1. Short title This Act may be cited as the Expand American Educational Opportunity Act of 2017 . 2. Extension and modification of american opportunity tax credit (a) In general Section 25A of the Internal Revenue Code of 1986 is amended to read as follows: 25A. American opportunity tax credit (a) Allowance of credit In the case of an individual who is an eligible student for any taxable year, there shall be allowed as a credit against the tax imposed by this chapter for such taxable year the amount determined under subsection (b) with respect to such individual. (b) Amount of credit (1) Student enrolled at least ½ time In the case of an eligible student who is carrying at least ½ the normal full-time workload for the course of study the student is pursuing, the amount determined under this subsection with respect to such individual is the sum of— (A) 100 percent of so much of the qualified tuition and related expenses paid by the taxpayer during the taxable year (for education furnished to the eligible student during any academic period beginning in such taxable year) as does not exceed $2,000, plus (B) 25 percent of such expenses so paid as exceeds $2,000 but does not exceed $4,000. (2) Other students In the case of an eligible student not described in paragraph (1), the amount determined under this subsection with respect to such individual is 25 percent of so much of the qualified tuition and related expenses paid by the taxpayer during the taxable year (for education furnished to the eligible student during any academic period beginning in such taxable year) as does not exceed $10,000. (c) Limitation based on modified adjusted gross income (1) In general The amount which would (but for this paragraph) be taken into account under this section for the taxable year shall be reduced (but not below zero) by the amount determined under paragraph (2). (2) Amount of reduction The amount determined under this paragraph is the amount which bears the same ratio to the amount which would be so taken into account as—