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Sources of Personal Income, Tax Year 2013

12 min readBy: Alan Cole

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Key Findings

  • Taxpayers reported $9.2 trillion of total income on their 2013 taxA tax is a mandatory payment or charge collected by local, state, and national governments from individuals or businesses to cover the costs of general government services, goods, and activities. returns, a similar total amount to 2012.
  • Seventy percent ($6.5 trillion) of total income reported on the Form 1040 is in wages and salaries, and about 83 percent of all tax filers report wage or salary income.
  • In order to substantially increase revenues, policymakers generally have to look to labor compensation as the main tax baseThe tax base is the total amount of income, property, assets, consumption, transactions, or other economic activity subject to taxation by a tax authority. A narrow tax base is non-neutral and inefficient. A broad tax base reduces tax administration costs and allows more revenue to be raised at lower rates. , simply because of its sheer scale.
  • Pensions and retirement accounts make up a substantial portion of income, broadly benefiting the middle class. Pensions and annuities ($639 billion), IRA distributions ($214 billion), and Social Security ($243 billion) combine to create $1.1 trillion in retirement income.
  • Business income is also a large feature of the individual tax code. Some businesses, like S corporations, sole proprietorships, or partnerships, file their taxes through the individual tax code, accounting for $908 billion in personal income.
  • Capital gains and dividends accounted for about $806 billion in income in 2013, down from the previous year due to reduced realizations from the fiscal cliff tax hike.


The individual income taxAn individual income tax (or personal income tax) is levied on the wages, salaries, investments, or other forms of income an individual or household earns. The U.S. imposes a progressive income tax where rates increase with income. The Federal Income Tax was established in 1913 with the ratification of the 16th Amendment. Though barely 100 years old, individual income taxes are the largest source of tax revenue in the U.S. is the federal government’s largest source of revenue. Over 147 million individual income tax returns were filed for the year 2013,[1] and in each of these filings a taxpayer added up his or her income in order to report it to the Internal Revenue Service (IRS). The way that the IRS individual income tax form (Form 1040) is structured, one first lists all sources of income on the front side of the form, adding these up to reach “total income.” After this, the tax return moves on to deductions and credits.

This report will focus on sources of total income in 2013, which was reported as $9.2 trillion.[2] It will break down that income into the component parts, reported on lines 7 to 22 of the 2012 Form 1040. Going through the amounts of income reported for each of these categories is a useful and instructive exercise for two reasons: it can help us understand the composition of the government’s revenue base, and it can help us understand how the rewards of economic activity are distributed in the U.S. economy.[3]

It is often helpful to divide income into four major categories: wages and salaries, business income, investment income, and retirement income. This report will examine and describe each of these four categories in turn.

Table 1. Top 10 Sources of Total Income on U.S. Individual Income Tax Returns, 2013 (Billions of Dollars)
Income Type Amount
Source: IRS SOI Table 1.3.
Salaries and Wages $6,475
Taxable Pensions and Annuities $639
Partnerships and S Corporation Net Income $614
Capital Gains Less Losses $483
Business Net Income $302
Taxable Social Security Benefits $243
Dividends $215
Taxable IRA Distributions $214
Taxable Interest $101
Unemployment Compensation $52

Wages and Salaries Make Up 70 Percent of Total Income at $6.5 Trillion

For most tax filers in the U.S., the largest number on the 1040 comes on line 7, the very first line pertaining to income. It is on this line that taxpayers mark wages, salaries, tips, and other compensation for their work. Most Americans get that number from their W-2 forms, supplied by their employers. In total, 122 million tax filers reported $6.5 trillion in wage income, or 70 percent of total income.[4]

Most Americans report labor income, and most of their income comes from labor. This should not be a surprise; the U.S. is a nation of workers, and most of its economy is labor compensation.[5] Any meaningful attempt to raise revenue through the income tax will almost necessarily include wages and salaries in the base, just by virtue of the arithmetic. One cannot raise much income tax revenue by excluding 70 percent of income.

