Order Code RS22331
Updated March 14, 2007
Foreign Holdings of Federal Debt
Justin Murray
Information Research Specialist
Knowledge Services Group
Marc Labonte
Specialist in Macroeconomics
Government and Finance Division
Summary
This report presents current data on estimated ownership of United States Treasury
securities and major holders of federal debt by country. Federal debt represents the
accumulated balance of borrowing by the federal government. To finance federal
borrowing, United States Treasury securities are sold to investors. Treasury securities
may be purchased directly from the Treasury or on the secondary market by individual
private investors, financial institutions in the United States or overseas, and foreign,
state, or local governments. Foreign investment in federal debt has grown in recent
years, prompting questions on the location of the foreign holders and how much debt
they hold.
Federal debt represents, in large measure, the accumulated balance of federal
borrowing of the United States government. The portion of gross federal debt held by the
public consists primarily of investment in U.S. Treasury securities.1 Investors in the
United States and abroad include official institutions such as the United States Federal
Reserve, financial institutions such as private banks, and private individual investors.
Table 1 provides December 2006 data, available as of March 2007, on estimated
ownership of U.S. Treasury securities by type of investment and the percentage of that
investment attributable to foreign investors.2
1 Figures on federal debt held by the public are available on the Department of Treasury Bureau
of Public Debt website, “The Debt to the Penny and Who Holds It,” at
[http://www.treasurydirect.gov/NP/BPDLogin?application=np], visited on Mar. 14, 2007.
2 This report discusses foreign holdings of U.S. federal debt. Foreign investors also hold U.S.
private securities. For data on foreign holdings of U.S. private securities, see “Survey of Foreign
Holdings of U.S. Securities,” at [http://www.ustreas.gov/tic/shlhistdat.html], produced by the
(continued...)

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As the table shows, during the past five years, foreign holdings of the public debt
have increased more than the total privately held debt has increased. Foreign holdings of
debt increased by $1.17 trillion to more than $2.2 trillion from December 2001 to
December 2006. During the same period, total privately held debt increased by $1.3
trillion to $4.12 trillion.
In December 2001, total foreign investment in U.S. federal debt was just over $1
trillion (37.3%) of the total $2.8 trillion in privately held debt. By December 2006, total
foreign investment in U.S. federal debt grew by 17 percentage points to approximately
$2.225 trillion (54.0%) of all debt held by private investors.3
Table 1. Estimated Ownership of U.S. Treasury Securities
(in billions of dollars)
Foreign holdings as a
Total public debt
share of total
End of
held by all private
Total debt held by
privately-held public
month
investors
foreign investors
debt
Dec. 2006
$4,122.1
$2,225.0
54.0%
Dec. 2005
$3,970.6
$2,036.0
51.3%
Dec. 2004
$3,690.6
$1,853.4
50.2%
Dec. 2003
$3,377.9
$1,533.0
45.4%
Dec. 2002
$3,018.5
$1,246.8
41.3%
Dec. 2001
$2,819.5
$1,051.2
37.3%
Source: Table OFS-2: Estimated Ownership of U.S. Treasury Securities from the March 2007 Treasury
B u l l e t i n .
S e e l i n k f o r “ O w n e r s h i p o f F e d e r a l S e c u r i t i e s ” t a b l e s a t
[http://www.fms.treas.gov/bulletin/index.html]. Data in the table above represent estimated figures current
as of March 14, 2007. For the most current data, connect to the link listed above. Percentage shares
calculated by CRS.
Notes: Although gross federal debt is the broadest measure of the debt, it may not be the most important
one. The debt measure that is relevant in an economic sense is debt held by the public. This is the measure
of debt that has actually been sold in credit markets and has influenced interest rates and private investment
decisions. This table reflects that portion of public debt held by all private investors in federal securities and
the portion of that debt held by foreign investors. See CRS Report RL31590, The Federal Government
Debt: Its Size and Economic Significance
, by Brian Cashell.
2 (...continued)
Treasury Department International Capital System.
3 Data are excerpted from Table OFS-2 in the March 2007 Treasury Bulletin. Table OFS-2
presents the estimated ownership of U.S. Treasury securities. Information is primarily obtained
from the Federal Reserve Board of Governors Flow of Funds data, Table L209. State, local, and
foreign holdings include special issues of nonmarketable securities to municipal entities and
foreign official accounts. They also include municipal, foreign official, and private holdings of
marketable Treasury securities.

