Côte d'Ivoire's economy is increasingly recognised for its significant contributions from both formal and informal sectors. However, there remains uncertainty regarding the precise extent of the informal economy’s contribution to Gross Domestic Product (GDP). This study aims to provide a clearer picture. An action research methodology was employed to gather primary data from various stakeholders including community leaders, small business owners, and government officials. A mixed-methods approach combining surveys and interviews was utilised. The analysis revealed that the informal economy contributes approximately 30% to Côte d'Ivoire's GDP, highlighting its substantial role in the country’s economic fabric. This study underscores the importance of formalizing the informal sector to achieve a more balanced and sustainable economic growth model. The findings suggest potential for policy interventions that could enhance both income levels and overall economic stability. Policymakers are advised to implement inclusive fiscal and regulatory policies aimed at supporting and integrating the informal economy into the formal sector, thereby fostering broader economic development.