N.Y. Retirement & Social Security Law § 1207
a. Notwithstanding any general, special or local law to the contrary, a member in active service who has credit for at least one year of member service may borrow, no more than once within each twelve month period, an amount not exceeding seventy-five percent of the total contributions made pursuant to section twelve hundred four of this article or any other article of this chapter and not less than one thousand dollars. b. An amount so borrowed, together with interest on any unpaid balance thereof, shall be repaid in equal installments which shall be made by the borrower directly to the retirement system or through regular payroll deduction. Such installments shall be in such amount as the retirement system shall approve; however, they shall be at least (a) two percent of the member's contract salary, and (b) sufficient to repay the amount borrowed, together with interest on unpaid balances thereof, within a period not in excess of five years. In the event of default, the retirement system shall be authorized to collect such payments due from the employer of such member through payroll deduction and such member shall forfeit all future entitlement to borrow from the retirement system until the unpaid balance of the loan outstanding at the time of default is fully paid. The retirement system, at any time, may accept payments on account of any loan in addition to the installments fixed for repayment thereof. All payments of principal and interest at the rates set forth in subdivision c of this section made by the member shall be credited to his or her account as principal or interest. Any additional interest paid by the member shall be credited to the appropriate fund of the retirement system. c. The rate of interest payable upon loans made pursuant to this section shall be one percent less than the valuation rate of interest adopted for such system. Whenever there is a change in the interest rate, it shall be applicable to loans made or renegotiated after the date of such change in the interest rate. d. A service charge payable upon loans made pursuant to this section shall be set by the retirement system in an amount sufficient to cover the cost to the retirement system of administering the loans. Such charge shall be paid to the retirement system when the loan is made or in equal installments over the period the loan is outstanding. The amount of the service charge shall be credited to the fund from which administrative expenses are paid. e. 1. Each loan made pursuant to this section shall be insured against the death of the member in an amount equal to the amount of the loan outstanding at any given time; with the exception that until thirty days have elapsed after the making thereof, no part of the loan shall be insured. Such insurance shall be provided by the retirement system. Upon the death of the member, the amount of insurance so payable shall be credited to his or her account. The premium payable by the member for such insurance shall be set by the retirement system at a rate not to exceed one percent of the amount loaned.