Government spending in the United States
Total government spending
This government total excludes spending by "government enterprises" which sell goods and services "to households and businesses in a market transaction." These "government enterprises" include the U.S. Postal Service, Federal Housing Administration, flood insurance, housing authorities, transit systems, airports, water ports, and utilities. However "their investment, interest payments, and operating surplus (or deficit) are recorded as government transactions."
BEA also shows $3.8 trillion government consumption expenditures and gross investment, which excludes transfer payments (like social security), subsidies and interest. BEA describes its different totals.
OECD for 2015 shows general government spending at 37.9% of GDP, or $21,536 per capita. BEA's 34% is smaller because it just includes government spending. OECD's total is larger because it also includes fees, e.g. tuition payments at public colleges.
IMF for 2018 shows general government at 35% of GDP.
Components of federal government spending
For most governments around the world, the majority of government spending takes place at the federal/national level. As of 2019, in the United States, approximately 55% of government spending is spent by the federal government, while the remaining 45% of government spending is spent by state and local government. Federal government spending in the United States can be broken down into three general categories: mandatory/entitlement spending, discretionary spending, and interest on government debt.
Mandatory/entitlement spending is spending for programs with funding levels that are automatically determined by the number of eligible recipients in those programs. Mandatory programs are created under authorization laws, meaning that Congress must provide whatever funds are necessary to keep these programs functional. Funding for these programs cannot be adjusted in the annual budget process; on the contrary, the only way Congress can change funding levels for these programs is by amending the authorization laws directly. Each year, the Office of Management and Budget provides an estimate of required funds for these programs, which is included in the annual budget.
Mandatory programs include:
- Social Security: Financial support for the elderly.
- Healthcare: Medicare (health insurance for the elderly) and Medicaid (health insurance for low-income individuals).
- Income Security: Disability Assistance, Food and Nutrition Assistance, Supplemental Security Income, Earned Income Tax Credits, and Child Tax Credits.
- Veterans Benefits: Income Security for Veterans and Healthcare Assistance.
- Other: Agriculture, Energy, General Government Services, and International Affairs.
Figure A provides a breakdown of the major mandatory government spending categories as of the fiscal year 2019 budget approved by Congress. As Figure A suggests, Social Security is the single largest mandatory spending item, taking up 38% or nearly $1,050 billion of the $2,736 billion total. The next largest expenditures are Medicare and Income Security, with the remaining amount going to Medicaid, Veterans Benefits, and other programs.
Discretionary spending is optional spending that is determined by Congress each year through an annual appropriations process. After mandatory spending levels have been estimated by the Office of Management and Budget, discretionary spending is determined by both chambers of Congress and usually includes input from the current president of the United States. Subcommittees in both the House of Representatives and the Senate appropriate discretionary funds for their respective areas, and the two chambers reconcile their differences. Once a final spending bill has been created, passed and signed by the president, the bill becomes law.
Discretionary spending includes:
- Defense: Spending attributable to the maintenance and strengthening of the United States Armed Forces.
- Transportation: Road improvements and repairs, air traffic control, Amtrak and other infrastructure investments.
- Education: K-12 education grants, school choice programs, disability and special education programs, and lunch assistance.
- Other veterans' benefits.
- Public health, law enforcement, natural resources, and science.
- Housing assistance and community services.
- Foreign affairs and other expenditures.
Figure B provides a snapshot of the major discretionary government spending categories as of the fiscal year 2019 budget approved by Congress. As the figure suggests, over 50% of discretionary spending is attributed to national defense. The remaining 48% of funds is divided among non-defense items such as transportation and education. Total discretionary spending approved for the fiscal year 2019 is $1,305 billion, just 28% of total spending.
National defense spending
National defense spending is any government spending attributable to the maintenance and strengthening of the United States Armed Forces, including the Army, Navy, Marines, and the Air Force. As of the fiscal year 2019 budget approved by Congress, national defense is the largest discretionary expenditure in the federal budget. Figure D provides a historical picture of military spending over the last few decades. In 1970, the United States government spent just over $80 billion on national defense. Over the next two decades, national defense spending increased steadily to around $300 billion per year. Military spending fell in the 1990s, but increased markedly in the 2000s as a result of the War in Afghanistan and Iraq. Military spending was cut slightly during the Obama Administration, but the Trump Administration plans to ramp up military spending to combat ISIL. National defense spending is expected to be $678 billion in 2019, an amount greater than the military expenditures of the next 9 countries combined.