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Data on major foreign holders (investors) of federal debt by country are provided in
Table 2. According to the data, the top three estimated foreign holders of federal debt by
country, ranked in descending order as of December 2006, are Japan ($644.3 billion),
China ($349.6 billion), and the United Kingdom ($239.1 billion). Based on these
estimates, Japan holds approximately 29.0% of all foreign investment in U.S. privately
held federal debt; China holds approximately 15.7%; and the United Kingdom holds
approximately 10.8%.
Table 2. The Top 10 Foreign Holders of Federal Debt, by Country
(Data current as of March 14, 2007)
Percentage of
Percentage of
all foreign
all foreign
In billions of dollars
holdings in
In billions of dollars
holdings in
(as of December 2006)
federal debt
(as of December 2001)
federal debt
Japan
$644.3
29.0%
Japan
$317.9
30.6%
Mainland
$349.6
15.7%
Mainland
$78.6
7.6%
China
China
United
$239.1
10.8%
Germany
$47.8
4.6%
Kingdom
Oil Exporters
$100.9
4.5%
Hong Kong
$47.7
4.6%
Korea
$70.0
3.1%
Oil Exporters
$46.8
4.5%
Carribean
$68.0
3.1%
United
$45.0
4.3%
Banking
Kingdom
Centers
Taiwan
$63.1
2.8%
Taiwan
$35.3
3.4%
Hong Kong
$53.9
2.4%
Korea
$32.8
3.2%
Germany
$52.5
2.4%
Carribean
$27.6
2.7%
Banking
Centers
Belgium-
Brazil
$52.1
2.3%
$22.4
2.2%
Luxembourg
Total Top 10
Total Top 10
Countries of
Countries of
Foreign
$1,693.4
76.2%
Foreign
$701.9
67.5%
Investors in
Investors in
Federal Debt
Federal Debt
Total All
Total All
Foreign
Foreign
$2,223.5
100%
$1,040.1
100%
Investment in
Investment in
Federal Debt
Federal Debt
Source: The Treasury Department International Capital System provides data on estimated foreign holders
of federal debt historically by month on its website at [http://www.treas.gov/tic/mfhhis01.txt]. Current
monthly estimates are available at [http://www.treas.gov/tic/mfh.txt]. Data, including historical data, in
these Treasury Department tables are periodically adjusted. Data in the table above represent estimated
amounts current as of March 14, 2007. For the most current data connect to the link listed above.
Percentage approximations calculated by CRS.
Note: Percentages may vary slightly due to rounding.

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Foreign investment as estimated by the Treasury Department can be divided into
official (governmental investment) and private sources. Figure 1 provides data on the
current breakdown of estimated foreign holdings in U.S. federal debt. As the figure
shows, 59.3% of foreign holdings in U.S. federal debt are held by governmental sources.
Private investors hold the other 40.7%.
Figure 2. Breakdown of Official vs. Private
Foreign Holdings of U.S. Federal Debt
(billions of $)
59.3%
$1,317.5
40.7%
$906
S o u r c e : T r e a s u r y D e p a r t me n t I n t e r n a t i o n a l C a p i t a l S ys t e m, a t
[http://www.treas.gov/tic/mfhhis01.txt]. Data in the chart above represent estimated figures
current as of March 14, 2007. Data in these Treasury Department tables are periodically
adjusted. For the most current estimates, click on the URL address listed above.
Notes: The estimated combined total of all foreign holdings for December 2006 was $2,223.5
billion. Data consist of reported December 2006 figures from the Treasury Department
International Capital System [http://www.treas.gov/tic/mfh.txt], visited on March 14, 2007.
The breakdown between estimated official and private holdings is not publically available on
a country-by-country basis. Percentages approximated by CRS.
Foreign Investment in U.S. Federal Debt:
Why Is It an Issue of Concern?

