Ten-year Treasury yield tops 5% as federal interest costs pass a trillion dollars

The benchmark yield has crossed 5% for the second time in almost 20 years, just as annual interest on the federal debt clears $1.02 trillion.

Assembled by Claude from 9 sources at 8 outlets · Sunday, September 20, 2026, Morning edition, 10:13 AM EDT · no human byline

What happened

The 10-year Treasury yield has topped 5% for the second time in almost 20 years ground.newstheglobeandmail.comfinance.yahoo.com. It did so ahead of the Federal Open Market Committee meeting briefs.co. Shorter maturities are moving with it: two-year and three-year yields have spiked toward 5% while the 10-year holds at 5%, leaving the yield curve bulging in the middle ground.newswolfstreet.com.

The fiscal arithmetic underneath has moved in the same direction. Annual federal interest payments surpassed $1.02 trillion in the current fiscal year, and are projected by the Congressional Budget Office to reach $2.1 trillion by 2036 briefs.co. The federal government recorded a budget deficit of nearly $167 billion in August alone, taking the shortfall for the fiscal year to $1.97 trillion with one month still to run azfreenews.com. The national debt has passed $40 trillion, with spending on debt interest rising by 14% annually ua.news.

Why it matters to investors

The relationship between the two halves is the story. Since 2020, federal debt is up nearly 50%, but interest payments are up over 200% financialsense.com, because the stock is being refinanced at rates far above the ones it was issued at. That refinancing wall has been put at $9.5 trillion financialsense.com.

Deficit hawks warn about a self-reinforcing debt spiral in which larger interest payments force more borrowing briefs.co. Whether or not that spiral materialises, the mechanical effect on portfolios is immediate: a risk-free rate at 5% ground.newswolfstreet.com resets the discount rate applied to every other asset, and raises the bar that equity and credit returns must clear.

Treasury has not been passive. To alleviate market worries, Treasury Secretary Scott Bessent has implemented buybacks of long-dated Treasuries finance.yahoo.com. The market's attention has correspondingly shifted onto the Treasury market, the Federal Reserve, Kevin Warsh and Bessent himself theglobeandmail.com.

What to watch

The shape of the curve is the near-term tell. Two-year and three-year yields rising toward a 10-year that is holding at 5% ground.newswolfstreet.com is a different signal from a parallel shift, and it bears on where duration risk is being repriced.

The second is supply. With the fiscal-year deficit already at $1.97 trillion azfreenews.com and interest costs compounding at 14% a year ua.news, the volume of issuance meeting that 5% yield is the variable that decides whether the buyback programme finance.yahoo.com is enough to steady the long end.

Sources

1. azfreenews.com: U.S. Deficit Reaches $1.97 Trillion With One Month Left In Fiscal Year 2026 (2026-09-19)
2. ua.news: US national debt exceeds $40 trillion — Cyprus Mail | UA.NEWS (2026-09-20)
3. briefs.co: Federal Interest Costs Top $1 Trillion - Briefs Finance (2026-09-20)
4. briefs.co: 10-Year Treasury Tops 5% Ahead of FOMC - Briefs Finance (2026-09-19)
5. financialsense.com: The $9.5 Trillion Refinancing Shock: Are You Prepared for the Yield Spike? (2026-09-19)
6. ground.news: The 10-Year Treasury Yield Just Topped 5% for the Second Time in Almost 20 ... - Ground News (2026-09-20)
7. wolfstreet.com: Treasury Yields of 2 Years & 3 Years Spike toward 5%, but 10-Year Holds at 5%, Yield Curve Bulges (2026-09-20)
8. theglobeandmail.com: The 10-Year Treasury Yield Just Topped 5% for the Second Time in Almost 20 Years. Is This ... (2026-09-20)
9. finance.yahoo.com: The 10-Year Treasury Yield Just Topped 5% for the Second Time in Almost 20 ... - Yahoo Finance (2026-09-20)