This guide serves as a comprehensive resource for financial planning and analysis (FP&A) leaders focused on developing effective operating budgets. It outlines the increasing complexity of operational planning as organizations grow, emphasizing the importance of strategic alignment, risk management, and optimal resource allocation. The document details the operational planning process, which consists of planning, budgeting, and forecasting, and explains how these components interact at various stages of business growth. Additionally, it presents two approaches to operational planning: top-down and bottoms-up, highlighting their respective benefits and the necessity of reconciling both methods to create a realistic and strategically aligned budget. Key components of an operating budget, including fixed costs, variable costs, revenue, non-operating expenses, and capital costs, are discussed to ensure a thorough understanding of the budgeting process. The guide aims to equip FP&A leaders with the knowledge and tools needed to navigate the complexities of budgeting effectively.