The amounts reported on the 1040 reflect most, but not all, labor compensation. Firms also pay for employee health benefits and make contributions to Social Security. While employee health benefits aren’t taxed at the individual level, the Patient Protection and Affordable Care Act levies a “Cadillac TaxThe Cadillac Tax is a 40 percent tax on employer-sponsored health care coverage that exceeds a certain value. The aim: to curb health-care cost growth, reduce favorable tax treatment of employer-provided insurance, and help fund the Affordable Care Act (ACA). It was repealed in late 2019 before taking effect. ” on some health plans. Furthermore, contributions to Social Security are made through payroll taxA payroll tax is a tax paid on the wages and salaries of employees to finance social insurance programs like Social Security, Medicare, and unemployment insurance. Payroll taxes are social insurance taxes that comprise 24.8 percent of combined federal, state, and local government revenue, the second largest source of that combined tax revenue. es. In other words, while certain worker benefits aren’t counted as personal income, they are involved with the IRS through other taxes.

Business Income Accounts for $908 Billion of Personal Income

In the United States, the dominant tax filing structure for firms is to file taxes as “pass-through” entities, so labeled because their income immediately passes through to the individual owners for tax purposes, without the business itself paying an entity-level tax like the corporate income taxA corporate income tax (CIT) is levied by federal and state governments on business profits. Many companies are not subject to the CIT because they are taxed as pass-through businesses, with income reportable under the individual income tax. . 95 percent of businesses use this structure, and their income shows up on schedules C, E, and F on individual tax returns. While some pass through businesses are quite large, the majority are sole-proprietorships, fully owned by a single individual. Pass-throughs employ the majority of the private-sector workforce in the U.S. and account for the majority of all business income.[6] Partnerships and S corporations accounted for $614 billion of net income in 2013, and individuals reported an additional $302 billion of business income.[7]

This kind of income is distinct from the sort of investment income earned by shareholders of large multinational corporations, in that it often represents compensation for labor—especially for small pass-through businessA pass-through business is a sole proprietorship, partnership, or S corporation that is not subject to the corporate income tax; instead, this business reports its income on the individual income tax returns of the owners and is taxed at individual income tax rates. es like dentists’ offices. The investment income earned from large publicly traded corporations is described in the category below.

Investment Income Accounts for $806 Billion of Personal Income

Certain kinds of income are taxed at what appear to be lower rates—specifically, qualified capital gains and dividends. They draw a lot of scrutiny because of this apparent preference, and also because they fit into the larger debate about income inequality.

Rhetoric about corporate income is often expressed in terms that exaggerate the impact of shareholder income on personal income and income inequality. The returns to corporate equity, as found on individual income tax returns, are substantial, but much more modest than the rhetoric might imply. Taxpayers reported $215 billion of taxable dividends in 2013, and $483 billion of net capital gains, only some of which come from the sale of corporate stock.[8] While these amounts certainly matter, they are substantially smaller than the $6.5 trillion of labor income described previously in this report.

The amount reported in capital gains and dividends belies several popular notions about capital income: for example, the notion that corporations are using their revenues primarily to compensate owners, not workers, or the idea that there is a large idle capitalist class that makes its money from corporate ownership without work. In truth, taxable labor compensation greatly exceeds taxable investment income (Chart 1). It also contradicts the notion that increasing taxes on investment income would have a substantial effect on the U.S. budget deficit, or allow substantial tax cuts for labor income. It is simply too small of a portion of the economy, and the math for such proposals simply doesn’t add up.

Chart 1.

The data for 2013 are particularly noteworthy because a tax increase on this kind of income was enacted as part of the fiscal cliff deal. 2013’s capital gains realizations, at $483 billion, are 22 percent lower than the realizations from the year prior. This substantial reduction in realizations actually meant that on net, the tax increase lost revenue.[9]

In addition to the problem of delayed realizations, capital gains and dividend taxes have several problems: despite superficially preferential rates, they are structured improperly in a way that creates a bias against saving, harming economic growth. [10] A multi-part tax system on saved income, where the principal is taxed at ordinary rates and then the returns are later taxed at lower rates is a much less favorable tax regime than a cursory look at the lower rate would suggest. The unfavorable tax regime results in a lower long-run capital stock, reducing economic output.

