OASDI trust fund ratio
(3) (A) If in any month after a loan has been made to a Trust Fund under paragraph (1), the Managing Trustee determines that the assets of such Trust Fund are sufficient to permit repayment of all or part of any loans made to such Fund under paragraph (1), he shall make such repayments as he determines to be appropriate. (B) (i) If on the last day of any year after a loan has been made under paragraph (1) by the Federal Hospital Insurance Trust Fund to the Federal Old-Age and Survivors Insurance Trust Fund or the Federal Disability Insurance Trust Fund, the Managing Trustee determines that the OASDI trust fund ratio exceeds 15 percent, he shall transfer from the borrowing Trust Fund to the Federal Hospital Insurance Trust Fund an amount that— (I) together with any amounts transferred from another borrowing Trust Fund under this paragraph for such year, will reduce the OASDI trust fund ratio to 15 percent; and (II) does not exceed the outstanding balance of such loan. (ii) Amounts required to be transferred under clause (i) shall be transferred on the last day of the first month of the year succeeding the year in which the determination described in clause (i) is made. (iii) For purposes of this subparagraph, the term “OASDI trust fund ratio” means, with respect to any calendar year, the ratio of— (I) the combined balance in the Federal Old-Age and Survivors Insurance Trust Fund and the Federal Disability Insurance Trust Fund, as of the last day of such calendar year, to (II) the amount estimated by the Commissioner of Social Security to be the total amount to be paid from the Federal Old-Age and Survivors Insurance Trust Fund and the Federal Disability Insurance Trust Fund during the calendar year following such calendar year for all purposes authorized by this section (other than payments of interest on, and repayments of, loans from the Federal Hospital Insurance Trust Fund under paragraph (1), but excluding any transfer payments between such trust funds and reducing the amount of any transfer to the Railroad Retirement Account by the amount of any transfers into either such trust fund from that Account). (C) (i) The full amount of all loans made under paragraph (1) (whether made before or after January 1, 1983 ) shall be repaid at the earliest feasible date and in any event no later than December 31, 1989 . (ii) For the period after December 31, 1987 , and before January 1, 1990 , the Managing Trustee shall transfer each month to the Federal Hospital Insurance Trust Fund from any Trust Fund with any amount outstanding on a loan made from the Federal Hospital Insurance Trust Fund under paragraph (1) an amount not less than an amount equal to (I) the amount owed to the Federal Hospital Insurance Trust Fund by such Trust Fund at the beginning of such month (plus the interest accrued on the outstanding balance of such loan during such month), divided by (II) the number of months elapsing after the preceding month and before January 1990. The Managing Trustee may, during this period, transfer larger amounts than prescribed by the preceding sentence.