The Section Finance Manual for the American Society of Civil Engineers (ASCE) provides comprehensive guidelines for financial management and accounting practices for Sections and their subsidiary organizations, applicable for the fiscal year ending September 30, 2025. It covers essential topics such as the responsibilities of treasurers, tax reporting requirements, budgeting practices, and resources for financial management, emphasizing the varying complexities of different Sections and the importance of compliance with IRS regulations and proper record-keeping.%0a The manual also details the process for preparing budgets, the significance of using both Natural and Functional accounting methods, and the necessity of audits for financial oversight. Additionally, it addresses tax filing requirements, insurance coverage for Sections, and offers checklists for compliance and financial management. Overall, this document serves as a vital resource for treasurers and board members to ensure effective financial operations within ASCE Sections.