Federal government revenue, reported monthly in the Treasury's Monthly Treasury Statement, encompasses all funds collected through taxation, fees, and other sources. Individual income taxes constitute the largest component (50%), followed by social insurance/retirement receipts (35%), corporate taxes (7%), and other sources (8%). Collection patterns show strong seasonality due to tax filing deadlines, quarterly estimated payments, and payroll tax cycles. Revenue sensitivity to economic conditions (elasticity approximately 1.6 to GDP) makes this a key business cycle indicator. The data includes detailed source breakdowns, geographical distribution, and collection methods (electronic payments now exceeding 85%). Policy changes affect both levels and composition, with significant impacts from tax reform legislation (e.g., TCJA 2017). The metric correlates strongly with economic growth, employment levels, corporate profits, and income distribution patterns, providing crucial insights into fiscal capacity and economic health.