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

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.

Revenue from tariffs goes to the US Treasury’s general fund

That's also where federal income taxes go. Revenue from tariffs can be spent on almost anything the government needs, such as funding programs like Medicare or the military.

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.

Use this calculator to find out what your federal income taxes pay for

In the fiscal year 2024, the US federal government's biggest spending priorities included $1.5T on Social Security, $877B on national defense, and $874B on Medicare. This calculator from the Microsoft AI for Good Lab can help you estimate how your tax dollars are allocated across $6.8T in federal spending.

Calculate how much of your tax dollars go to each federal program based on your income, filing status, and number of children

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.

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.

See how the income taxes in the US compare to other countries

The US's highest marginal income tax rate is 37%. That rate is compared to other countries' both in a map and accompanying chart. Denmark has the highest rate at nearly 56%, while a handful of countries don't use marginal taxes at all. In the Middle East, many countries count on oil and gas to finance their governments.

Nearly 70% of the US government’s debt is domestic

This includes intragovernmental holdings like the Social Security Trust Fund and investments from US citizens, banks, and mutual funds. About 30% is foreign-held, with countries like Japan and China as major creditors, investing in US Treasury securities due to their perceived safety.

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.

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.

The federal government has spent more money annually than it has collected every year since 2022

The government borrows money to cover this deficit, which increases the national debt. It’s the fourth most expensive spending category in the US budget.

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.

It cost the IRS $0.36 to collect $100 in 2024

It costs the IRS a significant amount of money to do part of its job—collecting money. For instance, the Internal Revenue Service spent $16.1B to collect $4.7T in taxes in 2023.

Learn how tax brackets actually work

The US has a series of tax brackets which grow progressively larger based on the amount of income a taxpayer makes. Contrary to common belief, most people don't pay just one tax bracket, but all of them progressively until they reach their income.

The US federal government employs roughly 3 million people

Tracking began in 1939, when the federal workforce consisted of about 1 million people. The total peaked in 1990 at 3.4 million, and hit a recent low in 2014 at 2.7 million.

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.

Historically, only about 1% to 2% of Americans had to pay the federal estate tax

Recent IRS data shows that between 2011-16, that number dropped even lower: The federal estate tax only impacts about 0.2% of Americans. Death taxes typically only impact the rich, and the federal estate tax is no exception.

Immigrants generated about $1.7T in economic activity in 2023 and paid roughly $652B in taxes

This economic output surpasses their 14.3% share of the US population, and their labor force participation rate of nearly 67% is higher than the approximately 62% rate for US-born workers.

Roughly 40% of basic US research is federally funded

Basic research aims to produce new knowledge for it's own sake, as opposed to applied research, which seeks direct application. Private businesses make up the bulk of the rest of the funding.

The Federal Reserve follows the health of the US economy by tracking the money supply

That includes all of the physical and electronic money in circulation. It tracks not only US coins and bills, but also the money that moves through bank deposits. The Fed uses metrics called trackers to follow different types of transactions through the money supply.

Half of Americans have an unfavorable opinion of the IRS, while 38% have a favorable view

From July 1 to July 7, 2024, Pew Research Center conducted a survey of 9,424 adults to gauge the public's attitudes about the federal government, including government agencies and departments. Of 13 agencies, 10 had net favorable ratings of 15 percentage points or more. Topping the list were the National Park Service (76% favorable), the US Postal Service (72%) and NASA (67%).

Most Americans take the standard tax deduction

A tax deductible is an expense that a taxpayer or business can subtract from adjusted gross income, reducing their taxable income and therefore reducing the amount of taxes owed. Governments often use tax deductibles as a way to reward people who do things that are considered beneficial to society, like charitable donations.

The United States is one of only around two dozen countries with a fully federal system of government, in which power is divided between national and state governments.

The average salary for full-time gig workers is roughly $60K a year in the US

High-earners can make more than six figures, while close to 15% make less than the federal minimum hour wage. Most gig workers in the United States still have to file a tax return every year.

US holiday retail sales reached $973B in 2024

In 2024, US holiday retail sales reached $973B—nearly one-fifth of annual sales. Many companies depend on this season to bolster revenues.

The USPS spent $3.97B in 2024, accounting for .058% of the federal budget.

The NFL makes most of its money through media licensing deals

The NFL, which reportedly earned more than $20B in 2023, generates its revenue through several key streams. The largest comes from media licensing deals, where networks and streaming platforms pay billions for the rights to broadcast games. Corporate sponsorships are another major contributor.

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

The US dollar is the most widely circulated currency in the world, and is involved in nearly 90% of global transactions

Art theft is the third-largest source of criminal revenues worldwide, thanks in part to the subjective nature of valuing a work of art.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

Hedge funds, the private investment firms that trade a wide swath of financial assets, make money by imposing steep fees on investors and from the fund's investment performance.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

See a ranking of the best (and worst) Federal Reserve Chairs since 1914 out of the 16 men and women who have held the office since.

11 people died from firework injuries in the US in 2024.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

Experimental hantavirus vaccines and therapies, still under development, have long been funded by the US military.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

A century of Billboard issues documenting the evolution of popular music.

Some renewable energy sources may weaken the resiliency of electric grids by removing outage buffers provided by coal- and natural gas-fired plants, which provide the system with more time to find a new power source if a plant goes down.

While the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.

Poison ivy can cause rashes year-round since all parts of the plant contain urushiol, the oil that triggers our allergic response.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

Meet the 56 signers of the Declaration of Independence—most of whom didn't put pen to paper until August 2, 1776—and see their original signatures.