The Stakes
Most rate-related claims about long-term debt plans soften with adjective: "ambitious," "challenging," "dependent on cooperation." The 10-year plan presented elsewhere on this site does not have that luxury. The math does not bend.
The plan operates at a specific rate — 1% — for a specific reason. Above the plan's break-even rate of approximately 1.85%, the debt grows mechanically regardless of how diligently the federal government runs operating surpluses. This is not opinion or forecast; it is arithmetic.
Both lines start at the same point: $39 trillion in 2026. The plan's revenue, spending, and buyout schedule is identical for both. Only the interest rate differs. At 1%, the plan converges to zero by 2069. At CBO's published baseline of 4.4% for the 10-year Treasury,1 debt grows past $100T by 2046 and continues climbing. There is no horizon at which the 4.4% trajectory pays off the debt.
The 1% target is not a preference. It is near the threshold of viability.
Break-Even Rate ≈ 1.85%
The mechanism is well-established sovereign debt arithmetic, often expressed as r vs g: when the average interest rate (r) exceeds the rate of nominal GDP growth (g), debt-to-GDP ratios grow over time regardless of operating surplus.
The plan's specific numbers, drawn from the Phase 2 schedule:2
- Year 10 operating surplus: $1.08 trillion
- Year 10 ending debt (under the 1% scenario): $58.4 trillion
- Break-even rate: surplus ÷ debt = $1.08T ÷ $58.4T ≈ 1.85%
At any rate below 1.85%, surplus exceeds interest expense and debt declines. Above 1.85%, interest exceeds surplus and debt grows. The 0.85 percentage points between 1% and 1.85% is the plan's entire margin of safety.
This is why the five-pillar case below matters. The pillars are not optional support for a generally achievable target — they are load-bearing arguments for staying below the threshold of viability. Each pillar has a specific job: keeping the U.S. effective borrowing cost below 1.85%, indefinitely.
The Five-Pillar Case
Pillar 1 — Japan Precedent
The strongest empirical comparable for a sovereign borrowing at low rates with high debt-to-GDP exists. Japan's general government gross debt stood at roughly 207% of GDP at the end of 2025,3 the highest of any advanced economy. The Bank of Japan held its policy rate at or below 1% throughout 25+ years and through current normalization — at 0.75% as of May 2026, with three of nine board members dissenting in favor of an immediate hike to 1%.4
Japan is not a controlled experiment. Its monetary regime, demographic profile, and capital flow patterns differ from the United States. But it is empirical proof that a developed-economy sovereign can sustain debt-to-GDP above 200% with policy rates below 1% — without default, without runaway inflation (Japan averaged near-zero CPI for most of this period), and with continued domestic and international demand for its sovereign debt.
The U.S. plan asks for less. Peak debt-to-GDP under the plan is roughly 150% — well inside the leverage Japan has carried for two decades. The plan's 1% target rate is not below Japan's recent normalization; it is right around it. Japan does not prove the plan will work. It proves the plan's preconditions are not absurd.
Pillar 2 — Default Risk Eliminated
A constitutional cap on federal spending to NST revenue eliminates one of the three components of sovereign yields: default risk premium. Yields on sovereign debt price three things — expected real growth, expected inflation, and the probability the borrower will fail to repay. The first two are macro variables; the third is a credit story.
Under the plan, default risk is structurally eliminated. Spending cannot exceed NST revenue. The government cannot run a deficit. There is no scenario in which the U.S. cannot service its debt — only scenarios in which the debt is paid off faster or slower.
The empirical comparable: Switzerland's 10-year sovereign bond yields 0.39% as of May 2026.5 Switzerland is not Japan; it is a small, fiscally conservative, AAA-rated sovereign. Its yields trade well inside larger sovereign markets because investors price its credit quality close to risk-free. The mechanism is not size or reserve currency status — it is fiscal discipline, transparently structured.
The plan asks the U.S. to behave more like Switzerland and less like itself. That is a political question, not an economic one.
Pillar 3 — Permanent Surpluses Compress Yields
Once the buyout is complete (Year 5), the federal government runs operating surpluses indefinitely. Two mechanical effects on long-term yields follow.
