US Government Interest Payments to Tax Receipts, Average Interest Rate on the Debt, and Debt-to-GDP Ratio in Q3 2025

Update on a slightly less ugly situation.

By Wolf Richter for WOLF STREET.

[The only and possibly dubious benefit of having delayed the release of the Q3 National Accounts, including GDP, till December 23 is that we get to discuss the US fiscal mess in terms of tax receipts and GDP on Christmas Eve! And the situation looks a little less grim. Merry Christmas everyone!]

A crucial issue of the US government fiscal situation: What portion of tax receipts are eaten up by interest payments on the monstrous federal debt?

At the peak of the last fiscal crisis in the early 1980s, the ratio of interest-payments to tax receipts had exceeded a hair-raising 50%. It was a crisis because the 10-year Treasury yield was over 10% for six years in a row and went over 15% for a time; and the average 30-year fixed mortgage rate was over 10% for 12 years in a row and went over 18% for a time.

Tax receipts by the federal government jumped by $38 billion (+4.4%) in Q3 from Q2 and by $137 billion (+17.9%) year-over-year, to a record $902 billion. This includes $87 billion from net tariffs in Q3 (blue line in the chart below).

A growing economy generates more taxable income and higher tax receipts. Growing asset prices generate capital-gains taxes, but they’re very volatile. The year 2022 was lousy for stocks, and so tax receipts in Q1 and Q2 2023, when capital gains taxes for 2022 were paid, fell from the spike during the free-money pandemic years. And most of the tariff revenue is new, starting in Q2.

Interest payments by the federal government on its monstrous Treasury debt rose by $10 billion (+3.3%) in Q3 from Q2, to $300 billion (red in the chart below).

Interest payments don’t occur in a vacuum. They occur in the context of tax receipts – what’s there to pay for them.

This measure of tax receipts was released by the Bureau of Economic Analysis as part of its Q3 National Accounts data yesterday. It tracks the tax receipts that are available to pay for general budget expenditures, such as defense spending, interest payments, etc. Excluded are receipts that are not available to pay for general budget expenditures and are not included in the general budget, primarily Social Security and disability contributions that go into Trust Funds, out of which the benefits are then paid directly to the beneficiaries of the systems.

Tariffs are now a substantial contributor to tax revenues. In Q3, they added $87 billion to the tax receipts ($902 billion) that were available to pay for the interest expense and other general-budget expenses (chart through November, data via Monthly Treasury Statement):

Interest payments as a percent of tax receipts: Interest payments in Q3 ate up 33.2% of the tax receipts available to pay for them.

The ratio declined for the fourth consecutive quarter, driven down by the increase in tax receipts that outran the increase in interest payments.

The ratio was also helped by the average interest rate on the debt, which has remained roughly unchanged since mid-2024 – after surging in 2022 through early 2024 with the Fed’s rate hikes (Treasury bill rates) and QT (rates on long-term Treasury securities). More in a moment.

The recent high of the ratio occurred in Q3 2024, at 37.5%, which had been the worst ratio since 1996, when the ratio was already on the downtrend from the crisis times in the 1980s.

The magnitude and speed of this spike from the low point in Q1 2022 to Q3 2024 was unprecedented in modern US history:

The average interest rate on the Treasury debt — now much higher than the historic low at the beginning of 2022 of 1.58% — has stabilized since mid-2024, and in November was 3.35%, same as in July, according to Treasury Department data.

New interest rates enter the interest expense when old Treasury securities mature and are replaced with new securities at the new interest rate, and when additional Treasury securities are issued to fund the deficits.

The $6.7 trillion in Treasury bills (terms between 1 month and 12 months) are constantly getting rolled over as they mature. T-bill interest rates, as sold at auction, track the Fed’s expected policy rates. As the Fed cut its policy rates, the interest rate that the government paid to sell new T-bills fell – lower interest costs for the government, and lower yields for investors.

But longer-term securities by definition are slow to cycle out of the debt, so changes in long-term interest rates filter only slowly into the debt as old maturing debt is replaced with new debt that comes with the new interest rates.

The interest rates at which the government can sell long-term Treasury securities have lurched up and down over the past three years, but within a range.

For example, over those three years, 10-year Treasury notes were sold at auction with yields from 3.3% and 4.6%. At the most recent 10-year note auction on December 9, the yield was 4.175%, in the middle of that range.

The ugly Debt-to-GDP ratio: Total Treasury debt at the end of Q3 was $37.6 trillion – though it’s now already $38.4 trillion. Nominal GDP in Q3 jumped to $31.1 trillion annual rate, as per the GDP data yesterday (WHOOSH, Went the Economy in Q3. The Fed Needs to Watch Out, Economy Is Running Hot).

So the debt-to-GDP ratio rose to 121.0% in Q3. But the ratio for Q1 and Q2 had been held down by the effects of the debt ceiling, which prevented the debt from ballooning. In Q3, after the debt ceiling was raised in early July, the debt made up for it and spiked.

But the debt-to-GDP ratio was down a hair from Q4 2024 (121.3%).

The Debt-to-GDP ratio = total debt (not adjusted for inflation) divided by nominal GDP (not adjusted for inflation). Inflation cancels out because the inflation factor affects both the numerator and the denominator equally.

The long-term view is troubling. Each crisis causes the debt-to-GDP ratio to explode. But the recession in the early 2000s started a new trend: exploding the debt-to-GDP ratio without ever bringing it back down, not even a little bit, afterwards. It just kept rising until the next crisis, when it exploded again.

The lockdown during the pandemic was unique in that GDP collapsed and the debt exploded and the ratio when straight up in Q2 2020. As the economy reopened, and GDP bounced off, while the growth of the debt slowed somewhat to still very high growth rates, the ratio backed off but has remained in nosebleed territory.

Once upon a time, the debt-to-GDP ratio was below 40%:

A default on this debt is not in the cards. The US, by controlling its own currency, cannot default on debt issued in its own currency because it can always “print” itself out of trouble (Fed buys some of the debt).

But in an inflationary environment, printing money to service an out-of-control debt and deficit could cause inflation to spiral out of control, wreak havoc on the economy, and lead to years of wealth destruction and lower standards of living. Everyone knows this.

So the top option on the official wish list seems to be to trim the annual deficits a little – including through tariffs – to where economic growth (as per nominal GDP) and modest inflation (3%-5%) outrun the growth of the debt, which would gradually over the years whittle away at the problem. This wish list item assumes that no recession and no other crisis blow this scenario apart.

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WOLF STREET FEATURE: Daily Market Insights by Chris Vermeulen, Chief Investment Officer, TheTechnicalTraders.com.

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  4 comments for “US Government Interest Payments to Tax Receipts, Average Interest Rate on the Debt, and Debt-to-GDP Ratio in Q3 2025

  1. Wolf Richter says:

    Merry Christmas and Happy Holidays everyone!!!

    • George says:

      Merry Christmas Wolf and thanks for the interesting charts as always. I promise I read the article too!

  2. Glen says:

    Don’t even think a crisis is needed, just the continued rollout of AI. I’m not anti-AI, just anti not doing anything at the government level to address the implications. That said, there is no slowing it down, partly because it is the current economic catalyst and also that just not how we roll.

  3. Charlie says:

    Merry Christmas Wolf!

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