Gender equality is beneficial for businesses and society as a whole. As one of the 17 Sustainable Development Goals (SDGs) of the 2030 United Nations Agenda (i.e. SDG5) it calls companies, across different sizes and sectors, to develop a workplace environment where individuals are treated respectfully, regardless of their gender, race, or background. The impartial and fair approach encompasses equal access to resources, opportunities, decision-making responsibilities, and governance while avoiding gender-based discrimination. In response to this call, companies have progressively expanded information voluntarily provided to their stakeholders on strategies and actions taken to face gender equality issues and advance SDG5. However, the voluntary nature of sustainability reporting allows companies to have broad discretion in defining report content, often resulting in disclosure that are largely symbolic rather than substantive. With the aim to better understand how companies report on their gender equality acting, a content-based indicator is proposed. The iGoal5 is structured to quantify the level of completeness of company’s disclosure of SDG5 in terms of sufficient details to understand company’s strategic view, actions taken to ensure gender equality in the workplace, and performance achieved. Prior studies in literature that propose approaches to analyse reporting on SDGs, together with standards and guidelines that help company to ensure quality in sustainability reporting have been taken into consideration to develop the iGoal5 coding framework and the scoring system. The consistency and robustness of the coding frame and its application has been tested through the calculation of the Inter Coder Reliability (ICR). The paper shows an illustrative application of iGoal5 on a sample of sustainability reports of companies operating in the automotive industry, extracted from the Boston Consulting Group 2023’s ranking of the most innovative companies. The application shows that iGoal5 can be easily and reliably used to track the company’s progress toward an effective achievement of gender equality within company’s workplace as well as show that a more detailed disclosure of gender equality is not directly related to the company’s innovation capacity.