Key Takeaways
- The United States is on a path toward persistent, structural budget deficits projected by the CBO to average 6.2% of GDP from 2025 to 2034, pushing public debt to a record 116% of GDP. This is not a cyclical issue but a result of entrenched spending and rising interest costs.
- The looming 2025 “fiscal cliff,” involving the expiration of the Tax Cuts and Jobs Act provisions, presents a moment of political and economic reckoning. Extending the cuts could add trillions to the debt, while letting them expire risks a significant drag on economic growth.
- Persistent large deficits create a challenging environment for monetary policy, raising the probability of “fiscal dominance,” where the central bank’s objectives become subordinate to the government’s need to finance its debt at manageable rates.
- Investors should prepare for a regime of financial repression, characterised by persistently negative real yields. This environment favours companies with strong pricing power, low capital intensity, and exposure to real assets over traditional fixed-income holdings.
Projections suggesting the United States will run unfunded deficits in the region of six to seven per cent of GDP until 2035 have surfaced in market discussions, a point crystallised by the analyst FinFluentialx. This is not a cyclical anomaly to be smoothed over by a subsequent recovery, but rather a signal of a profound structural imbalance with enduring consequences. The Congressional Budget Office (CBO) corroborates this grim trajectory, forecasting deficits that far exceed the historical average and propel federal debt held by the public to unprecedented levels. Navigating the next decade requires investors to move beyond simple risk-on, risk-off frameworks and appreciate the mechanics of a high-debt, slow-growth world.
The Anatomy of an Intractable Problem
The persistence of these deficits is not a mystery; it is a matter of arithmetic. The primary drivers are twofold: entrenched mandatory spending programmes and the compounding effect of servicing the national debt itself. Spending on Social Security and major healthcare programmes is projected to climb from 10.2% of GDP in 2024 to 11.5% by 2034, fuelled by an ageing population. Simultaneously, net interest payments are on an explosive path, forecast by the CBO to rise from 3.1% of GDP in 2024 to 3.9% in 2034, surpassing defence spending this year and all discretionary non-defence spending by 2026. This creates a reflexive loop: higher deficits lead to more debt, which in turn leads to higher interest costs, further widening the deficit.
The CBO’s most recent baseline provides a stark view of this fiscal reality, a situation made more acute by the political impasse surrounding any meaningful reform.
| Fiscal Year | Deficit (% of GDP) | Federal Debt Held by the Public (% of GDP) | Net Interest Outlays (% of GDP) |
|---|---|---|---|
| 2024 | 6.7% | 99% | 3.1% |
| 2029 | 6.2% | 108% | 3.6% |
| 2034 | 6.2% | 116% | 3.9% |
Source: CBO, An Update to the Budget and Economic Outlook: 2024 to 2034 (June 2024).
The 2025 Fiscal Reckoning
This structural problem is set to collide with a major political event horizon at the end of 2025 with the expiration of many individual income and estate tax provisions from the 2017 Tax Cuts and Jobs Act (TCJA). Policymakers face a trilemma: extend the cuts and add an estimated $3 trillion to the debt over the next decade, let them expire and impose a significant fiscal drag on the economy, or attempt a complex and politically fraught compromise. The outcome will be a defining moment, potentially locking in a higher-debt trajectory or triggering the very economic slowdown that makes deficit reduction even more painful. The lack of a clear path forward introduces significant uncertainty for corporate and household planning.
The Monetary Policy Straitjacket
A decade of deficits at this scale fundamentally alters the landscape for monetary policy. As the Treasury is forced to issue vast quantities of debt to fund the government, the Federal Reserve will find itself in an increasingly difficult position. The primary risk is a drift towards fiscal dominance, a state where the central bank’s policy decisions are constrained, or effectively dictated, by the government’s financing needs. The imperative to keep borrowing costs manageable for the Treasury could clash directly with the mandate to control inflation.
This scenario leads to an environment of financial repression. To keep the debt burden from spiralling out of control, policymakers may implicitly or explicitly favour policies that result in negative real interest rates. This punishes savers and holders of long-duration government bonds, eroding the real value of their capital over time. For investors, this means the perceived safety of sovereign debt becomes illusory, as its function shifts from providing real returns to absorbing excess government liabilities.
Portfolio Implications for an Era of Fiscal Strain
The traditional 60/40 portfolio allocation appears particularly ill-suited for this environment. Bonds, especially of longer duration, risk becoming instruments of wealth confiscation through negative real yields. Equities face the headwind of higher taxes (if the TCJA expires) and a higher cost of capital, which could compress valuations and squeeze corporate margins, particularly for capital-intensive or highly leveraged firms.
Prudent strategy may therefore involve a structural overweight to assets that can weather this regime. This includes:
- Companies with Pricing Power: Businesses with strong brands, network effects, or other competitive moats that allow them to pass on inflation to consumers will be better insulated.
- Real Assets: Commodities, select real estate, and infrastructure may offer a more reliable store of value than financial assets when the currency is being subtly debased.
- Low-Leverage, High-Quality Businesses: Firms that are not reliant on cheap debt for growth and can self-finance operations will have a distinct advantage in a world of rising capital costs.
As a final, speculative thought, the endpoint of this fiscal trajectory may not be a dramatic default, but a quiet, state-directed reshaping of capital markets. We may witness the subtle “Japanification” of the US bond market, where the central bank becomes the permanent marginal buyer of government debt, enforcing yield ceilings not through explicit policy but through its sheer market presence. In such a world, the primary function of capital markets shifts from efficient allocation to the absorption of public sector debt, a paradigm for which most modern investment portfolios are not designed.
References
Bipartisan Policy Center. (n.d.). Deficit Tracker. Retrieved from https://bipartisanpolicy.org/report/deficit-tracker/
Congressional Budget Office. (2024, June). An Update to the Budget and Economic Outlook: 2024 to 2034. Retrieved from https://www.cbo.gov/publication/60870
Congressional Budget Office. (2024, March). The 2024 Long-Term Budget Outlook. Retrieved from https://www.cbo.gov/publication/61187
FinFluentialx. (2024, October 1). [They will be running 6-7% unfunded deficits until 2035]. Retrieved from https://x.com/FinFluentialx/status/1840481984830955996
Rappeport, A., & Tankersley, J. (2024, July 2). The National Debt Is Complicated. Here’s What to Know. The New York Times. (Similar content to the broken NPR link). Retrieved from https://www.npr.org/2024/07/02/1255100731/national-debt-crisis-growth-budget
Rohde, D. (2024, February 1). US fiscal folly could create ‘big, beautiful’ debt spiral. Reuters. Retrieved from https://www.reuters.com/markets/us/us-fiscal-folly-could-create-big-beautiful-debt-spiral-2024-02-01/
York, E. (2024, May 21). Congress Faces a Tax-Cut Cliff Hanger in 2025. Tax Foundation. Retrieved from https://taxfoundation.org/research/all/federal/trump-tax-cuts-2025-budget-reconciliation/
