Revenue from tariffs goes to the US Treasury's general fund.

Tariffs once fueled the US economy, historically serving as a primary source of revenue and a means to protect domestic industries.

Individual income taxes are the federal government's primary revenue source, see a tracker that breaks down where the rest of the budget comes from

The US government historically makes nearly half of its total revenue last year from individual income taxes. But the US makes also makes money from a variety of other sources, including Medicare taxes and corporate income taxes. However, the federal government has run a deficit since 2001—reaching a peak of $3.13T in 2020.

Tariffs are taxes levied on goods imported from abroad.

The history of tariffs stretches back to ancient Rome and Greece, where taxes were levied on imported grain and textiles to control trade.

Charting where federal revenue comes from

About 50 percent of federal revenue comes from individual income taxes, 7 percent from corporate income taxes, and another 36 percent from payroll taxes that fund social insurance programs. See breakdown in charts here.

Tariffs are typically paid by the importing company or organization to the US Treasury.

See a chart showing how US tariff revenue has grown in recent years.

Policymakers make complex trade-offs when considering tariffs—while they can generate government revenue and encourage the consumption of locally produced goods, they can also lead to higher consumer prices and may negatively impact economic growth.

On July 1, 1862, the agency now known as the Internal Revenue Service was established and named the Bureau of Internal Revenue

It was created to collect the first-ever US income tax, which was created to help pay for the Civil War. After gaining their independence from Britain, Americans were skeptical about giving the federal government absolute power to collect federal income taxes. As a result, early US tax laws dictated that direct taxes, like income taxes, had to be directly apportioned to a state's population. The nation went back and forth on its federal tax laws multiple times. For instance, in 1872, the income tax from the Civil War was repealed. But it was revived in 1894, and then repealed again in 1895. In 1913, Congress passed the 16th Amendment, giving Congress the power to levy income taxes on individuals and corporations without apportioning the burden among the states in line with population, once and for all.

Tax policy can have a direct impact on the national debt, with past presidents' changes to tax codes inflating the deficit.

Treasury bonds, notes, and bills are critical vehicles for the federal government to raise money for public expenses and manage the national debt.

Use this calculator to find out the programs and services your federal income taxes fund.

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An economic evaluation of US tariffs

Most economists agree that the implementation of large-scale tariffs on foreign goods would hurt both the American and global economies. This video from The Wall Street Journal explains the rationale for tariffs as a tool for domestic job creation, but explains why they may hurt the overall economy.

The US officially adopted an income tax in 1913

The US first levied income taxes during the Civil War, but modern income taxes became an American fixture in 1913. Two years earlier, Congress passed the 16th Amendment to give the government the right to tax individuals' and businesses' income. The US still technically levies the same federal income tax now as it did then—though it's evolved.

Read an overview of US tariff policy before the second Trump Administration

This comprehensive report from the Congressional Research Service explores the evolving role of tariffs—from a major source of government revenue to a tool for trade and foreign policy—providing insights into current practices, legal foundations, and global trade dynamics.

The 16th Amendment paved the way for capital gains taxes

Ratified in 1913, the 16th Amendment paved the way for a far-reaching federal income tax and supercharged the country’s coffers. Before then, the US depended on import tariffs and so-called consumption taxes to raise revenue.

Before the 16th Amendment, US tax law required direct taxes to be directly apportioned to a state's population

Due to these requirements, the federal government could not impose many direct taxes. Direct taxes include property and income taxes, whereas indirect taxes include duties and excises.

Listen to a podcast episode that outlines 250 years of world trade history.

Over a century ago, fewer than 1% of Americans paid income taxes—but the cost of World War II prompted the federal government to greatly expand the number of people required to pay income taxes.

How do tariffs work?

This brief animated video from Time walks through a simple example of a tariff on a single good, illustrating how this would affect the market for the good—both domestically and abroad—and who would eventually bear the cost of the tariff.

The Tariff Act of 1789 was one of America's first acts.

Track how American tariffs have impacted different countries and industries.

Nearly 70% of the US government's debt is domestic.

Map of each state's largest tax revenue source

While America’s federal government primarily raises revenue through personal and corporate income taxes, it's a different story for each of the 50 states. This map shows how every state raises tax revenue for government activities. New York and California, for instance, raise most of that money through personal income taxes, whereas Texas and Florida have sales tax as their largest sources of tax revenue. Click here to see the map.

One in seven US tax dollars is collected by local governments

Local governments collect about $886B each year to support education, infrastructure, and public health. Roughly three-quarters of this funding comes from property taxes, with the rest sourced from sales, excise, and income taxes.

