The Knights and members of The Equestrian, Secular and Chapterial Order of Saint Joachim raise funds as a fully registered UK Charity (registered charity No. 1047873) in order to contribute to worthy causes around the world. The Order prefers to make contributions directly to small, grassroots charities that are otherwise overlooked and where The Order's donation will have the greatest impact on people's lives. These traditionally include charities that support the homeless, ex-servicemen, hospitals and children's charities.

The Order was originally established for charitable and chivalric purposes. In 1821 Perrot described the mission of The Equestrian, Secular and Chapterial Order of Saint Joachim as follows: 

"The Knights solemnly vow to worship the Supreme Being, show tolerance towards all religions, loyalty towards their princes, support the needs of their military, the poor, widows and orphans."

Perrot further stated that The Order of Saint Joachim also existed to assist in the welfare of its own members: 

"This charitable foundation had as its purpose through its Commanderies easing the burden on its less fortunate members in their old age, and providing the means for its more well off members to continue to prosper."

The Order also recognizes and encourages charitable work and good deeds through the granting of its awards and distinctions to deserving members of the public.