Number of Americans Paying Zero Federal Income Tax Grows to 43.4 Million

Fiscal Fact No. 54

With the April 17th deadline for federal tax returns looming, Americans are sharply aware of their federal income tax liabilities. However, one aspect of federal income taxes they may not be aware of is the growing number of Americans who pay zero federal income tax after taking advantage of deductions and credits.

During 2006, Tax Foundation economists estimate that roughly 43.4 million tax returns, representing 91 million individuals, will face a zero or negative tax liability. That's out of a total of 136 million federal tax returns that will be filed. Adding to this figure the 15 million households and individuals who file no tax return at all, roughly 121 million Americans—or 41 percent of the U.S. population—will be completely outside the federal income tax system in 2006.1 This total includes those who pay no tax, and those who pay some tax upfront and are later refunded the full amount of the tax paid or more.

Who Are the Non-Payers?
Using IRS data, we are able to create a profile of these individuals who are outside the federal income tax system. As Table 1 shows, those who file as single or head-of-household are much more likely to be non-payers. One-third of single filers pay nothing in federal income taxes, and almost two-thirds of those who file as head of household pay nothing. In contrast, just 22 percent of married filers are non-payers.

Why do many single filers face zero tax liability? One reason is that single filers tend to be younger and earn lower incomes than married filers—especially single parents who file as head-of-household. As a result, married taxpayers pay roughly 75 percent of all federal income taxes, despite filing only 40 percent of returns.

Table 1. Projection of Filing Status of Non-Payers, Tax Year 2006  

Filing Status

Percent of Returns in Filing Status That Are Non-Payers

Percent of All Non-Payers Who Are in Filing Status

Single

33.1%

42.2%

Married filing jointly

21.5%

29.8%

Married filing separately

21.6%

1.2%

Head of household

65.7%

26.6%

Source: Internal Revenue Service, Tax Foundation.

Non-Payers by State  
The number of Americans who face zero federal income tax liability varies widely by state. Table 2 illustrates the number of projected non-payers for 2006 by state. There are two primary reasons why some states have a disproportionate share of non-payers. First is that average household income varies by state, and those with lower-than-average incomes will have a larger share of non-payers. Second, some states have a high number of single parents—who typically file as head-of-household—whose tax liabilities are reduced through tax credits such as the $1,000 per child tax credit and the Earned Income Tax Credit. The estimates in Table 2 do not take into account the likely increase in the number of non-payers in Gulf Coast states as a result of Hurricanes Katrina and Rita.

Table 2. Residents of Some States are More Likely to Pay Zero Federal Income Tax than Others (2006 Estimate) 

Number of Returns Filed
Returns with Zero or Negative Tax Liability
Percentage of Returns in Each State with Zero or Negative Tax Liability
Rank by Percentage of "Non-Payers"
U.S. Total
135,660,228
43,362,718
32%
-
Alabama
1,945,483
734,157
38%
5
Alaska
354,271
71,740
20%
50
Arizona
2,360,197
776,590
33%
18
Arkansas
1,158,262
439,675
38%
3
California
15,668,908
5,105,168
33%
20
Colorado
2,147,160
613,696
29%
35
Connecticut
1,707,972
408,945
24%
48
Delaware
401,010
105,916
26%
44
Florida
8,106,717
2,782,600
34%
13
Georgia
3,830,840
1,363,353
36%
10
Hawaii
610,450
177,201
29%
32
Idaho
596,861
209,808
35%
12
Illinois
5,910,250
1,810,128
31%
26
Indiana
2,908,813
885,744
30%
27
Iowa
1,368,283
393,833
29%
34
Kansas
1,258,504
393,007
31%
24
Kentucky
1,797,892
599,028
33%
17
Louisiana
1,941,234
777,004
40%
2
Maine
635,244
182,943
29%
33
Maryland
2,687,104
696,489
26%
45
Massachusetts
3,151,680
749,325
24%
49
Michigan
4,695,299
1,411,601
30%
28
Minnesota
2,461,914
630,657
26%
46
Mississippi
1,207,967
516,757
43%
1
Missouri
2,647,896
834,018
31%
22
Montana
447,726
162,773
36%
7
Nebraska
829,008
253,951
31%
25
Nevada
1,078,230
306,409
28%
36
New Hampshire
655,447
157,466
24%
47
New Jersey
4,215,850
1,148,262
27%
39
New Mexico
840,391
318,744
38%
4
New York
8,871,365
2,838,370
32%
21
North Carolina
3,801,408
1,299,289
34%
14
North Dakota
312,334
92,486
30%
30
Ohio
5,622,504
1,588,793
28%
37
Oklahoma
1,508,808
547,112
36%
8
Oregon
1,623,370
510,012
31%
23
Pennsylvania
5,960,865
1,760,123
30%
31
Rhode Island
514,381
136,883
27%
42
South Carolina
1,863,934
667,601
36%
9
South Dakota
369,160
121,027
33%
19
Tennessee
2,649,084
901,139
34%
15
Texas
9,603,456
3,575,431
37%
6
Utah
1,001,586
354,270
35%
11
Vermont
312,110
87,224
28%
38
Virginia
3,544,201
945,257
27%
41
Washington
2,900,573
771,846
27%
43
West Virginia
768,830
260,437
34%
16
Wisconsin
2,674,696
714,104
27%
40
Wyoming
248,894
74,394
30%
29
D.C.
284,676
80,853
28%
-

Note: Figures do not take into account the likely increase in Gulf Coast non-payers resulting from 2005 hurricane damage.
Source: Internal Revenue Service, Tax Foundation.

Large Number of Non-Payers Make Tax Reform Difficult
Federal tax reform requires that the base of the federal income tax be widened, so that overall tax rates can be reduced. However, because of the large number of Americans currently paying zero federal income tax, any attempt to broaden the tax base will be a difficult sell for lawmakers. The millions of Americans who have no federal income tax liability will either be indifferent about tax reform or will positively oppose it, as it would require bringing them into the federal tax base.

The Effect of Recent Tax Cuts on Non-Payers
As President Bush pushed through his two major tax bills in 2001 and 2003, opponents focused on the dollar amounts saved by high-income individuals. What many critics have ignored is the number of people who were removed from the tax rolls as a result of the expansion of the child tax credit, which was a key provision of the President's Economic Growth and Tax Relief Reconciliation Act of 2001.

As Figure 1 illustrates, the number of tax returns with zero or negative tax liability has risen steadily over the past decade. However, it accelerated sharply between 2000 and 2004 due to the effects of tax changes during President Bush's first term of office. (For a detailed demographic profile of "non-payers," click here.)

Figure 1. Percent of Tax Returns with Zero or Negative Tax Liability, 1950 to Present

Source: Internal Revenue Service, Tax Foundation.  

Conclusion
These findings raise serious questions about the future of the U.S. income tax system, and the possibility of base-broadening tax reform when the majority of the federal tax burden is borne by a shrinking pool of taxpayers. As Congress considers tax reform proposals during the coming year, this is an issue lawmakers should begin to debate.

Footnotes
1. Those who are claimed as dependents on a tax return with positive tax liability are defined as “in the tax system.”

 

For more information, contact our press office at (202) 464-6200 or TF@TaxFoundation.org.

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