First: declining new supply. The Treasury's annual issuance falls sharply as financing needs collapse from $1.8T deficits to operating surpluses. At a constant level of demand, falling supply pushes prices up and yields down. This is not a behavioral argument — it is the standard supply/demand mechanic that governs all sovereign debt markets.
Second: improving credit quality. As gross debt declines and the constitutional spending cap holds, U.S. sovereign credit migrates from the current AAA-with-fiscal-risk profile toward unambiguous AAA — closer to the Swiss profile cited above. Credit migration of one notch is associated with sovereign yield reductions of 30–50 basis points in normal markets.
The late 1990s saw both unified federal surpluses (1998–2001) and falling long-term Treasury yields, though the academic literature attributes the yield decline to multiple factors including disinflation and global savings flows.6 The 1990s aren't a clean controlled experiment, but they're consistent with the mechanism.
Pillar 4 — Fed Cooperation Aligns with Mandate
The most common objection at this point: "the President cannot dictate Fed policy." Correct. The plan does not require coercion of an independent central bank. It requires the Fed to do what its dual mandate already directs it to do.
The Federal Reserve has two statutory objectives: price stability and maximum employment. Persistent fiscal surpluses are deflationary — they remove demand from the economy through net withdrawal of household income (taxes minus transfers, with no offsetting deficit spending). When fiscal policy runs contractionary, monetary policy must run accommodative to offset, holding aggregate demand stable. This is not a policy choice; it is the dual mandate applied.
This is not hypothetical. The Fed has historically responded to fiscal contraction with rate accommodation. It accommodated the deflationary pressure of the late-1990s budget surpluses with falling Fed Funds rates through 1995–1998. It accommodated the post-2008 fiscal contraction with extended near-zero rates and quantitative easing through 2015. Sister central banks have done the same: the BoJ has accommodated Japanese fiscal positions for 25 years; the ECB has accommodated euro-area fiscal contraction repeatedly since 2010.
The plan does not require new Fed behavior. It requires the Fed to behave the way it has behaved every prior time fiscal policy turned materially contractionary. That is not a guarantee — but it is the central tendency, not the exception.
Honest concession: this is the weakest link in the chain. If the Fed declines to accommodate — perhaps because it judges the inflationary risk of structural rate suppression to outweigh the deflationary fiscal contraction — the plan's effective borrowing cost rises, and the rate-sensitivity scenario in Counterargument 5 below applies.
Pillar 5 — Global Demand for Treasuries
U.S. Treasuries are the world's deepest, most liquid sovereign debt market. They serve as the global reserve asset because no alternative has the necessary depth. The IMF's COFER data tracks this directly: as of Q4 2025, U.S. dollars constitute 56.77% of allocated official foreign exchange reserves7 — more than the next four currencies combined.
The structural source of this demand is not behavioral, it is liquidity. A central bank holding $500 billion in reserves needs an asset class that can absorb that position without moving the market. The Treasury market can. The Bund market is roughly one-third the size. The JGB market is comparable in size but largely held domestically. The CNY sovereign market is constrained by capital controls. Treasuries remain the only sovereign asset class that scales to global reserve flows.
This demand is partially price-insensitive. Reserve managers do not buy Treasuries primarily for yield — they buy them for liquidity, store of value, and operational utility (FX intervention, trade settlement, international banking). At lower yields, demand is reduced but does not disappear, because the alternative venues cannot absorb the flow.
The empirical fragility of this pillar — gradual erosion of USD share over decades — is engaged in Counterargument 4 below.
The Counterarguments
1. "Suppressed rates fuel inflation"
Steelmanned objection: artificially low rates in a developed economy fuel inflation through cheap credit, asset bubbles, and currency depreciation. Japan's 30-year experience with low rates has occurred in a fundamentally deflationary economy; the U.S. is not Japan. The Fed's post-2008 zero-interest period was associated with substantial financial asset inflation — even as goods inflation remained contained — and a recurrence under the plan is plausible.
This is real. Persistent low rates can fuel asset prices and risk-taking. Goods inflation under loose policy can return when supply-side constraints emerge.
