The tab is coming due for America's borrowing binge

Americans are facing a rising tab as a multi-decade borrowing binge collides with a spike in energy prices caused by the Iran war.

The big picture: Long-term interest rates are surging, as are consumer prices.

It's a toxic mix of near-term inflation pressures and years of fiscal imbalance.

Driving the news: The yield on the benchmark 10-year U.S.

Treasury note rose to 4.97% Friday, up a full percentage point since the end of February, and only a hair below its high since 2007.

The rate on a 30-year fixed-rate mortgage has risen in lockstep, reaching 7.08% Friday, per Mortgage News Daily — the highest in more than a year.

State of play: The immediate catalyst Friday was an inflation report that showed consumer prices surging higher in August, with gasoline prices accounting for more than a third of the gain.

Gasoline is now at a national average of $4.29 a gallon, while the price of diesel has climbed to over $6 a gallon.

All this means that the Federal Reserve is now expected to raise its target interest rate this week.

But longer-term borrowing rates are set in global markets — and determined by bigger forces.

The U.S. government is spending about $2 trillion a year more than it raises in taxes at a time the cumulative debt is already roughly 100% of a year's GDP.

Long-term bond yields have been rising worldwide, reflecting both high government borrowing and demand for capital from the AI buildout.

The intrigue: The recent spikes have taken place in spite of interventions by Treasury Secretary Scott Bessent to try to smooth turbulent bond markets — efforts that haven't succeeded in making borrowing cheaper.

And rather than focus on the deficit reduction the bond market wants, President Trump has floated the notion of $5,000 payments to all U.S. adult citizens if Republicans win midterm elections.