Use this form to figure your tax on unearned income over $2,100 if you are under age 18, and in certain situations if you are older. Current Revision Form 8615 PDF Instructions for Form 8615 (Print Version) PDF Recent Developments None at this time. Other Items You May Find Useful All Revisions for Form 8615 About Publication 501, Dependents, Standard Deduction, and Filing Information About Publication 929, Tax Rules for Children and Dependents Other Current Products Related Items About Form 1040, U.S. Individual Income Tax Return About Form 1040-NR, U.S. Nonresident Alien Income Tax Return About Form 1040-X, Amended U.S. Individual Income Tax Return About Form 2555, Foreign Earned Income About Form 4868, Application for Automatic Extension of Time to File U.S. Individual Income Tax Return About Form 8615 Related Items