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Tackling the $40 Trillion National Debt Would Boost Household Income by $36,000, New Analysis Finds — the Possible Silver Bullet for America's Affordability Crisis

A new report from the Committee for a Responsible Federal Budget argues that deficit reduction is the key to solving America's affordability crisis: with the national debt at $40 trillion, debt-to-GDP near 123%, inflation at 3.4% and the Treasury paying $3 billion a day in interest, stabilising the debt would lift real per-person income growth by 10% over three decades — nearly $36,000 per household versus a high-debt scenario — while a 1.5-point rate decline would save families $5,800 a year on a $500,000 mortgage.

Banking and credit illustration for the analysis of how the $40 trillion US national debt feeds into household borrowing costs and affordability
Banking and credit illustration for the analysis of how the $40 trillion US national debt feeds into household borrowing costs and affordability
AnalysisEconomy

Of all the numbers circulating in Washington this autumn, one has proved remarkably difficult for politicians of either party to discuss in front of voters: forty trillion dollars. That is the size of the national debt of the United States, a pile of obligations whose servicing cost is no longer a matter of conjecture, because the Treasury publishes its own data on interest payments for all to see. What has been far harder to pin down is the cost that this debt imposes not on the government's ledger but on households and individuals — the slower wage growth, the dearer mortgages, the more expensive car loans that never show up as a line item in any budget resolution. A new report from the Committee for a Responsible Federal Budget, the veteran fiscal watchdog better known by its initials CRFB, attempts exactly that calculation, and its headline finding is arresting: deficit reduction, the most politically thankless prescription in American economic policy, may be the single most effective answer to the affordability crisis that is dominating the run-up to the 2026 midterm elections. According to the committee's modelling, stabilising the national debt would boost household income by nearly $36,000 compared with a future in which borrowing keeps climbing.

The report lands at a moment when the cost of living has become, in the words of the Fortune article on which this analysis is based, a political lightning rod — first in the run-up to the 2024 presidential elections and again now, in 2026, ahead of the midterms. A July study from Pew Research showed that the economy was the top-of-mind issue for voters: 29% said they wanted to hear plans from Congressional candidates to address price increases, and a further 15% said affordability and the cost of living specifically were the key issues for them. Together, those responses describe an electorate in which more than two in five voters are telling pollsters, without being asked, that prices are the question they want answered. President Donald Trump, meanwhile, is under pressure to normalise global oil supply chains, which have been disrupted by the US–Iran conflict — a reminder that the affordability problem in 2026 has both a fiscal dimension and a geopolitical one, and that the two feed into each other.

The affordability headache and the debt behind it

The CRFB's argument begins from a distinction that is easy to miss in day-to-day political debate: the difference between the sticker size of the debt and the economic burden it places on the country. Debt hawks, as the report's framing puts it, argue that the raw value of US debt is not really their concern — it is the country's debt-to-GDP ratio that is the source of alarm. That ratio shows the balance between how much a country has borrowed and the size of the economy available to service the borrowing, and therefore captures the risk attached to lending funds to a government. On this measure the United States now stands at approximately 123% of GDP. The number matters not because 123 is a magic threshold — it is not — but because of the trajectory it implies. A ratio that keeps rising means that an ever-larger share of national income is absorbed by interest payments before a single dollar is spent on anything else.

And the interest bill is no longer abstract. The Treasury is spending $3 billion a day in interest on the national debt, a figure that translates the fiscal debate into a daily drain that would otherwise be available for public investment, tax relief or simply deficit reduction. It is against this backdrop that the committee makes its central claim: that there is a solution to the affordability headache, and that it sits squarely in the hands of Congress. Fiscal discipline, in the CRFB's telling, is not an austerity fetish but a mechanism for making everyday life cheaper for American families — through lower interest rates, through stronger income growth, and through a Federal Reserve that finds its inflation battle easier to win.

The inflation dimension deserves emphasis, because it is where the report's logic becomes most concrete. Inflation is currently running at 3.4%, well above the Fed's 2% target, as the committee notes. That single gap — 1.4 percentage points of persistent excess price growth — is the reason mortgage rates, auto loan rates and credit card rates remain punishing for households. The CRFB argues that fiscal policy can help close it. "When interest rates remain well above the zero lower bound and the economy is performing near its productive capacity, deficit reduction can reduce excess demand and slow price growth," the committee writes. In plainer terms: when the government borrows less, it sucks less purchasing power into the economy, aggregate demand cools at the margin, and the upward pressure on prices eases. This is not a partisan claim about the size of government; it is an observation about the arithmetic of demand in an economy that is already running close to capacity.

