26 U.S.C. § 21: Expenses for household and dependent care services necessary for gainful employment

In the case of an individual for which there are 1 or more qualifying individuals (as defined in subsection (b)(1)) with respect to such individual, there shall be allowed as a credit against the tax imposed by this chapter for the taxable year an amount equal to the applicable percentage of the employment-related expenses (as defined in subsection (b)(2)) paid by such individual during the taxable year. reduced (but not below 35 percent) by 1 percentage point for each $2,000 or fraction thereof by which the taxpayer’s adjusted gross income for the taxable year exceeds $15,000, and further reduced (but not below 20 percent) by 1 percentage point for each $2,000 ($4,000 in the case of a joint return) or fraction thereof by which the taxpayer’s adjusted gross income for the taxable year exceeds $75,000 ($150,000 in the case of a joint return). a dependent of the taxpayer (as defined in section 152(a)(1)) who has not attained age 13, a dependent of the taxpayer (as defined in section 152, determined without regard to subsections (b)(1), (b)(2), and (d)(1)(B)) who is physically or mentally incapable of caring for himself or herself and who has the same principal place of abode as the taxpayer for more than one-half of such taxable year, or the spouse of the taxpayer, if the spouse is physically or mentally incapable of caring for himself or herself and who has the same principal place of abode as the taxpayer for more than one-half of such taxable year. expenses for household services, and expenses for the care of a qualifying individual. a qualifying individual described in paragraph (1)(A), or a qualifying individual (not described in paragraph (1)(A)) who regularly spends at least 8 hours each day in the taxpayer’s household. such center complies with all applicable laws and regulations of a State or unit of local government, and the requirements of subparagraph (B) are met. provides care for more than six individuals (other than individuals who reside at the facility), and receives a fee, payment, or grant for providing services for any of the individuals (regardless of whether such facility is operated for profit). $3,000 if there is 1 qualifying individual with respect to the taxpayer for such taxable year, or $6,000 if there are 2 or more qualifying individuals with respect to the taxpayer for such taxable year. in the case of an individual who is not married at the close of such year, such individual’s earned income for such year, or in the case of an individual who is married at the close of such year, the lesser of such individual’s earned income or the earned income of his spouse for such year. $250 if subsection (c)(1) applies for the taxable year, or $500 if subsection (c)(2) applies for the taxable year. An individual shall not be treated as having the same principal place of abode of the taxpayer if at any time during the taxable year of the taxpayer the relationship between the individual and the taxpayer is in violation of local law. If the taxpayer is married at the close of the taxable year, the credit shall be allowed under subsection (a) only if the taxpayer and his spouse file a joint return for the taxable year. An individual legally separated from his spouse under a decree of divorce or of separate maintenance shall not be considered as married. maintains as his home a household which constitutes for more than one-half of the taxable year the principal place of abode of a qualifying individual, and furnishes over half of the cost of maintaining such household during the taxable year, and during the last 6 months of such taxable year such individual’s spouse is not a member of such household, section 152(e) applies to any child with respect to any calendar year, and such child is under the age of 13 or is physically or mentally incapable of caring for himself, with respect to whom, for the taxable year, a deduction under section 151(c) (relating to deduction for personal exemptions for dependents) is allowable either to the taxpayer or his spouse, or who is a child of the taxpayer (within the meaning of section 152(f)(1)) who has not attained the age of 19 at the close of the taxable year. The term “student” means an individual who during each of 5 calendar months during the taxable year is a full-time student at an educational organization. The term “educational organization” means an educational organization described in section 170(b)(1)(A)(ii). the name, address, and taxpayer identification number of such person are included on the return claiming the credit, or if such person is an organization described in section 501(c)(3) and exempt from tax under section 501(a), the name and address of such person are included on the return claiming the credit. No credit shall be allowed under this section with respect to any qualifying individual unless the TIN of such individual is included on the return claiming the credit. The Secretary shall prescribe such regulations as may be necessary to carry out the purposes of this section. If the taxpayer (in the case of a joint return, either spouse) has a principal place of abode in the United States (determined as provided in section 32) for more than one-half of the taxable year, the credit allowed under subsection (a) shall be treated as a credit allowed under subpart C (and not allowed under this subpart). by substituting “$8,000” for “$3,000” in paragraph (1) thereof, and by substituting “$16,000” for “$6,000” in paragraph (2) thereof. by substituting “50 percent” for “35 percent”, and by substituting “$125,000” for “$15,000”. Subsection (a)(2) shall be applied by substituting “the phaseout percentage” for “20 percent”. The term “phaseout percentage” means 20 percent reduced (but not below zero) by 1 percentage point for each $2,000 (or fraction thereof) by which the taxpayer’s adjusted gross income for the taxable year exceeds $400,000. The Secretary shall pay to each possession of the United States with a mirror code tax system amounts equal to the loss (if any) to that possession by reason of the application of this section (determined without regard to this subsection) with respect to taxable years beginning in or with 2021. Such amounts shall be determined by the Secretary based on information provided by the government of the respective possession. The Secretary shall pay to each possession of the United States which does not have a mirror code tax system amounts estimated by the Secretary as being equal to the aggregate benefits that would have been provided to residents of such possession by reason of this section with respect to taxable years beginning in or with 2021 if a mirror code tax system had been in effect in such possession. The preceding sentence shall not apply unless the respective possession has a plan, which has been approved by the Secretary, under which such possession will promptly distribute such payments to its residents. to whom a credit is allowable against taxes imposed by a possession with a mirror code tax system by reason of this section, or who is eligible for a payment under a plan described in paragraph (2). For purposes of this subsection, the term “mirror code tax system” means, with respect to any possession of the United States, the income tax system of such possession if the income tax liability of the residents of such possession under such system is determined by reference to the income tax laws of the United States as if such possession were the United States. For purposes of section 1324 of title 31 , United States Code, the payments under this subsection shall be treated in the same manner as a refund due from a credit provision referred to in subsection (b)(2) of such section. The amendments made by this section [amending this section and sections 151, 6109, 6213, and 6724 of this title] shall apply with respect to returns the due date for which (without regard to extensions) is on or after the 30th day after the date of the enactment of this Act [ Aug. 20, 1996 ]. In the case of returns for taxable years beginning in 1995 or 1996, a taxpayer shall not be required by the amendments made by this section to provide a taxpayer identification number for a child who is born after October 31, 1995 , in the case of a taxable year beginning in 1995 or November 30, 1996 , in the case of a taxable year beginning in 1996.” The amendment made by subsection (a) [amending this section] shall apply to expenses paid in taxable years beginning after December 31, 1987 . For purposes of section 125 of the Internal Revenue Code of 1986, a plan shall not be treated as failing to be a cafeteria plan solely because under the plan a participant elected before January 1, 1988 , to receive reimbursement under the plan for dependent care assistance for periods after December 31, 1987 , and such assistance included reimbursement for expenses at a camp where the dependent stays overnight.” Except as provided in paragraph (2), the amendments made by this section [amending this section and enacting section 129 of this title ] shall apply to taxable years beginning after December 31, 1981 . The amendments made by subsection (e)(2) [amending sections 3121, 3306, and 3401 of this title and section 409 of Title 42 , The Public Health and Welfare] shall apply to remuneration paid after December 31, 1981 .”