Finance

Why Borrowing Is Getting More Expensive Right Now

Marcus SterlingPublished 2month ago2 min readBased on 10 sources
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Why Borrowing Is Getting More Expensive Right Now
source:treasury.gov

The rate on 10-year U.S. government debt was 5.119%, up 0.6 basis points, after touching 5.14% on Wednesday, a 19-year high, according to Tradeweb. Wall Street Journal A basis point is a tiny unit, one-hundredth of a percent. Think of the yield as the rent the government pays to borrow money for 10 years.

On September 11, 2026, that 10-year rate was at 4.96% amid multi-year highs. Reuters That day it stayed below 5% after news showed core consumer prices grew faster than expected. Core means without food and energy. Wall Street Journal

The 2-year rate rose 11.4 basis points to 4.891% after hitting 4.947%, the highest since May 2024. Reuters On September 25, 2026, AFP reported U.S. and Japanese bond rates had hit multi-year highs, with the U.S. 10-year at its highest since 2007. AFP

In September 2026, the Federal Reserve raised its main rate by 25 basis points to a range of 3.75% to 4.00%. Reuters Its dot plot of officials' forecasts showed a middle guess of one more hike in 2026. Reuters The forecasts showed the rate reaching 4.00% to 4.25% by the end of 2026. Reuters

Those numbers depend on math rules. The Treasury defines its daily par yield curve as par yield by length of loan, based on closing bid prices for newly sold securities. Treasury Its archive posts par curve rates, bill rates, long-term rates, real par curve rates, and real long-term rates. Treasury Its daily page had curve data for Thursday, September 24, 2026. On December 6, 2021, it switched to a monotone convex spline method and dropped the quasi-cubic Hermite spline method. Treasury

The broader context here is the split between what is set and what is guessed. The hike to 3.75% to 4.00% is done. The middle guess of 4.00% to 4.25% is published. The market rates near 4.891% and 5.119% are where buyers and sellers agreed to take rate risk. For savers, that can lift interest on new bonds. For borrowers, it can lift home and business loans.

In my view, care is needed on both sides. Holding near 4.96% below 5% on strong price news, then jumping to 5.14%, looks like a change in Fed bets, not one report. The 2-year top at 4.947% leaves the gap to the 10-year still positive but easy to move on talk of that last 25 points. A 19-year high alone does not prove high rates will last, and one middle dot does not set December. Treat 5.14% and 5.119% as September 24 snapshots.