If a member pays all or any portion of the contributions required by section 3307.26 of the Revised Code later than the lesser of five years or a period that is three times the member's period of service in the uniformed services beginning from the later of the member's date of re-employment as a teacher or October 29, 1996, an amount equal to compound interest at a rate established by the board from the later of the member's date of re-employment as a teacher or October 29, 1996, to the date of payment shall be added to the remaining amount to be paid by the member to purchase service credit under this section.
R.C. § 3307.752