Abstract
<jats:p>Introduction. In today's dynamic business environment, where competition is constantly increasing, the success of any project depends on a meticulous approach to its implementation. Financial planning is the cornerstone of this process, playing a critical role in determining the viability, stability, and profitability of an enterprise. Effective planning does not merely create a roadmap for fund allocation; it allows for the anticipation of capital deficits and the optimization of operating costs, providing a solid foundation for sustainable business growth. Purpose. The purpose of the article is a comprehensive study and substantiation of the key role of financial planning in ensuring the sustainable success of business projects. The work is aimed at analyzing the fundamental principles of budgeting, cash flow forecasting, and break-even analysis. A vital task is the identification of typical planning errors and the formulation of practical recommendations for entrepreneurs regarding the improvement of financial resource management processes. Methods. The study utilizes a set of scientific methods: theoretical analysis of literature to form a conceptual framework; a systems approach to consider finance as an integrated component of management; and a comparative analysis of domestic and international methodologies. A logical approach and synthesis ensured the internal consistency of the presentation and the scientific validity of the findings. Results. It is proved that financial planning is a strategic imperative for making informed decisions and minimizing risks through "what-if" scenarios. It is established that a high-quality financial plan is a decisive factor in attracting investment, as it demonstrates the team's professionalism and the transparency of the business model. Systematic budgeting allows for the identification of irrational expenses and significantly increases the project's profitability. Conclusions. The conducted research confirms that the success of a business project is directly proportional to the quality of its financial planning. Investing resources in the development of a detailed plan is a strategic investment in long-term profitability. Financial planning acts as an active management tool that transforms abstract ideas into a stable economic reality. </jats:p>