This article explores the influence of accounting on the fundraising process for civil society organizations (CSOs), emphasizing its strategic importance for financial sustainability. Through an in-depth analysis of literature and theoretical approaches, the study identifies the main challenges faced by CSOs in obtaining funding, including compliance with accounting standards, transparency in financial statements and communication of their social impacts. It highlights that robust accounting practices are essential for building funders' trust, boosting donations and maximizing efficiency in the use of resources. The article also examines emerging accounting strategies aimed at donors, who seek clear and reliable information on how their social investments are managed. We conclude that the application of improved accounting practices can significantly improve the credibility of CSOs, facilitating fundraising and building long-term partnerships. This research contributes to filling theoretical and practical gaps, providing guidelines for CSO managers and accountants seeking to strengthen their financial strategies and improve their relationships with donors and social investors