The GSA provides a collective voice to protect the superannuation rights of government employees who have contributed to one of the Government Superannuation Fund (GSF) schemes or the National Provident Fund (NPF) Defined Benefit Plan.

The purpose of the GSA is to safeguard the current provisions of the GSF and NPF schemes and to improve them by having deficiencies and anomalies removed.

The GSA has been a collective voice for government annuitants since 1920.