Foreign ownership of federal debt has become a growing concern among some
Members of Congress because of the nation’s large and rising trade deficit. During the
past three decades, U.S. national saving has not been adequate to finance its capital
investment needs and borrowing from abroad has covered the gap. In order for foreigners

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to invest in the U.S. economy on net, the United States must import more than it exports
(run a trade deficit). When the government runs a budget deficit, as it has done since
2002, it reduces the national saving rate. This implies that domestic investment must fall,
unless private saving rises or borrowing from abroad increases.4
As seen in Table 1, as the national debt has increased, foreign ownership of U.S.
Treasuries has followed closely, suggesting that the budget deficit has been financed, in
part, through borrowing abroad. By June 2004, foreigners held more than 50% of the
public debt held by private investors for the first time. Although this percentage has no
particular economic significance, it may have other significance.
Since 2002, some observers have been concerned that the nature of foreign purchases
of U.S. Treasuries has changed. Beginning in that year, a large and growing fraction of
the trade deficit was financed through official purchases of U.S. assets, such as purchases
by foreign central banks. Although no direct data on official purchases of Treasuries by
country exist, one can infer that the Treasuries may have been purchased by certain Asian
countries because they were the only countries that had large increases in their foreign
reserves during that period. Japan, China, Taiwan, Korea, and India had the largest
increases in total foreign reserves (including non-U.S. assets) from 2002 to 2005.
Although the effect on the U.S. economy of official purchases of Treasuries is the same
as private purchases, the motivations behind the purchases are different. Whereas private
purchases are typically motivated by the profit incentive, official purchases may be
motivated by a country’s desire to keep its exchange rate constant or mitigate its rise
against the dollar.5 Many observers are concerned that the large fraction of national debt
held by foreigners has the potential to be harmful to the U.S. economy. Specifically, they
fear that if foreigners suddenly decided to stop holding U.S. Treasury securities or decided
to diversify their holdings, the dollar could plummet in value and interest rates would rise.
Others are concerned that China’s accumulation of hard currency assets will allow it to
undertake activities in the foreign affairs and military realms that are not in the U.S.
interest.
When foreigners purchase U.S. Treasuries, or any other U.S. asset, the interest rate
is lower than when borrowing is financed domestically out of national saving. Thus,
when overall interest rates are lower as a result of net capital inflows, more interest-
sensitive spending is undertaken. Interest-sensitive spending includes capital investment
(e.g., production plants and equipment), residential investment (e.g., new homes), and
durable consumption goods (e.g., automobiles and appliances). On the other hand, U.S.
foreign borrowing induces a trade deficit by reducing exports and import-competing
production. The trade deficit occurs because foreigners must first purchase U.S. dollars
before purchasing U.S. assets. When the demand for dollars increases, the dollar
appreciates, making U.S. exports and import-competing goods relatively more expensive.
4 CRS Report RS21409, The Budget Deficit and Trade Deficit: What Is Their Relationship? by
Marc Labonte and Gail Makinen.
5 See CRS Report RS21951, The U.S. Trade Deficit: Role of Foreign Governments, by Marc
Labonte and Gail Makinen.

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Thus, foreign borrowing shifts production out of the trade sector and into the interest-
sensitive sector.6
Selected CRS Reports
CRS Report RS21409, The Budget Deficit and Trade Deficit: What Is Their
Relationship? by Marc Labonte and Gail E. Makinen.
CRS Report RL31590, Federal Government Debt: Its Size and Economic Significance,
by Brian W. Cashell.
CRS Report RL33723, Growth in Foreign Holdings of Federal Debt, by Philip Winters.
CRS Report RL30520, The National Debt: Who Bears Its Burden? by Marc Labonte and
Gail E. Makinen.
CRS Report RS20645, Recent Changes in Federal Debt and Its Major Components, by
Philip D. Winters.
CRS Report RL31032, U.S. Trade Deficit: Cause, Consequences, and Cures, by Craig
K. Elwell.
CRS Report RS21951, The U.S. Trade Deficit: Role of Foreign Governments, by Marc
Labonte and Gail E. Makinen.
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6 CRS Report RL31032, The U.S. Trade Deficit: Causes, Consequences, and Cures, by Craig
Elwell.