In the year 9 CE, Emperor Wang Mang of the Xin dynasty issued an edict that fundamentally altered the relationship between the state and the individual by taxing net earnings from nonagricultural activities. This was not a tax on land or slaves, which had been the standard for millennia, but a direct levy on the profits of fishermen, shepherds, and traders. The government required citizens to report their own earnings, and officials were empowered to audit these self-declared figures. The penalty for evasion was severe, involving one year of hard labor and the total confiscation of a person's property. The system proved so unpopular that it was abolished just thirteen years later in 22 CE, yet it stands as the first recorded instance of an income tax in human history. This early experiment demonstrated that taxing the flow of money rather than the static ownership of assets required a level of administrative precision and a money-based economy that most civilizations had not yet developed. The failure of Wang Mang's tax highlighted the difficulty of enforcing such a system without reliable records and a common understanding of receipts and expenses.
The British War Chest
The modern income tax was born out of the desperate need to fund the French Revolutionary War, with Prime Minister William Pitt the Younger introducing the first graduated tax in Great Britain in 1799. Pitt's budget proposed a levy starting at 2 old pence in the pound on incomes over 60 pounds, rising to a maximum of 10 percent on incomes exceeding 200 pounds. The government hoped to raise 10 million pounds annually, but the actual receipts for 1799 totaled only a little over 6 million pounds. The tax was abolished in 1802 during the Peace of Amiens, and when hostilities resumed, it was reintroduced by Henry Addington in 1803 before being permanently repealed in 1816. Opponents of the tax, believing it should only exist to finance wars, demanded that all records be destroyed. The Chancellor of the Exchequer publicly burned the records, yet copies were secretly retained in the basement of the tax court. Sir Robert Peel reintroduced the tax in 1842 to address a budget deficit, and despite his previous opposition, it became a permanent fixture of the British fiscal system. By the 1860s, the progressive tax had become a grudgingly accepted element of the United Kingdom economy, even as it faced vociferous objections from those who viewed it as an intrusion into private affairs.The American Constitutional Struggle
The United States federal government imposed its first personal income tax on the 5th of August 1861, to fund the Civil War, levying 3 percent on all incomes over 800 dollars. This tax was repealed and replaced by another in 1862, but the first peacetime income tax did not arrive until 1894 with the Wilson-Gorman tariff, which set a rate of 2 percent on income over 4000 dollars. The Supreme Court ruled this tax unconstitutional, citing the Tenth Amendment and the requirement that direct taxes be apportioned among the states. It was not until the Sixteenth Amendment was ratified in 1913 that the obstacle to a federal income tax was removed. In fiscal year 1918, annual internal revenue collections for the first time passed the billion-dollar mark, rising to 5.4 billion dollars by 1920. The rates fluctuated dramatically over the decades, ranging from 1 percent for the lowest bracket in the early days to over 90 percent for the highest bracket during World War II. This history illustrates how the income tax in the United States evolved from a temporary wartime measure into a permanent, complex system capable of generating massive revenue for the state.