The assets of the Middlesex County Retirement System are accumulated from three sources: member contributions, investment returns and governmental appropriations.
Member contributions are the contributions that you make to the retirement system during your membership. The Middlesex County Retirement System maintains these contributions in an annuity savings account, and the system pays interest on these contributions. They are invested in the Pension Reserves Investment Trust (PRIT) Fund and various other investment vehicles. The returns on those investments account for a portion of the system’s assets. The annual appropriations from the towns, districts and authorities within Middlesex County fund the system as well.