The IRS—a division of the US Treasury Department that enforces the Internal Revenue Code, collects taxes, and enforces tax laws—has been a frequent victim of arson over the years.

The US has carried debt since 1791

After the Revolutionary War, the US owed $75M to nations like France. Debt builds when spending exceeds revenue, funding programs, wars, and economic recovery efforts. Most debt is domestic, like Social Security bonds, with foreign nations also holding a share.

Americans between the ages of 45 and 55 pay nearly 30% of all income taxes, paying an average tax rate of around 17%.

Since 1913, Americans have paid income taxes at varying rates

In the 2020s, the top marginal tax rate has floated around 37%, relatively lower than previous eras. Some have called for boosting the rate significantly to tax the highest earners.

The overall economic effect of President Trump's 2025 tariffs remains unclear

Researchers from UCLA and Yale found that tariff revenue and gains to US producers largely offset importers' costs—but the broader picture is murkier, as the trade deficit rose, manufacturing jobs declined, and 90% of tariff costs were passed through to importers rather than absorbed by foreign exporters.

If the US government paid off its debt, it could disrupt the entire bond market, as Treasury bonds are among the most common bonds for investors and the majority of the national debt is in bonds.

Capital gains taxes were first levied in the US in 1913

However, up until 1921, they were treated the same as ordinary income. Ever since then, rates have swung up and down.

Death taxes have helped fund wars since the 1860s

Death taxes date back to 700 BCE and were used in Ancient Rome and Ancient Egypt. In the US, they've been used to finance wars since the Civil War, and have been levied on both the estate and beneficiary. The estate tax created during WWI to help finance war efforts is still in effect today.

The federal deficit is the gap between what the US spends and what it collects.

How the federal income tax affected Prohibition

In the early 1900s, 30% to 40% of government tax revenue came from liquor, wine, and beer, a reliance that made Prohibition seem like a fiscal impossibility. But the passage of the federal income tax in 1913 changed the calculus, which helped allow the government to ban alcohol production and sales.

See comparisons of different countries' taxation strategies

Taxes are a major revenue source for most countries, and how each government taxes citizens often reflects the country's economy. Developed countries tax at much higher rates than developing ones, and as a country grows its GDP, it also typically grows the proportional percentage of taxes it gains from its citizens.

Roughly 22% of US tax dollars go to Social Security

Social security is the US government’s largest expense. You can see other government expenses in a visual breakdown of what one US tax dollar actually pays for. Total spending amounts were converted to cents on the dollar and percentages.

The US government is legally allowed to borrow money from the Social Security Trust Fund surpluses as long as it issues Treasury bonds to the Trust Fund in return and repays those bonds with interest when Social Security needs the money to pay benefits.

The Constitution gives Congress sweeping control over the federal budget

Article I, Section 8's Spending Clause authorizes Congress to tax, pay debts, and promote the "common Defence and general Welfare," making it one of Congress's most powerful tools—and the constitutional foundation of federal budget control.

Investors collectively owned $28T in US Treasury securities as of 2025.

Federal spending falls into 2 categories: mandatory and discretionary

Federal spending is split between mandatory programs, funded automatically by law, and discretionary programs, funded through annual appropriations. This video breaks down which major programs fall into each category and why the distinction matters.

See a chart showing how much the US federal government pays in interest on its debt.

Most pensions are subject to federal income taxes

Those taxes kick in once someone starts taking distributions from their pension. Whether a pension is subject to state income taxes depends on the state and other factors. Learn more about how pensions are taxed in this article.

See how income taxes in the US compare to those of other countries.

Watch this video to learn how US tax brackets actually work.

The House of Representatives controls the $7T federal budget

The House holds the exclusive "power of the purse" to initiate revenue bills, a provision in the US Constitution designed to divide power with the Senate and give states with larger populations greater influence over federal budgeting.

The current federal budget, deficit, and debt, in charts

The US Treasury regularly publishes updated data on the federal budget, and this site hosts visualizations of that data. See reports on spending, revenues, deficits, and where the national debt stands.

About one dollar in every six that are owed to the federal government aren't paid each year

That adds up to close to $1T in what's known as the "tax gap." Read a breakdown on the main drivers of tax evasion (distinct from legal tax avoidance) in the US.

What America's 1% pays in taxes, by state

In the US, the top 1% of earners contribute 45% of all personal income taxes collected nationwide. But not all states are created equal when it comes to income tax. Some states are more dependent on the 1% than others for tax revenue. SmartAsset recently examined IRS tax return data to determine exactly how much the top 1% of earners in each state paid in taxes. Find your state here.

Nearly half of the discretionary funding in the US is allocated to national defense.