The plan's response: low rates under contractionary fiscal policy are net-restrictive, not net-expansionary. Monetary stimulus + fiscal contraction = ambiguous to negative net effect on aggregate demand. The Fed retains short-end rate-setting authority and inflation-targeting tools throughout. If goods inflation accelerates above target, the Fed responds with conventional tightening — which under the plan's debt level still means rates substantially below historical norms.
The plan does not require artificially suppressed rates. It requires risk-premium compression, which is a credit-quality story driven by structural elimination of default risk. This is a different mechanism than monetary suppression, and it does not fight the Fed's price-stability mandate.
2. "You cannot dictate Fed policy"
Steelmanned objection: the FOMC sets monetary policy independently of the Treasury and Congress. No fiscal plan can compel the Fed to maintain accommodative posture or to purchase long-duration Treasuries indefinitely. Pillar 4 dresses up wishful thinking in the language of mandate.
Correct on the institutional point. The plan does not assume coercion. It assumes the Fed responds to fiscal contraction with policy accommodation, as it has every prior time fiscal policy turned materially contractionary. The case is structural, not personal: the Fed's mandate is to stabilize aggregate demand, and a fiscal contraction at the scale the plan implies removes demand the Fed is required by statute to offset.
Honest failure mode: if the Fed declines to accommodate sufficiently — perhaps because internal forecasters disagree on the deflationary magnitude, or because political pressure runs the other direction — the plan's effective borrowing cost rises, and Counterargument 5 applies. The plan is sensitive to Fed behavior. It is not sensitive in a way that requires institutional rewrite.
3. "Markets will demand higher yields"
Steelmanned objection: even if the Fed cooperates, marginal investors in the Treasury market will not accept 1% yields when comparable safe assets (Bunds, JGBs) yield more, or when alternative assets (equities, corporates) offer better risk-adjusted returns. New issuance will clear at higher yields. The plan's 1% target is unrealistic for primary market pricing.
This objection has weight. Even if the average rate paid on outstanding debt is 1% — through a combination of Fed accommodation, credit-quality compression, and refinancing of legacy higher-coupon debt — new issuance prices reflect marginal investor demand, set by global yield curves.
The plan's response: yields decompose into expected real growth + expected inflation + default risk premium + term premium. The plan addresses default risk premium directly (constitutional cap → near-zero). It addresses term premium through reduced supply (surpluses → declining issuance) and through Fed long-end accommodation. Real growth and inflation expectations are macro variables the plan does not control directly, but they determine the floor.
If real growth is 2% and inflation is 2%, the natural floor for risk-free yields is around 4%. The plan asks for 1% — substantially below this floor. The honest answer: the plan requires either (a) real growth + inflation at unusually low levels, (b) the default risk premium going negative as investors pay a premium for the safety position, or (c) Fed long-end suppression that overrides the natural yield floor. Some combination of all three.
This is the gap the plan makes its hardest case in. It is not impossible — Switzerland's 10-year at 0.39% suggests the floor can be lower than expected when credit quality is right5 — but it is the most contested assumption.
4. "USD reserve share is eroding"
Steelmanned objection: IMF COFER data shows USD share of allocated official reserves declining from 64% in Q1 2017 to 56.77% in Q4 20257 — a sustained 7-percentage-point loss over eight years. If this trend continues, the structural Treasury demand cited in Pillar 5 weakens. By 2050, USD share could be below 50%. By 2069 (the plan's payoff year), the "global demand at any yield" framing may no longer apply.
This is the strongest empirical objection on this page. The trend is real, sustained, and directly contradicts a static reading of Pillar 5.
The plan's response engages the alternatives. Each major reserve currency faces structural problems that limit its ability to absorb the flows the USD currently does:
| Currency | Q4 2025 share7 | Structural constraint |
|---|---|---|
| USD | 56.77% | Status quo; the alternative each other currency below is competing against |
| EUR | 20.25% | No single "Euro Treasury" instrument; sovereign debt fragmented across 19 issuers; ECB faces legal constraints on perpetual monetization of sovereign debt |
| JPY + GBP + AUD + CAD + CHF (combined) | 14.90% | Each individually under 5%; markets too small to absorb global reserve flows even if combined intent existed |
| CNY | 1.95% | PBOC capital controls; CNY not freely convertible; political risk premium; insufficient market depth |
Even at 50% USD share, Treasuries remain the dominant reserve asset by a wide margin, with the next currency (EUR) at less than half the share. The marginal substitution from USD into other currencies is bounded by structural limits on the alternatives. The erosion is real, but slower-bound than naive trend extrapolation suggests.
