About Form 2120, Multiple Support Declaration Information about Form 2120, Multiple Support Declaration, including recent updates, related forms and instructions on how to file. Form 2120 is used by persons claiming a dependent under the multiple support rules to identify all other eligible persons and to indicate they have signed statements from them waiving their rights to claim that person as a dependent. About Form 8332, Release/Revocation of Release of Claim to Exemption for Child by Custodial Parent Information about Form 8332, Release/Revocation of Release of Claim to Exemption for Child by Custodial Parent, including recent updates, related forms, and instructions on how to file. Form 8332 is used by custodial parents to release their claim to their child's exemption. About Publication 501, Dependents, Standard Deduction, and Filing Information Information about Publication 501, including recent updates. Publication 501 discusses some tax rules that affect every U.S. citizen or resident, and covers who must file, who should file, what filing status to use, and the amount of the standard deduction. Related Items/Temas Relacionados About Publication 17, Your Federal Income Tax (For Individuals) Información sobre la Publicación 17 (SP), el Impuesto Federal sobre los Ingresos About Publication 17 Part 1 Useful Items About Publication 17 Part 2 Useful Items About Publication 17 Part 3 Useful Items About Publication 17 Part 4 Useful Items About Publication 17 Part 5 Useful Items About Publication 17 Part 6 Useful Items