
America’s interest payments on its national debt will soon eclipse every other budget category, doubling to $2.1 trillion by 2036 and potentially spiraling the economy into crisis.
Story Snapshot
- Net interest costs jump from $970 billion in FY2025 to over $2.1 trillion by FY2036, the fastest-growing federal expense.
- Debt held by the public surges 86%, average rates rise 16%, driving deficits beyond primary shortfalls.
- Post-FY2031, rates may exceed GDP growth, triggering a debt spiral without reforms.
- Interest already outpaces defense and Medicaid, crowding out priorities and hitting households with higher costs.
- Past borrowing traps the U.S. in a self-reinforcing cycle, demanding fiscal restraint aligned with conservative principles.
Timeline of Escalating Interest Costs
Pre-2020 debt grew steadily, but pandemic borrowing tripled interest costs by 2025. FY2022 saw interest double amid rising debt and rates. FY2024 payments hit $1.13-$1.22 trillion, surpassing defense at $954 billion and Medicaid at $618 billion.
FY2025 baseline stands at $970 billion, or 3.3% of GDP, the second-largest expense after a 14% rise. This trajectory sets the stage for explosive growth.
Interest on US debt is becoming a top driver of future deficits, as the sheer size of past borrowing overwhelms the fiscal outlook https://t.co/vhDqXqtGfg
— Scott Odenbach (@ScottOdenbach) May 3, 2026
CBO Projections Reveal Alarming Growth
Congressional Budget Office’s February 2026 baseline forecasts FY2026 interest exceeding $1 trillion, a 7% jump and 13% year-over-year increase. Costs double to $2.1 trillion by FY2036, reaching 4.6% of GDP as debt-to-GDP nears 120%.
Debt held by the public grows 86% to over $52 trillion, with rates up 0.5 percentage points. Interest becomes the budget’s fastest-growing part, outpacing all else.
Primary deficits exceed 50-year averages, but total deficits balloon higher due to interest. By 2036, sustained shortfalls persist through 2056 as interest and Medicare overwhelm revenues. Bond markets now enforce discipline through elevated rates, exposing congressional gridlock.
Historical Roots of the Debt Explosion
Post-WWII debt peaked at 120% of GDP in 1946, unwound by growth and inflation. Modern surge began with 1980s deficits, accelerated by 2008 crisis borrowing, and exploded with $5 trillion-plus COVID stimulus in 2020-2021.
Debt held by the public rose from $20 trillion in 2019 to projected $52 trillion by 2036. Fed rate hikes since 2022 elevated long-term rates further.
2020-2021 fiscal actions added 3 percentage points to inflation via demand pressures. Interest now surges 13-14% yearly as debt rises 6.4% annually. This structural trend differs from episodic crises, positioning interest as the dominant deficit driver over entitlements or discretionary spending.
Stakeholders and Power Struggles
Congressional Budget Office delivers baseline projections. Committee for a Responsible Federal Budget analyzes data, warning of doubling costs. Bipartisan Policy Center tracks deficits, naming interest the top growth driver.
Federal Reserve influences rates via models assessing debt-inflation links. EPIC for America highlights interest exceeding most nations’ GDPs and defense spending.
Nonpartisan watchdogs like CBO, CRFB, and BPC push fiscal restraint. Fed battles inflation but risks fiscal dominance. Congress controls spending and taxes yet gridlock sustains deficits. Treasury issues debt; the President proposes reforms to autopilot programs. Bond markets wield ultimate power through rates.
Household and Economic Toll Mounts
Short-term, FY2026 interest rises $69 billion, crowding out investment and lifting mortgage and car rates by $600-$1,240 per household yearly, adding $200-$3,400 to loans. Households lose $1,250 in disposable income; businesses face reduced capital. Taxpayers see 73% of budget locked in autopilot plus interest.
Long-term, post-2031 debt spiral looms if rates top growth. Debt-to-GDP exceeds 120%; inflation risks climb 0.3-0.76 percentage points, growth slows, wealth drops 2% or $24,000 per household.
Housing faces 23-85 basis point mortgage hikes; defense and health get crowded out. Reforms align with conservative values of responsibility and limited government.
Sources:
Deficit Tracker – Bipartisan Policy Center
Net Interest Costs Will Double, Again, Over the Next Decade
Inflationary Risks from Rising Federal Deficits and Debt
The Budget and Economic Outlook: 2026 to 2036
Interest Payments on the Debt Outpace Most Countries’ GDPs














