Invest1 publisher2 min readPublished
Federal debt service now costs eight times what corporate borrowers pay as a share of GDP
The federal government is on track to spend about $970 billion servicing its debt in fiscal 2025. The whole gap between that burden and corporate America's is attributed to when each side refinanced.
The Investor · Invest desk

What happened
- Federal interest outlays have passed national defense spending to become the second-largest line in the budget, behind only Social Security.
- Net interest costs have climbed to 3.6% of GDP and are projected to reach 4%, a share of output last seen a decade ago.
- Corporate America's interest burden moved the other way over the same period, down to 0.4% of GDP.
- The Congressional Budget Office and the Government Accountability Office have both called the trajectory unsustainable under current policy, with net interest reaching 4.6% of GDP by 2036.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- contradiction The same account prices fiscal 2025 net interest at 3.6% of GDP in one paragraph and 3.2% in another. Those imply economies of $26.9 trillion and $30.3 trillion, so the multiple against corporate borrowers is eight or nine depending on which you accept.
- cost At the larger implied economy, 4.6% of GDP in 2036 is about $1.39 trillion of interest, roughly $420 billion a year more than now, payable by whoever holds the tax bill or loses the appropriation.
- constraint Interest is a claim on the budget that nobody votes on each year, so the room to fund stimulus or public investment in the next downturn shrinks as the coupon grows.
- exposure If foreign demand for Treasuries keeps softening, clearing the issuance falls to domestic buyers at whatever yield they require, and that yield lands back in the interest line.
Take the larger of the two implied economies and the corporate side of this comparison comes to about $121 billion, because 0.4% of $30.3 trillion is $121 billion [17]. Against roughly $970 billion of federal interest [1], that is a ratio of eight, rising to ten at the projected 4% share [16]. Both halves are measured against national output, so the comparison tells you what each borrower's coupon costs the country, though not how hard either one finds the payment.
cryptobriefing.com wrote that the Treasury "fumbled its refinancing window" while corporate America locked in cheap pandemic-era debt, and that "taxpayers are now footing the bill" [21]. The publication credits Torsten Slok, chief economist at Apollo Global Management, with flagging the asymmetry as one of the most consequential fiscal dynamics now running [8]. The sequence it describes is short. Rates sat near zero through 2020 and 2021. Corporate treasurers locked fixed and extended maturities [5] while the Treasury kept rolling short-duration securities [6]. Then the 2022 hiking cycle repriced that short book [7]. The article does not include the Treasury's average maturity for either year. The claim therefore rests on the direction of two ratios and not on a dollar figure for the duration decision, and it fails outright if the profile did lengthen materially across those two years.
One percentage point on 3.6% is a 28% increase in the share of output going to debt service [19]. The route there runs through the loop the article sets out: deficits require issuance, interest widens deficits, and heavier issuance can lift yields [13].
The three exits it names are higher tax revenue, spending cuts, or growth fast enough to shrink the debt-to-GDP ratio [13]. In my view leaving duration off that list is correct: extending maturities in 2026 buys long bonds at 2026 yields, and the saving that was on offer in 2020 cannot be bought back. The corporate half of the comparison is the testable half. Most large borrowers pushed maturities out several years, and many will not meet higher rates until 2026 or 2027 [12]. If the 0.4% share [3] has not climbed by the end of that window, the timing explanation was wrong.
What to watch
- Fiscal 2026 interest crossing the trillion-dollar line, which the account projects it will.
- Whether Treasury refunding schedules shift issuance toward longer maturities at today's yields.
- Any CBO or GAO revision to the 4.6%-of-GDP path for 2036 if tax or spending policy changes.