may, within a period of one year beginning 5 months after the effective date of this amendatory Act of the 99th General Assembly, make an election to re-establish rights to a surviving spouse annuity under Sections 7-154 through 7-158 (notwithstanding the eligibility requirements of paragraph (a)(1) of Section 7-154), by paying to the Fund: (1) the total amount of the refund received for survivor credits; and (2) interest thereon at the actuarially assumed rate of return from the date of the refund to the date of payment. Such election must be made prior to the date of death of the annuitant.
The Fund may allow the annuitant to repay this refund over a period of not more than 24 months. To the extent permitted by the Internal Revenue Code of 1986, as amended, for federal and State tax purposes, if a member pays in monthly installments by reducing the monthly benefit by the amount of the otherwise applicable contribution, the monthly amount by which the annuitant's benefit is reduced shall not be treated as a contribution by the annuitant but rather as a reduction of the annuitant's monthly benefit.
If an annuitant makes an election under this subsection (c) and the contributions required are not paid in full, an otherwise qualifying spouse shall be given the option to make an additional lump sum payment of the remaining contributions and qualify for a surviving spouse annuity. Otherwise, an additional refund representing contributions made hereunder shall be paid at the annuitant's death and there shall be no surviving spouse annuity paid.
40 ILCS 5/7-159