Oil and fuel costs are back on the rise
Oil is running hot again as the U.S.-Iran conflict escalates, and that flows straight into pump prices. U.S. crude settled above $105 a barrel on Tuesday, the highest close since mid May, even after Energy Secretary Chris Wright told CNBC a Saudi pipeline shutdown should last only a few days.
Drivers are already paying up. AAA says the average gallon of gas topped $4.32 on Tuesday, 6% higher than a month earlier and 36% above a year ago. Diesel has stung even more, with per-gallon prices above $6 in recent days and roughly 70% above the same day last year.
Economists warn those diesel costs can filter into prices for groceries and other goods. Travelers felt it too: Labor Day brought record-high holiday pump prices, and airfare has been one of the fastest risers in the CPI since the war began, up more than 23% in August from a year earlier, per the BLS.
Consumer sentiment is reflecting the squeeze. In September, a bit over 29% of University of Michigan survey respondents mentioned gas prices, compared with roughly 12% during September 2024 and around 6% in 2025. Deloitte estimates a 20% rise in crude can add roughly three tenths of a percentage point to inflation, before spillovers to categories like airfare or food.
The direct hit to household finances
Moody's Analytics estimates the conflict has cost the typical household around $1,760 through Sept. 11. Of that, $930 is from higher energy bills across gasoline, diesel, jet fuel and more. Another $425 is from the rise in interest rates since the war started.
The remaining $405 reflects increased military spending that households ultimately cover through more national debt or higher taxes. Cumulatively, Moody's finds Americans have paid over $121 billion extra for energy since the war began.
Moody's Analytics chief economist Mark Zandi put it plainly: "Consumers are under a lot of financial pressure." The pinch is sharpest for lower-income households that spend more of their pay on energy, feeding the K-shaped economy dynamic in which outcomes diverge by income tier. Government data for August shows inflation outpacing income growth again, leaving real earnings negative and purchasing power thinner.
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Borrowing costs climbed and are cutting buying power
The 10-year U.S. Treasury yield surged this week to its highest since 2007 as bond investors worry about inflation tied to the war and the government's growing debt burden. A market snapshot showed 4.967% at 10:18 AM EDT on Tuesday, down 0.029 on the day, and the benchmark is about one percentage point above where it was a year ago. When that barometer moves, so do consumer rates.
Mortgage costs are a prime example. This month, the average 30-year fixed mortgage rate crossed above 7% for the first time in over a year, moving in step with longer-term Treasurys since the war began. That has worsened the affordability crunch: the Atlanta Fed's home ownership affordability index fell to rarely seen lows this summer. "People experience higher interest rates much like they experience inflation," said Diane Swonk, chief economist at KPMG.
Households see the trend beyond mortgages. In July, 44% of respondents in the University of Michigan survey expected borrowing costs to rise over the next year, up 10 percentage points from a year earlier. A growing share also judged it an unfavorable moment to purchase a car, citing elevated rates and constrained credit.
Policy signals, savings, and what it means for your money
Rate expectations are firming up. CNBC's Fed Survey indicates most participants expect at least two hikes over the coming year. Derivatives tracking the policy rate place the probability above 92% that the Fed will raise rates at Wednesday's meeting, which would mark the first increase in more than three years.
The strain is showing up on balance sheets. Total credit card debt climbed to $1.26 trillion in Q2, near a record, according to the New York Fed. By 2026, the U.S. personal saving rate has dropped to levels seldom observed since the Global Financial Crisis.
That sets up a potential pullback in spending, a concern given consumption's outsized role in GDP. According to the Bureau of Economic Analysis, consumer spending increased 0.2% in July, easing slightly from the month before. "It's reflecting the times," Tilley said. "Costs have gone up and income growth has gone down, so something has got to give."
For your day to day, here is the bottom line: costlier fuel and higher interest charges leave less room in the budget, which can mean trimming extras and keeping a closer eye on monthly bills. Watching energy prices, the 10-year yield, savings trends, and spending data is how a far-off conflict shows up in your cart and on your loan statements.
Protecting your purchasing power starts with simple habits and a thoughtful investment approach. Our CEO Jaspreet Singh is hosting a FREE live investor workshop, How to Profit From A Dollar That's Losing its Value, on September 29th. Sign up free to join him live.
