For purposes of this subsection, the term “includible compensation” means, in the case of any employee, the amount of compensation which is received from the employer described in paragraph (1)(A), and which is includible in gross income (computed without regard to section
911) for the most recent period (ending not later than the close of the taxable year) which under paragraph (4) may be counted as one year of service, and which precedes the taxable year by no more than five years. Such term does not include any amount contributed by the employer for any annuity contract to which this subsection applies. Such term includes—