Your post revolves around the kiddie tax. Taxable scholarships are considered unearned income for the purposes of the kiddie tax. Starting in 2018, unearned income taxed under the kiddie tax will be subject to the rates used for trusts and estates. Generally, the first $1,050 of such income is not taxed because of the standard deduction taken by those who are claimed as a dependent on someone else’s tax return. The next $1,050 of such income is taxed at the child’s rate. Anything over that is taxed using the kiddie tax. For 2017, that means using the parent’s highest marginal rate. For 2018 on, that means using the rates for trusts and estates.