Internally Generated Revenue (IGR) in Anambra State between 2008 and 2024 has seen significant growth. IGR rose from ₦6 billion in 2008 to ₦42 billion in 2024, representing a 603% increase over 16 years, and a 302% increase over the last decade. Most of the growth has occurred since 2015, suggesting stronger enforcement, better tax systems, or improved economic activity under recent administrations.