; and (2) is not in default on any loans for which the borrower seeks forgiveness. (b) Qualified loan amount (1) Two years of service The Secretary shall cancel an amount equal to 50 percent of the loan obligation on any loans made under this part to a borrower described in subsection (a) that are outstanding after the borrower’s completion of 2 years of service as a TechCorps member. (2) Additional years of service Subject to paragraph (3), with respect to a borrower who receives the loan cancellation under paragraph (1) after the completion of the 2 years of service required under such paragraph, and— (A) who serves for an additional year as a TechCorps member upon completion of such 2 years of service, the Secretary shall cancel an amount equal to 50 percent of the loan obligation on any loans made under this part to the borrower that are outstanding after the borrower’s completion of such additional year of service; and (B) who serves for a second additional year as a TechCorps member upon completion of the additional year of service described in subparagraph (A), the Secretary shall cancel the loan obligation on any loans made under this part to the borrower that are outstanding after the borrower’s completion of such second additional year of service. (3) Maximum amount The aggregate loan obligation of a borrower that may be cancelled under this section may not exceed the amount equal to the maximum aggregate amount of Federal Direct Stafford Loans and Federal Direct Unsubsidized Stafford Loans that may be awarded to a dependent student under this part. (c) Tax treatment The amount of a loan, and interest on a loan, which is canceled under this section shall not be considered income for purposes of the Internal Revenue Code of 1986. (d) Prevention of double benefits No borrower may, for the same voluntary service, receive a benefit under both this section and— (1) section 428K; (2) section 455(m)