It would be far better to tax capital income at ordinary rates, but allow individuals to deduct their contributions to investment accounts—in other words, all saving should have the treatment that Individual Retirement Accounts currently have. This kind of taxable incomeTaxable income is the amount of income subject to tax, after deductions and exemptions. For both individuals and corporations, taxable income differs from—and is less than—gross income. will be described in more detail in the next section.

Retirement Income Accounts for $1.1 Trillion, Mostly Benefiting the Middle Class

In 2013, taxpayers reported a total of $639 billion from pensions and annuities, and another $214 billion in Individual Retirement Account (IRA) distributions.[11] America’s system of retirement accounts, while fragmented in several different programs, is taxed in a neutral way that removes the bias against saving. Furthermore, it actually works fairly well at providing people income in their retirement. Notably, the income from retirement accounts is now a little bit larger than the investment income earned outside of that system.

It’s often hard to keep track of capital income in retirement accounts, especially because it doesn’t show on IRS forms until it is distributed. Economists often struggle with categorizing it correctly. For example, the Congressional Budget Office (CBO) released a report in 2011 on trends in the distribution of income.[12] The report accounted for all the sources of income, including some non-taxable sources. It divided income into categories—largely the same kinds discussed in this report. It sorted pensions into a separate category from labor income and capital income. Pensions are, of course, in part compensation for labor. By deferring their income for many years and having the fund invest it, workers also get a lot of capital income out of the deal—many multiples of their original contributions. While it’s impossible to allocate the pension income precisely between labor and capital, it leans toward the capital side for most workers. The CBO report sorted retirement income into a category called “other.”

The CBO’s system of categorization is very defensible, but it can also lead to some poor reasoning. The report found that capital income—as defined on its terms, was very unevenly distributed; only the wealthiest Americans relied on it as a substantial source of income. It is important to remember this definition, though, and not conflate two ideas.

The first idea—that middle-class Americans don’t report many dividends or capital gains on their 1040s—is true. A second idea that would appear to follow logically—that middle-class Americans don’t earn substantial returns to capital—is false. Middle-class Americans just wisely put their capital in retirement accounts—where it enjoys a proper tax structure—instead of keeping the money out of retirement accounts and subjecting it to a poor tax structure.

Composition of Income Varies with Income Level

Chart 2.

A look at personal income by income bracket shows the importance of retirement income to the middle class (Chart 2). Retirement income is most important as a source of personal income—about 17 percent—for taxpayers reporting between $50,000 and $100,000 of income. In practice, of course, this means that a minority of middle-class taxpayers—the retirees—rely on this income quite a bit, while the majority, those of working-age, do not.

Retirement income is difficult to account for, and the tax rules governing retirement accounts are not readily obvious to people unfamiliar with tax data. While pensions aren’t critical to every analysis of personal income, it is worth remembering a few things: pension income is, in economic terms, mostly a kind of capital income; it is about as important as any other kind of capital income; and it is most important to middle-class workers due to its employer-based structure.


A walkthrough of personal income reveals many things about our tax code and our economy in general. Our personal income tax is largely a tax on labor, primarily because our personal income largely comes from labor. However, there are some varied sources of capital income in the mix as well. While these sources, even when combined together, are small compared to labor income, they are still significant and need to be accounted for well, both by policymakers trying to draw in revenue efficiently, and by economists or journalists attempting to understand the distribution of personal income.


