The City of Parramatta RSL sub-Branch provides comprehensive support and care for serving and ex-service Defence Force members and their dependents. Their objectives include effective management of the League's assets for the benefit of its members and serving members of the ADF, promoting government and community awareness of a stable and progressive Australia, and providing welfare and advocacy services for serving ,and ex-servicemen and women and their dependents.

The branch provides assistance to all veterans in need, actively supports the commemoration and remembrance of those who have served our country, and participates in employment programs for veterans and their dependents. They provide moral and active support to the ADF by promoting fair pay and allowances, providing comfort parcels and lobbying for appropriate benefits.

The City of Parramatta RSL sub-Branch actively cooperates with other ex-service organisations to support the education of the youth of Australia in the achievements of our armed forces.