Crowding out, expectations, and the two channels of relief

The report identifies a second channel through which deficit reduction would help, and it runs through the supply side of the economy rather than the demand side. Borrowing less, the committee argues, would also boost supply, because it could reduce the "crowding out" of private investment. When the government issues debt on a colossal scale, it competes with businesses for the same pool of savings, and the resulting pressure on long-term interest rates makes it dearer for firms to finance factories, equipment, housing construction and technology. Reduce the government's claim on that pool and more capital flows to private investment — the very investment that expands productive capacity and, over time, wages. This is not a novel idea in isolation; it is an idea sources previously shared with Fortune in the context of Treasury Secretary Scott Bessent's latest bond plan, which suggests that the administration's own market-facing strategy is at least partly animated by the same logic.

The third channel is perhaps the most subtle and, in the long run, the most powerful: expectations. "Deficit reduction can further reduce inflation by lowering self-reinforcing inflation expectations to the extent it reduces the likelihood that future policymakers will aim to inflate away the national debt," the committee writes. This sentence contains the entire psychology of sovereign borrowing. If markets believe a government will eventually try to escape its debts by tolerating higher inflation — by inflating away the real value of what it owes — they will demand higher yields today as compensation, and those higher yields become a self-fulfilling prophecy of expensive credit and stubborn price growth. Credible fiscal discipline breaks the loop: it convinces lenders that inflation will not be used as a hidden default, which lowers the risk premium baked into rates across the economy.

To make the stakes tangible, the committee crunched the numbers on what households would actually save if inflation — and hence interest rates — came down. The scale of the per-family effect is striking:

These figures deserve a caveat that the report itself implies: they are illustrative of the interest-rate channel, not a promise that deficit reduction delivers exactly 1.5 points of rate relief on a fixed timetable. But illustrative or not, they reframe the debt debate. The typical political argument treats fiscal consolidation as a sacrifice that households make for the sake of abstract future stability. The CRFB's arithmetic inverts that: on its numbers, consolidation is something that pays households back, in lower monthly mortgage and loan bills, within the very period in which the affordability crisis is being fought.

The income factor: what stable debt is worth to a household

The report's boldest claim concerns not monthly bills but lifetime income. Using the modelling of the Congressional Budget Office, the CBO, the committee argues that stabilising the debt-to-GDP ratio would boost real per-person income growth by 10% over the next three decades, and by more than 44% compared with a high debt scenario in which the ratio keeps climbing rapidly. To put those percentages into dollars, the CRFB quotes the CBO's own figures: income per person would grow by $46,500 over the next three decades — in today's dollars — under a stable debt trajectory, as opposed to $32,350 under rapidly rising debt. On average, people would enjoy $14,250 more annual income from stable debt — nearly $36,000 per household — compared with the rising-debt path. That $36,000 figure, which gives the Fortune story its headline, is best understood not as a cash transfer anyone would receive but as the cumulative difference in living standards between two futures: one in which Congress eventually arrests the growth of borrowing, and one in which it does not.

Illustration of diverging household income paths under stable versus rapidly rising US public debt
Two debt trajectories, two income futures: the CRFB, using CBO modelling, puts the difference at nearly $36,000 per household over three decades.

The mechanism behind the income numbers is the crowding-out channel operating over a generation rather than a year. When public borrowing persistently absorbs savings, private capital formation is thinner than it would otherwise be; a thinner capital stock means less equipment, fewer structures and less technology per worker; and productivity — the ultimate source of real wages — grows more slowly. Three decades of slightly slower productivity growth compound into the $14,000-plus annual income gap per person that the CBO's modelling implies. Conversely, arresting the debt trajectory does not make anyone rich overnight; it raises the growth path along which every future year's income accumulates. This is why the committee frames deficit reduction as an affordability policy rather than merely a bookkeeping virtue: the affordability crisis of 2026 is, on this reading, partly the down payment on fiscal decisions taken years ago, and the incomes of the 2040s are being shaped by the deficits of today.

The counter-argument: Japan, growth, and the magic-number sceptics

No serious debt debate proceeds without the optimists' rejoinder, and the report acknowledges it squarely. Those on the more optimistic side of the debt argument suggest that the US debt-to-GDP ratio is healthier than that of other developed economies. The standard exhibit is Japan, which stands at around 207% of GDP according to the International Monetary Fund, without having suffered a bond market meltdown. If Tokyo has carried a ratio far above Washington's current 123% for years while its government borrows at manageable cost, the sceptics ask, why should 123% be a crisis for the world's reserve-currency issuer?

The comparison is instructive but imperfect, and the imperfections are worth spelling out because they define the real dispute. Japan's debt is overwhelmingly held domestically, its economy has lived with deflationary — not inflationary — pressures for most of the period in which its ratio climbed, and its bond market has been administered at times with extraordinary direct intervention. The United States in 2026 faces the opposite inflationary setting: prices are running at 3.4% against a 2% target, which means the Fed cannot simply be relied upon to keep borrowing costs artificially calm while deficits expand. The Japanese example shows that a very high ratio can be sustained under particular conditions; it does not show that any high ratio is costless under any conditions, and still less that it is costless in an economy where inflation is above target and interest payments already consume $3 billion a day.