Under 50,000$1,580$44$53$254

Appendix Table 1. Sources of Income by Income Bracket, 2013 (Billions of Dollars)
Wages and Salaries Business Income Investment Income Retirement Income
Source: IRS SOI Tax Stats, Individual Statistical Tables by Size of Adjusted Gross Income.
50,000 to 100,000 $1,738 $80 $62 $392
100,000 to 200,000 $1,666 $136 $95 $320
200,000 to 1,000,000 $1,145 $328 $189 $120
1,000,000 and Above $346 $320 $408 $9
Appendix Table 2. Sources of Income by Year, Billions of Current Dollars
Source: IRS, Table A. Selected Income and Tax Items for Tax Years, 1990-2012, in Current Dollars.
Income Type 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013
Wages and Salaries $4,922 $5,155 $5,469 $5,842 $5,951 $5,707 $5,837 $6,055 $6,301 $6,475
Taxable Interest $125 $162 $223 $268 $223 $168 $140 $120 $112 $101
Tax-exempt Interest $52 $58 $73 $79 $80 $74 $75 $73 $71 $68
Ordinary Dividends $147 $166 $199 $237 $219 $163 $184 $195 $260 $215
Qualified Dividends $111 $119 $137 $156 $159 $124 $136 $142 $204 $158
State Income Tax Refunds $23 $22 $24 $27 $28 $30 $27 $28 $27 $28
Alimony $7 $8 $8 $9 $9 $9 $9 $9 $9 $9
Sole Proprietorship $247 $270 $282 $280 $264 $245 $267 $283 $304 $302
Capital Gains $472 $663 $771 $896 $467 $231 $364 $375 $621 $483
Sale of Non-capital Property $3 $4 $4 $4 ($8) ($18) ($18) ($14) ($9) $1
Total IRA Distributions $131 $147 $166 $190 $216 $179 $291 $263 $272 $261
Taxable IRA Distributions $102 $112 $125 $148 $162 $135 $194 $217 $231 $214
Total Pensions and Annuities $628 $685 $781 $852 $845 $823 $881 $911 $975 $1,048
Taxable Pensions and Annuities $394 $420 $450 $491 $506 $523 $559 $581 $613 $639
S-corporation, Partnership, Rent, Royalty, Estate, Trust $357 $447 $466 $453 $418 $385 $446 $486 $613 $614
Farm ($13) ($12) ($15) ($15) ($15) ($14) ($12) ($10) ($6) ($8)
Unemployment Compensation $33 $28 $27 $29 $44 $84 $120 $92 $71 $52
Total Social Security Benefits $232 $252 $340 $382 $416 $457 $478 $491 $527 $554
Taxable social security benefits $110 $125 $144 $167 $168 $175 $191 $202 $224 $243
Gambling Earnings $23 $25 $28 $30 $27 $24 $25 $27 $29 $30
Other $23 $27 $30 $36 $34 $31 $35 $34 $37 $37
Total Personal Income $6,887 $7,532 $8,145 $8,811 $8,384 $7,739 $8,208 $8,498 $9,234 $9,234

[2] Id.

[3] There are limitations on using data from the 1040 to understand the nature of income in the U.S. economy. Not all economic activity finds its way to personal income tax forms—particularly, employer-provided health insurance and returns to owner-occupied housing are both substantial components of economic output that do not appear on income tax returns. As broad economic aggregates, though, the categories of income established on the 1040 are still useful and instructive.

[4] IRS SOI Table 1.3, supra note 1.

[5] Alan Cole, A Walkthrough of Gross Domestic Income, Fiscal Fact No. 467, Tax Foundation, May 20, 2015,

[6] Kyle Pomerleau, An Overview of Pass-through Businesses in the United States, Special Report No. 227, Tax Foundation, Jan. 21, 2015,

[7] IRS SOI Table 1.3, supra note 1.

[8] Id.

[9] William McBride, Federal Government Lost Money from 2013 Tax Increases on Investors, Tax Policy Blog, Tax Foundation, Jan. 29, 2015,

[10] Kyle Pomerleau, The High Burden of State and Federal Capital Gains TaxA capital gains tax is levied on the profit made from selling an asset and is often in addition to corporate income taxes, frequently resulting in double taxation. These taxes create a bias against saving, leading to a lower level of national income by encouraging present consumption over investment. Rate, Fiscal Fact No. 414, Tax Foundation, Feb. 11, 2014,, and Kyle Pomerleau, The United States’ High Tax Burden on Personal Dividend Income, Fiscal Fact No. 416, Tax Foundation, Mar. 5, 2014,

[11] IRS SOI Table 1.3, supra note 1.

[12] Congressional Budget Office, Trends in the Distribution of Household Income Between 1979 and 2007, Oct. 2011,


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