://ttlc.intuit.com/questions/4482394-how-will-tax-reform-affect-my-2018-federal-tax-return