Honest concession: the plan operates in the same multi-decade timeframe as USD reserve erosion. If the trend continues at recent pace, by 2069 USD share could be in the 45–48% range. This reduces but does not eliminate structural Treasury demand. Yields face upward pressure from reduced demand, partially offsetting the downward pressure from the plan's other mechanisms. The five pillars do not collapse — they get harder.
5. "What if rates don't fall to 1%?"
The honest answer: the plan as constructed does not pay off debt at any rate above its break-even (~1.85%). At 4.4% — CBO's baseline 10-year Treasury projection1 — the plan's revenue-spending schedule produces an annual cash flow gap of $2–3 trillion by Year 10 and growing thereafter. Debt rises mechanically, as shown in the chart in Section 1. There is no horizon at which the plan-as-designed converges at 4.4%.
This does not mean the plan is impossible at 4.4%. It means the plan would need to be a fundamentally different plan, not the same plan with a longer timeline. Adaptive measures that could keep debt-to-GDP declining at 4.4%:
- NST stays at 10% indefinitely — no reduction to 7% at Year 10 or 5% at Year 30, abandoning the post-debt-free tax-reduction promise
- Defense reduced from 3% of GDP to 2% (matching post-Cold-War lows; below current NATO commitments)
- All-other-government reduced from $200B to $150B
- Accept rising debt-to-GDP for the first decade, with surplus growth gradually catching up to interest expense as nominal GDP compounds
Modeled with these adjustments, the plan converges at 4.4% — but slowly. Debt peaks around $140 trillion in the mid-2070s, then declines as surplus growth (compounding with nominal GDP at 3.5%) eventually overtakes interest growth (compounding with debt at 4.4%). Debt-free arrives around 2115 — roughly 46 years after the 1% scenario's 2069 target, not 20.8 The plan retains its core thesis — 10% NST replaces all federal taxes, entitlements bought out and sunset, debt eliminated — but on a fundamentally different schedule. 2115 is not 2069 plus interest delay. It is a 46-year extension that requires NST locked at 10% indefinitely, defense permanently below NATO commitments, and absolute debt rising for nearly fifty years to a peak of $140 trillion in 2075.
The choice between "plan @ 1% works as designed" and "plan @ 4.4% requires structural revision" is not abstract. It is the central uncertainty this page exists to make explicit. The five pillars argue for the 1% scenario being achievable. They are not certainties. If they fail, the plan can still pay off debt — but on a different schedule, with different sacrifices, and at a different cost to the operating budget.
Bottom Line
The 1% target rate is not a hope. It is a specific quantitative threshold backed by Japanese precedent (200%+ debt-to-GDP at sub-1% rates for 25 years), structural elimination of default risk under the plan's constitutional spending cap, Fed cooperation aligned with the dual mandate, and continued global demand for the deepest sovereign debt market in the world.
The plan's break-even rate is approximately 1.85%. If realized rates land at or below that threshold, the plan converges as designed — debt-free by 2069. If realized rates land 100–200 basis points above target (in the 2–3% range), the plan still converges, but the timeline extends and the operating budget tightens. If rates land at CBO's baseline of 4.4% or above, the plan as designed does not converge — adaptive measures detailed in Counterargument 5 are required, and the plan becomes structurally different.
The five pillars are not certainties. They are the strongest available case that the U.S. effective borrowing cost can stay below the plan's break-even threshold for long enough to retire the debt. Each pillar has been steelmanned against its strongest objection on this page. None has been concealed.
If the pillars hold, the plan converges by 2069. If they don't, the plan can still pay off the debt — but on a different schedule, with different sacrifices, and at a different cost to the operating budget. That choice is the actual choice this page exists to make explicit.
