Subject to the requirements of this subsection, an employer may pay all or part of the cost of a service purchase of a member in service. To the extent that the purchase is paid by the employer, the amount paid by the employer shall be credited to the Pension Accumulation Fund. To the extent that the purchase is paid by the member, the amount paid by the member shall be credited to the member's accumulated contributions and interest in the Annuity Savings Fund.
The total amount of creditable service purchased under each subdivision of this section shall not exceed five years. No purchase of service credit under any subdivision of this section shall be made if a benefit is allowable under another public retirement system as a result of the service. If there is a conflict between a provision of G.S. 135-56 and a provision of this subsection, then this subsection shall control.
The following purchases of creditable service are authorized under this subsection:
The amount of the single lump sum to be paid for the purchase of service credit under this subdivision shall be calculated by applying the ratio of actual gross compensation earned as a part-time employee to the gross compensation that would have been earned as a full-time employee to the period of service rendered in months.
In no case shall more than one year of service be creditable for all service in one year. Service rendered for the regular school year in any district shall be equivalent to one year of service.
Nothing contained in this subsection shall prevent an employer or member from paying all or a part of the required payment for the omitted membership service. To the extent the amount is paid by the employer, the amount paid by the employer shall be credited to the Pension Accumulation Fund. To the extent the amount is paid by the member, the amount paid by the member shall be credited to the member's accumulated contributions and interest in the Annuity Savings Fund. An employer shall not discriminate against any employed member or group of employed members in paying all or any part of the payment required under this subsection for the omitted membership service.
No rollover contribution shall be made under this subsection, and the Retirement System shall not accept any amount as a rollover contribution, unless the amount required for the payment or repayment is eligible to be rolled over to a qualified trust in accordance with applicable law and the member provides evidence satisfactory to the Retirement System that the amount qualifies for rollover treatment. Unless received by the Retirement System in the form of a direct rollover, the rollover contribution must be paid to the Retirement System on or before the 60th day after the date it was received by the member.
N.C. Gen. Stat. § 135-56.5