Government Spending Study Pack

Kibin's free study pack on Government Spending includes a 3-section study guide, 8 quiz questions, 10 flashcards, and 1 open-ended Explain review question. Sign up free to track your progress toward mastery, plus upload your own notes and recordings to create personalized study packs organized by course.

Last updated May 21, 2026

Topic mastery0%
Save progress →

Government Spending Study Guide

Break down how government spending is organized across federal, state, and local levels, and why it matters for the broader economy. This pack covers mandatory vs. discretionary spending, transfer payments like Social Security and Medicare, and how deficits and national debt connect to long-run fiscal sustainability — giving you a clear picture of where public money comes from, where it goes, and why.

Key Takeaways

  • •Government spending is divided into federal, state, and local levels, each with distinct expenditure priorities — federal spending is dominated by Social Security, national defense, and Medicare/Medicaid, while state and local spending concentrates on education, public safety, and infrastructure.
  • •Transfer payments, such as Social Security and unemployment insurance, redistribute income to individuals without exchanging a good or service, and they constitute the largest single category of U.S. federal spending.
  • •Mandatory spending is set by existing law and does not require annual congressional approval, whereas discretionary spending must be authorized through the annual budget process and is therefore more directly controllable by legislators.
  • •Government spending as a share of GDP has grown substantially over the 20th and 21st centuries, driven largely by the expansion of entitlement programs rather than by increases in defense or discretionary categories.
  • •Economists use the budget balance — the difference between government revenues and expenditures — to assess fiscal stance; a deficit occurs when spending exceeds revenue, and a surplus occurs when revenue exceeds spending.
  • •Federal borrowing to cover deficits adds to the national debt, which is the cumulative stock of outstanding government obligations, and persistent debt raises questions about long-run fiscal sustainability and intergenerational equity.

The Structure of Government Spending in the United States

Government spending in the United States operates at three distinct levels — federal, state, and local — and each level has its own revenue sources, constitutional responsibilities, and spending priorities.

Federal Government Spending Categories

  • •Social Security is consistently the single largest line item in the federal budget, accounting for roughly one-fifth of all federal expenditures.
  • •Medicare and Medicaid together represent another large and growing share, providing health coverage for elderly, disabled, and low-income populations.
  • •National defense is the largest discretionary spending category at the federal level, covering military personnel, equipment, and operations.
  • •Net interest payments on the national debt constitute a mandatory and growing expenditure that does not deliver direct public services.

State and Local Government Spending Categories

  • •Elementary and secondary education is the dominant expenditure for most state and local governments, funded primarily through property taxes and state revenue.
  • •Public safety — including police, fire protection, and corrections — is another major local priority.
  • •Infrastructure such as roads, bridges, water systems, and public transit is primarily financed and maintained at the state and local level.
  • •Medicaid is jointly financed by federal and state governments, making it a significant budget pressure for state legislatures as well.

Mandatory vs. Discretionary Spending

One of the most important distinctions in public budgeting is whether spending is mandatory — meaning governed by existing eligibility laws — or discretionary — meaning subject to annual legislative appropriation.

Mandatory Spending and Entitlement Programs

  • •Mandatory spending is determined by formulas embedded in existing legislation: anyone who meets the eligibility criteria is legally entitled to the benefit, regardless of the annual budget.
  • •Social Security, Medicare, Medicaid, and certain income-support programs such as the Supplemental Nutrition Assistance Program (SNAP) are the primary mandatory programs.
  • •Because mandatory spending automatically expands when more people become eligible — for example, as the population ages — it tends to grow as a share of the budget without direct legislative action.
  • •Changing mandatory spending requires Congress to alter the underlying eligibility statutes, which is politically difficult and infrequent.

Discretionary Spending and the Appropriations Process

  • •Discretionary spending covers programs that Congress funds each year through appropriations bills, including national defense, education grants, scientific research, and foreign aid.
  • •Defense discretionary spending typically accounts for roughly half of all discretionary outlays at the federal level.
  • •Non-defense discretionary spending, though politically visible, represents a relatively small fraction of the total federal budget.
  • •Because discretionary spending must be re-authorized annually, it is more vulnerable to cuts but also more responsive to shifting political priorities than mandatory spending.

About this Study Pack

Created by Kibin to help students review key concepts, prepare for exams, and study more effectively. This Study Pack was checked for accuracy and curriculum alignment using authoritative educational sources. See sources below.

Sources

More in Macroeconomics

See all topics →

Browse other courses

See all courses →