Some members are eligible for prior service credit by agreement between PERS and their employer.
You can restore service credit forfeited as the result of a previous refund if you have at least ten years of creditable service under PERS since your re-employment. For every three months of service worked after reemployment in a PERS-covered position, you can purchase one month of forfeited service. The purchase can take place only during the 90-day period just prior to the effective date of your retirement. The Purchase Letter that you receive with your estimate must accompany payment. If you meet these conditions but are not eligible to purchase the total amount of service you forfeited, the cost for the part which you are eligible to purchase will be a prorated portion of the amount you withdrew.