Sources & Footnotes
- Congressional Budget Office, The Budget and Economic Outlook: 2026 to 2036 (February 2026). 10-year Treasury rate projection: 4.1% (2026) → 4.3% (2027) → 4.4% average (2031–2035), driven by rising debt levels and term premium expansion. cbo.gov/publication/61882. ↩
- Break-even rate calculation: from the Phase 2 schedule on the 10-Year Plan, Year 10 operating surplus is $1.08T and Year 10 ending debt under the 1% scenario is $58.4T. The break-even rate is the rate at which interest expense exactly equals operating surplus: r = surplus ÷ debt = $1.08T ÷ $58.4T ≈ 1.85%. Above this rate, with the plan's revenue and spending profile held constant, debt grows monotonically. ↩
- International Monetary Fund, World Economic Outlook database (general government gross debt as % of GDP, Japan): 236.7% in 2024, ~207% in 2025. Japan remains the most indebted advanced economy. imf.org/external/datamapper/profile/JPN. ↩
- Bank of Japan, Statement on Monetary Policy, April 28, 2026: uncollateralized overnight call rate held at 0.75%, six-to-three vote with three members (Takata, Tamura, Nakagawa) dissenting in favor of an immediate hike to 1.00%. The BoJ held rates at or below zero for most of the period from 1999 through early 2024 (ZIRP, QE, QQE, NIRP regimes); recent normalization has brought the rate to 0.75% as of May 2026, still under 1%. boj.or.jp/en/mopo/mpmdeci/mpr_2026/k260428a.pdf. ↩
- Switzerland 10-year government bond yield, May 2026: 0.39%, eased from an over-eight-month high of 0.45% in early April. As an empirical comparable for "low yields under fiscal discipline," Switzerland trades well inside larger sovereign markets — the mechanism is credit quality, not size or reserve currency status. tradingeconomics.com/switzerland/government-bond-yield. ↩
- Brookings Institution, A Surplus, If We Can Keep It: How the Federal Budget Surplus Happened; Federal Reserve staff working paper, Why Have Long-term Treasury Yields Fallen Since the [Late 20th Century]? (2024). The late-1990s unified budget surpluses (1998–2001, peaking at $237B in FY2000) coincided with declining long-term Treasury yields, but the academic literature attributes the yield decline to a combination of disinflation, global savings flows, and changing inflation expectations rather than the surplus position alone. The 1990s remain a relevant historical reference, not a clean controlled experiment. brookings.edu · federalreserve.gov. ↩
- International Monetary Fund, Currency Composition of Official Foreign Exchange Reserves (COFER), Q4 2025: U.S. dollar share of allocated reserves at 56.77% (down from 56.93% in Q3 2025); EUR 20.25%; CNY 1.95%; combined JPY+GBP+AUD+CAD+CHF 14.90%. Total global reserves: $13.14T. Note: starting Q3 2025, IMF eliminated the "unallocated" portion with restated history back to 2000; current series allocates 100% of reserves. data.imf.org/en/datasets/IMF.STA:COFER. ↩
- Adaptive-measures model at 4.4%. Parameters: NST locked at 10% indefinitely (no taper to 7% at Year 10 or 5% at Year 30); defense at 2% of GDP (vs 3% in the existing schedule); all-other-government at $150B (vs $200B); Phase 1 buyout schedule unchanged; nominal GDP growth 3.5%/yr (CBO baseline range); interest rate 4.4% (CBO 2026 LTBO 10-year Treasury baseline). Recurrence: debt(t+1) = debt(t) × 1.044 − surplus(t), with surplus(t) ≈ 4% of GDP(t) − $150B. Milestone debts ($T): 2026: 39 · 2031 (post-buyout): 70 · 2036: 79 · 2046: 98 · 2056: 118 · 2069: 137 · 2075 (peak): 140 · 2081: 134 · 2091: ~98 · 2106: ~32 · 2115: ~0. The model intentionally uses the most generous adaptive-measures assumption to show that even under best-case parameters, the revised plan takes ~46 years longer than the 1% target. ↩