Discretionary Spending

Discretionary spending is the part of government spending that Congress votes on each year in Principles of Economics. It covers programs and projects the government can raise, cut, or end through the budget process.

Last updated July 2026

What is Discretionary Spending?

Discretionary spending is the part of the federal budget that lawmakers decide on each year in Principles of Economics. Unlike spending that is written into law and continues automatically, this money has to be approved through annual appropriations bills.

That means Congress gets to choose how much goes to areas like national defense, education, transportation, and many federal agencies. If lawmakers want to spend more on roads or research, they can raise discretionary spending in that category. If they want to cut spending, they can reduce or eliminate a program the next year.

This is different from mandatory spending, which is set by existing laws and keeps going unless the law changes. Programs such as Social Security or Medicare do not depend on a yearly appropriations vote in the same way. That difference is why discretionary spending is often described as the part of the budget with the most flexibility.

In the United States, discretionary spending makes up about one-third of total federal spending, so it is a big piece of the budget, but not the whole thing. Because it is renewed every year, it becomes a major part of budget negotiations in Congress. Lawmakers use it to show their priorities, especially when they are debating national security, public schools, roads, or scientific research.

You will also see discretionary spending used as a tool of fiscal policy. During a recession or other downturn, the government may increase spending on infrastructure projects or support programs to raise demand and create jobs. When politicians talk about cutting the deficit, discretionary spending is often one of the first places they look because it is easier to change than mandatory spending.

Why Discretionary Spending matters in Principles of Economics

Discretionary spending is one of the main ways government choices show up in Principles of Economics. It connects the budget process to real economic outcomes, like jobs, public goods, and deficits.

If a city or federal government funds a highway project, expands school funding, or increases military spending, that changes how money moves through the economy. Those choices can affect aggregate demand, especially when spending is timed during a downturn. A class discussion about stimulus spending usually depends on whether the money comes from discretionary programs and whether Congress approves it quickly enough.

It also gives you a clear way to read budget debates. When lawmakers argue about cutting spending, they are often talking about discretionary items because they can be changed annually. When they argue about mandatory programs, the discussion is different because the spending is tied to laws already in place.

This term also helps you separate policy goals. A government can use discretionary spending to build infrastructure, support education, or respond to a recession, but each choice has tradeoffs. More spending may support growth or services, while less spending may reduce the deficit or shift money elsewhere.

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How Discretionary Spending connects across the course

Mandatory Spending

Mandatory spending is the main comparison term because it is not decided through the yearly appropriations process. Once a law creates an entitlement or automatic payment rule, the spending continues unless Congress changes that law. Discretionary spending, by contrast, is the flexible part of the budget that Congress revisits each year.

Fiscal Policy

Fiscal policy is the broader use of government spending and taxes to influence the economy. Discretionary spending is one of the clearest tools inside fiscal policy because lawmakers can raise or cut it directly. When a government tries to stimulate growth, discretionary spending often becomes part of the plan.

Budget Deficit

A budget deficit happens when government spending is higher than revenue. Discretionary spending matters because it is one of the easiest parts of the budget to adjust if lawmakers want to shrink a deficit. Debates about deficit reduction often focus on whether to cut discretionary programs or change mandatory ones.

Great Recession

The Great Recession is a useful example of why discretionary spending gets attention during downturns. Governments often respond to weak demand by increasing spending on public projects or support programs. That makes the term easier to spot in real policy discussions about recovery and stimulus.

Is Discretionary Spending on the Principles of Economics exam?

A quiz question may ask you to identify which part of the federal budget Congress votes on each year, or to explain why a road project is discretionary while Social Security is not. In a short-response prompt, you might trace how a recession could lead policymakers to raise discretionary spending on infrastructure to boost demand and jobs. If you get a budget chart, look for the slice that can change from year to year rather than the automatic spending category. You may also be asked to connect discretionary spending to deficit reduction, so be ready to explain why lawmakers target it first even though it is only part of total federal spending.

Discretionary Spending vs Mandatory Spending

Mandatory spending is spending that happens because a law says it must happen, while discretionary spending is approved through the annual budget process. The easiest way to tell them apart is to ask whether Congress has to vote on the amount every year. If it does, it is discretionary. If the payment continues automatically under existing law, it is mandatory.

Key things to remember about Discretionary Spending

  • Discretionary spending is the part of the federal budget Congress decides on every year.

  • It covers areas like defense, education, infrastructure, and many agency budgets.

  • This spending is different from mandatory spending because it can be changed through annual appropriations.

  • Lawmakers often debate discretionary spending when they talk about deficits, stimulus, or budget priorities.

  • In economics, it is one of the main ways the government can respond to a recession or shift public investment.

Frequently asked questions about Discretionary Spending

What is discretionary spending in Principles of Economics?

It is the part of government spending that Congress approves each year through the budget process. The amount can go up, down, or disappear depending on policy choices. That makes it the flexible part of the federal budget.

How is discretionary spending different from mandatory spending?

Discretionary spending needs yearly approval, but mandatory spending continues because existing laws require it. Social Security and Medicare are common examples of mandatory spending, while defense and many education programs are discretionary. The difference comes from how the spending is authorized.

What are examples of discretionary spending?

National defense, education funding, transportation projects, and many federal agency budgets are common examples. Infrastructure investment often shows up here because Congress can choose how much to fund in a given year. These categories can change as political priorities change.

Why do economists talk about discretionary spending during recessions?

Because governments can use it as part of fiscal policy to raise demand and support jobs. Spending more on infrastructure or public programs can put money into the economy faster than waiting for automatic programs to change. That is why it comes up in discussions of stimulus and recovery.