The second strand of optimism is more political than comparative. Policymakers — including the president — suggest that the United States can grow its way out of the imbalance: if nominal GDP expands fast enough, the ratio stabilises without explicit austerity. Treasury Secretary Scott Bessent has made the point bluntly. "There's nothing magic about the $40 trillion number," Bessent said on CNBC last month, "And we can grow our way out of that." The growth-first position is not necessarily incompatible with the CRFB's; growth does mathematically lower a debt-to-GDP ratio, after all. But there is a crucial difference of emphasis, and it is exactly where the report's inflation logic bites. Growing out of a 123% ratio is far harder when the growth itself is hampered by the crowding out that heavy borrowing produces, and when the nominal growth that flatters the ratio is partly inflation — the very mechanism by which, in the committee's phrase, future policymakers might try to inflate away the national debt. Growth financed by tolerance of 3.4% inflation is, on this view, not an escape from the debt problem but a disguised version of it.

What the report means for the midterms — and for the Fed

Set against the electoral calendar, the CRFB's findings amount to an uncomfortable brief for both parties. For Republicans controlling the administration, the report says that the issue voters care about most — prices — has a legislative remedy in deficit reduction that Congress could begin to enact, and that the administration's own Treasury bond strategy already leans on similar reasoning about crowding out. For Democrats, it says that the affordability lightning rod they have been wielding points, on the fiscal watchdog's numbers, back at borrowing decisions rather than solely at oil supply chains or corporate pricing. Neither message is convenient in a midterm season, which is precisely why the Pew findings — 29% of voters wanting price-increase plans, 15% naming affordability as the key issue — make the report politically significant rather than merely technical. The electorate is asking for a plan; the committee has put one on the table; the question is whether anyone will pick it up before November.

For the Federal Reserve, the report's implications are subtler but no less important. A central bank fighting 3.4% inflation with rates well above the zero lower bound would normally welcome fiscal restraint as a force multiplier: every point of demand that deficits stop adding is a point the Fed does not have to squeeze out through higher borrowing costs. The CRFB's framing — that deficit reduction can slow price growth when the economy performs near its productive capacity — is, in effect, a statement that fiscal and monetary policy are currently working at cross purposes. If Congress does not act, the burden of restoring price stability stays where it is: on the interest-rate tool, and therefore on the very mortgage and car loan payments whose relief the committee quantifies at $5,800 and $500 a year respectively.

There is also the expectations channel to consider from the Fed's perspective. A credible multi-year deficit-reduction path would do something no single rate decision can: it would lower the market's estimate of the probability that future policymakers resort to inflating away the debt. That repricing would work through long-term yields — the rates that matter most for housing and business investment — without the Fed having to tighten further. In this sense the report is implicitly a document about the limits of monetary policy: it argues that the cheapest route back to 2% inflation runs through appropriations and tax committees, not through the central bank's meeting calendar.

Weighing the evidence

Analytically, the strongest element of the CRFB's case is its coherence with observable facts: inflation above target, a 123% debt ratio, $3 billion a day in interest, and an electorate that ranks prices first. Each of these is documented, not asserted. The weakest element — or rather, the least determinate — is the timing. The $5,800 mortgage saving depends on a 1.5 point rate reduction that deficit reduction might help produce; the $36,000 household income gain accrues over three decades of a stable-debt path. Voters experiencing an affordability crisis in 2026 are unlikely to be consoled by benefits that mature in the 2050s, which is the political trap at the heart of the report: its most robust numbers are its longest-dated ones.

The optimists' counter-case, meanwhile, is stronger on history than on current conditions. Japan's 207% ratio without a bond meltdown is a genuine fact, and growing out of imbalances is a genuine mechanism. But both propositions are weakened by the inflation setting of 2026: high-debt equilibria have been easiest to sustain when price growth was quiescent, and the United States today has a Fed explicitly battling 3.4% inflation while the Treasury pays $3 billion a day to service the existing stock. The dispute, in the end, is less about whether debt matters than about how quickly it matters — and the CRFB's contribution is to have priced the answer: about $14,250 of annual income per person, nearly $36,000 per household, over the next thirty years.

What happens next is in the hands of the institutions the report names. Congress controls the deficits; the Fed controls the policy rate; the Treasury controls the issuance strategy through which, as the Bessent bond plan discussions reported by Fortune suggest, the administration is already trying to manage the market impact of federal borrowing. The CRFB has not discovered a silver bullet in the sense of a costless one — deficit reduction remains, by definition, a political decision to tax more, spend less, or both. What it has done is put a household-level price tag on inaction, and in an election cycle defined by affordability, that price tag — $36,000 — may prove harder to ignore than the $40 trillion from which it derives. The original reporting on which this analysis is based was published by Fortune.

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