2020 Instructions for Form 8615 - IRS tax forms
child's unearned income is more than $2,200, use Form 8615 to figure the child's tax. Unearned Income For Form 8615, "unearned income" includes all taxable income other than earned income. Unearned income includes taxable interest, ordinary dividends, capital gains (including capital gain distributions), rents, royalties, etc.