Corporate citizenship, as a modern concept, elucidates the reciprocal relationships between firms and their stakeholders. This study presents a reporting model for disclosing corporate citizenship behaviors based on the requirements of global sustainability standards. Initially, the research establishes a framework for reporting corporate citizenship behaviors by reviewing global sustainability standards (e.g., GRI, SASB) and analyzing reports from leading global companies available on the SASB website. This framework is delineated in two sections: the responsibilities of firms towards stakeholders and the responsibilities of stakeholders towards firms. Subsequently, the framework was critically assessed through interviews with eight experts, leading to its eventual validation. The findings of this research propose a framework encompassing both the corporate responsibilities towards stakeholders and the stakeholders' responsibilities towards the corporation. These findings indicate that the reciprocal relationship between firms and stakeholders in the realm of corporate citizenship implies that firms must not only consider their own interests but also adequately respond to the needs and expectations of their stakeholders. Given the emerging approach to corporate citizenship, particularly in developed countries, it is anticipated that this new framework can contribute to the development of the corporate citizenship concept and its application in accordance with modern principles within the real-world context and economic environment of Iran.