This chapter defines the concept of financial management and establishes the relationship between financial management and nonprofit financial managers. A nonprofit perspective on financial management includes financial planning, financial monitoring, financial decisions, and financial accountability in order to ensure that an organization can sustain its financial resources to fulfill its vision and mission through the achievement of organizational goals and objectives. The chapter discusses the various facets of nonprofit corporate finance and accounting and lists the most common funding sources of nonprofit organizations. It examines the financial and accounting principles and procedures related to the management of a nonprofit organization. The chapter addresses basic accounting principles that leaders of a nonprofit organization should be aware of, and the conditions surrounding the financial situation of a nonprofit organization. It describes a financial management system and explains the relationship between financial management and the financial sustainability of nonprofit organizations.