US Debt Heads Toward 175% of GDP as Chinese Yuan Hits 3-Year High and Dollar Rebounds

• US debt is projected to climb to 175% of GDP within 30 years, according to the Congressional Budget Office, highlighting growing concerns over the country’s long-term fiscal outlook
• The Chinese yuan has strengthened more than 9% against the US dollar over the past four months, reaching its strongest level since January 2023
• The dollar’s recent rebound adds another layer to the currency story, as investors weigh inflation, potential Federal Reserve policy moves and the widening US debt burden

The scale of America’s fiscal problem is becoming harder for markets to ignore. US debt held by the public is already around the size of the economy, while currency markets are sending a very different set of signals. The Chinese yuan has climbed sharply against the dollar in recent months, even as the US dollar has started to recover. Behind those moves is a number that could become very difficult for investors to overlook.

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US Debt Could Reach 175% of US GDP Within 30 Years

The Congressional Budget Office expects federal debt held by the public to rise from 101% of US GDP in 2026 to 120% by 2036. Over the longer term, the projection gets considerably steeper, with debt reaching 175% of GDP by 2056 under current law.

This trajectory matters because carrying a larger debt load also means paying more to service it. CBO estimates net interest outlays will rise from 4.6% of GDP in 2036 to 6.9% by 2056, eventually exceeding projected spending on both Social Security and Medicare.

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Chinese Yuan Is Moving Higher

The fiscal picture is unfolding alongside a notable move in the Chinese yuan. Market data cited by Barchart shows the yuan has gained more than 9% against the US dollar over the past four months, reaching its strongest level against the greenback since January 2023.

The move puts another currency into focus at a time when investors are reassessing the dollar’s outlook and the relative strength of the world’s two largest economies.

It should be noted that the US dollar is hardly sitting still. The dollar index was up about 0.3% for the week after falling 0.8% the previous week. Hotter-than-expected July inflation has strengthened expectations that US rates could remain restrictive through the end of the year.

Traders now see roughly a 70% chance of at least a 25-basis-point Fed hike by December, according to Reuters. This creates an interesting split for markets. The US dollar still has support from relatively strong US growth and interest-rate expectations. Meanwhile, the long-term US debt outlook raises questions about fiscal credibility.

Currently, investors are balancing those two forces. The 175% US GDP debt projection is years away, but the market is already watching how rising borrowing needs, Treasury yields and currency demand interact.

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