Foreign Debt Holdings Are a Trade Deficit Problem, Not Just a Fiscal One
Foreign holdings of U.S. Treasury securities totaling $9.2 trillion are routinely discussed as if they were primarily a debt management problem — a question of who holds U.S. paper and under what conditions they might sell it. That framing is incomplete. By the logic of national income accounting, foreign holdings of U.S. federal debt are inseparable from the U.S. trade deficit, and any serious discussion of the former has to grapple with the latter.
The accounting identity is mechanical but often overlooked in policy debate. Domestic saving — the sum of household, business, and government saving — plus net borrowing from abroad equals domestic investment. When the federal government runs a deficit, government saving falls, reducing total domestic saving. If domestic investment does not fall by the same amount, the gap must be filled by borrowing from abroad. Borrowing from abroad, in turn, requires the United States to run a current account deficit — which means buying more imports than it sells in exports. The trade deficit is not a separate pathology that happens to coincide with foreign debt accumulation. It is the mechanism through which foreign debt accumulation occurs.
The United States has borrowed from abroad in excess of $300 billion annually every year since 2000. In 2025, net borrowing from abroad was $1.1 trillion, down modestly from $1.2 trillion the prior year. That capital inflow, flowing into both U.S. government and U.S. private securities, is the counterpart of a trade deficit of comparable scale. Foreign purchases of Treasury securities are one channel through which the saving-investment imbalance expresses itself; foreign purchases of corporate bonds, equities, and real estate are others. The label on the asset differs; the underlying dynamic is identical.
This has a direct implication for policy. Absent capital controls that would be difficult to enforce in practice — Treasury securities are traded on diffuse secondary markets internationally, and a domestic ban on foreign purchases would almost certainly migrate activity offshore rather than eliminate it — there is no effective way to reduce foreign holdings of Treasuries without reducing the underlying fiscal deficit. The trade deficit, which finances that foreign investment, would also need to fall. These adjustments are not independent: a smaller fiscal deficit, all else equal, raises domestic saving, reduces the need for foreign borrowing, and narrows the current account deficit. The linkages run in both directions and are subject to feedback effects that make clean linear predictions difficult.
CRS is direct about this in its analysis. The only durable mechanism for reducing U.S. reliance on foreign borrowing is raising the domestic saving rate, most directly achieved by reducing budget deficits. The caveat — that reducing deficits too quickly can be counterproductive if it undermines economic growth, particularly during recessions — reflects genuine uncertainty about timing and sequencing. Fiscal consolidation in a weak economy reduces private sector income, potentially lowering private saving and offsetting part of the government saving improvement. The net effect on total national saving is ambiguous in the short run.
The longer-run picture is less ambiguous. The United States has maintained a net foreign debt since 1989. That net position reached roughly $27.5 trillion in 2025. Debt growing faster than GDP is, by definition, unsustainable on an indefinite basis. The CRS report notes that thus far the foreign debt has not imposed a net burden on Americans — the United States has historically earned more on its foreign assets than it pays on its foreign liabilities, a function of the dollar’s reserve currency premium and the composition of U.S. overseas investment — but acknowledges that this favorable position is unlikely to persist indefinitely.
The $9.2 trillion in foreign Treasury holdings is a symptom. The trade deficit is a mechanism. The fiscal deficit is the originating condition. Treating any one of these in isolation, without acknowledging how the accounting connects them, produces analysis that is technically accurate at the level of individual figures and structurally misleading about causation. Washington has been doing exactly this for decades.