Of the Constitutional Power of the Federal Government to Impose Taxes and Incur Debt
“It is true that the power of Congress to tax is a very extensive power. It is given in the Constitution, with only one exception and only two qualifications. Congress cannot tax exports, and it must impose direct taxes by the rule of apportionment, and indirect taxes by the rule of uniformity. Thus limited, and thus only it reaches every subject, and may be exercised at discretion.”
- U.S. Chief Justice Salmon Portland Chase (The License Tax Cases, 1866)
The Congress shall have Power to lay and collect Taxes: The Constitution grants Congress extremely broad powers to raise revenue through a variety of different types of taxes. It divides taxes into two mutually exclusive categories: indirect taxes which must be applied uniformly throughout the country and direct taxes which must be apportioned based on State populations. The Framers of the Constitution assumed that indirect taxes, which were essentially consumption taxes, would fund the federal government under ordinary circumstances. Because the burden for indirect taxes ultimately tended to fall on the consumer in the form of higher prices, which in turn drove down demand, the Framers believed that this would act as the ultimate check on government overreach. The current progressive income tax system has essentially disabled this intended self-regulatory mechanism. Direct taxes were intended to be used only in emergencies such as in times of war. Direct taxes were imposed directly on individuals, who, the Framers assumed, could not readily shift their liability to others. Four factors strongly influenced the Frames in determining the taxation powers granted to the federal government, the restrictions on those powers, and the limitations placed on the taxation powers of the States.
The National Debt: The Constitution gives Congress the power to borrow money on the credit of the United States. The 14th Amendment makes it unconstitutional for the federal government to default on the national debt.
Income Taxes: The Constitution, as originally ratified in 1787, gave Congress the power to levy a federal income tax, but the first tax on personal income wasn’t imposed until 1861 when it was used to help pay for the Civil War. A Supreme Court ruling (Pollock v. Farmers' Loan & Trust Co., 1895) made it difficult to impose income taxes in a way that applied coherently to all forms of income. The 16th Amendment removed that impediment by exempting all federal taxes on income from the constitutional requirement that direct taxes be apportioned among the states according to population. This made the modern federal income tax system possible.
Accountability: To impose accountability on Congressional spending and a check on the power of the executive branch, the Constitution requires that:
Congress must appropriate, through laws, all funds to be spent before those funds can be released by the U.S. Treasury.
The executive branch cannot spend any money unless it has been appropriated by the Congress.
The federal government must make its revenues and expenditures public.
To see each of the specific clauses in the US Constitution that address the powers of the Federal and the State governments to impose taxes and incur debt, check out The Clauses >>