If a member purchases service and thereafter revokes their application for retirement or negates their retirement as provided in Rule 541, the contributions made to purchase the service shall remain in the system until a distributable event occurs. If the distributable event results in payment of a monthly retirement benefit or an optional death benefit, the purchase price of the service previously purchased will be recalculated based on factors existing on the date the new benefit becomes effective. If, based on the new factors, the purchase price is higher than previously determined, the number of months purchased will be reduced to reflect the higher cost unless the member elects to pay the difference. If the purchase price is lower, the difference will be paid to the member as a lump-sum payment within sixty (60) days after the date of retirement unless the member elects to convert the difference into additional months and can do so without exceeding the forty-eight (48) month limit, the IRS limit referenced in Subsection 705.05, or any other statutory limitation, including the limitation in Section 59-1342(6), Idaho Code.
Idaho Admin. Code r. 59.01.01.627