Charity, like the notions of volunteerism and philanthropy, provides real social bonding and contributes to the creation of inclusive and more resilient societies. Charity can alleviate the worst effects of humanitarian crises, supplement public services in health care, education, housing and child protection. It assists the advancement of culture, science, sports, and the protection of cultural and natural heritage. It also promotes the rights of the marginalized and underprivileged and spreads the message of humanity in conflict situations.

The International Day of Charity was established with the objective of sensitizing and mobilizing people, NGOs, and stakeholders all around the world to to help others through volunteer and philanthropic activities.

The date of 5 September was chosen in order to commemorate the anniversary of the passing away of Mother Teresa of Calcutta, who received the Nobel Peace Prize in 1979 "for work undertaken in the struggle to overcome poverty and distress, which also constitute a threat to peace."