contributions under subsection (d), if such contribution would result in aggregate contributions for the calendar year exceeding $2,000. (d) Government matching contribution (1) In general Upon such showing as the Executive Director may require to establish the basis for certification, the Executive Director shall, with respect to each private contribution to the account of an account holder which is made before such account holder attains age 18, certify to the Secretary the matching amount with respect to such contribution. (2) Matching amount (A) In general For purposes of this subsection, the term matching amount means, an amount equal to 100 percent of contributions made by the account holder (or a legal guardian of the account holder) to the USAccount of an individual during any calendar year beginning after the calendar year in which the USAccount is established, not in excess of $500 for the calendar year. (B) Phaseout based on earned income credit phaseout The $500 amount in subparagraph (A) shall be zero if the adjusted gross income (or, if greater, the earned income) of the taxpayer for the taxable year as exceeds the phaseout amount. For purposes of this paragraph, terms used in the preceding sentence which are used in section 32 of the Internal Revenue Code of 1986 shall have the meanings given such terms by such section 32. (e) Distributions (1) In general No amount may be distributed from a USAccount before the date on which the account holder attains the age of 18. (2) Higher education expenses Paragraph (1) shall not apply to amounts paid for qualified tuition and related expenses (as defined in section 25A(f)(1) of the Internal Revenue Code of 1986) of the account holder if the account holder is an eligible student (as defined in section 25A(b)(3) of such Code) with respect to such expenses. (3) Rollover (A) In general Not later than 180 days after the date on which the account holder attains the age of 18, the balance of such individual’s account shall be transferred to a USAccount IRA