Key defense expenditures typically include:
- Power Projection: Spending on sea power and air power, including nuclear submarines, aircraft, and aircraft carriers.
- Munitions: Maintenance of existing ammunition inventory, as well as procurement of new ammunition.
- Nuclear Deterrence: Maintaining and expanding all nuclear systems.
- Overseas Contingency Operations: Funds available for unexpected warfare abroad. For example, these funds were used to pay for the wars in Iraq and Afghanistan.
- Missile Defense: Improvements in missile defense technology and integration of current technology at home and abroad.
- Space Systems and Cyberspace Operations: Communication control and radar technology.
Interest on government debt
Oftentimes, federal governments spend more money than they collect in tax revenue in a given year. When the government spends more than it brings in, it runs a Budget Deficit that year. In order to pay for the extra spending, governments issue debt. Government debt is the amount of money credited from individuals, firms, foreign entities as well as the federal government itself through the federal reserve system. Debt accrues over time. Most public debt is held in the form of treasury bills and bonds, and the government has to pay down debt over time. In order to provide an incentive for individuals, businesses and other entities to lend money, the government must also pay these parties interest on the debt. The interest expense for fiscal year 2019 is $363 billion, or 7.9% of the total budget. According to estimates from the Office of Management and Budget, interest on government debt is expected to more than double by 2028 and account for a larger percentage of total expenditures.
State and local government spending
The Census of Governments for 2017 shows $3.7 trillion total of state ($2.3) and local ($1.9) government expenditures. The total is less than the parts, to exclude duplicative inter-governmental transactions. The data are available for detailed categories of revenue and expenditure for each state, and for the total of local governments in each state.
At the beginning of the 20th century, the majority of government spending in the United States took place at the local level. However, federal spending increased relative to state and local spending as a result of World War I and World War II, and by the 1930s, state and local government spending accounted for less than one half of government spending. By 2019, federal spending was more than 20% of GDP, while state and local spending hovered around 17% of GDP. As a result, in recent years, state and local governments account for approximately 45% of total government expenditures. State and local government spending is typically spent in 6 broad categories: elementary and secondary education, higher education, health, welfare, police and safety, and transportation. Over the last few decades, funding for education at the state level has fallen, while funding for health has more than doubled.
While federal governments often run budget deficits (where government spending exceeds government tax revenue), state governments usually have balanced budgets. A balanced budget is when government spending in a given year equals government revenue in that year. This high degree of fiscal balancing is a result of most states in the U.S. having balanced budget requirements. A balanced budget requirement is a law that requires a government to balance its budget annually, such that government spending equals government revenue. There are two types of balanced budget requirements: ex-post balanced budget requirements, and ex-ante balanced budget requirements. An ex-post balanced budget requirement stipulates that a government must balance their budget by the end of each fiscal year, while an ex-ante balanced budget requirement dictates that a state must adopt a balanced budget at the beginning of each fiscal year. Ex-ante balanced budget requirements rely on estimates and assumptions about future costs and revenue growth, so they are more easily manipulated.
With a population of nearly 40 million as of 2018, California has by far the largest annual state expenditures. California receives a significant amount of money from the federal government, especially for healthcare and welfare programs, but also has large in-state expenditures. According to California's Department of Finance, the state's 2017-2018 enacted state budget includes over $180 billion in state funds. As can be seen below, Table 1 gives an overview of California's 2017-2018 enacted state budget. As the table suggests, health care and K12 education represent California's largest expenditures of state funds. The largest health care expenditure is for California's Medi-Cal program, a health insurance program for low-income families in California. In addition, health care spending is focused on women's health services, treatment for addiction, and dentistry. As Table 1 suggests, California also spends significantly on higher education, police, and transportation, with smaller portions of funding attributable to environmental protection and other activities.
|State Agency||State Funds ($ Billions)||Percent (%) of Total|
|Corrections and Rehab||$13.9||8%|
|Legislative, Judicial, and Executive||$6.7||4%|
|Business and Consumer Services||$1.7||1%|
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