; and (2) to cancel the outstanding balance of interest and principal due on loans made under part D or part E of such title. (d) Repayment refunds (1) Prior repayment Nothing in this section shall be construed to authorize any refunding of any eligible Federal student loan repayment made before the date of enactment of this Act. (2) Payments made after enactment The Secretary shall refund to each borrower who receives forgiveness under this section the amount of any payments the borrower makes on an eligible Federal student loan during the period beginning on the date of the enactment of this Act and ending on the date on which the Secretary forgives the outstanding balance of such eligible Federal student loan. (e) Exclusion from taxable income The amount of a borrower's eligible Federal student loans forgiven under this section, and the amount of any repayments to a borrower under subsection (d)(2), shall not be included in the gross income of the borrower for purposes of the Internal Revenue Code of 1986. 3. Purchase and forgiveness of outstanding private student loans (a) In general Part D of title IV of the Higher Education Act of 1965 ( 20 U.S.C. 1087a et seq.) is amended by inserting after section 459B the following: 459C. Temporary authority to purchase and forgive eligible private student loans (a) Private education loan purchase and forgiveness Notwithstanding any other provision of law, not later than 180 days after the date of enactment of the Student Debt Cancellation Act of 2019, the Secretary, in consultation with the Secretary of the Treasury, shall carry out a program under which the Secretary shall purchase, and then forgive, the outstanding balance of interest and principal due on eligible private student loans. (b) Definitions In this section: (1) Eligible private student loan In this section, the term eligible private student loan means a private education loan, as defined in section 140(a) of the Truth in Lending Act ( 15 U.S.C. 1650(a) ), that was expressly for the cost of attendance (as