Consumer prices kept climbing at a stubborn pace in August, with the annual inflation rate holding steady at 3.4% from the prior month, according to Bureau of Labor Statistics data released Friday. Economists surveyed in the report flagged a cluster of shocks — a widening Middle East conflict, Trump administration tariffs, and artificial intelligence-driven demand — that they expect to keep squeezing household budgets in the months ahead.
“You’ve got a lot of shocks that are pushing up inflation and making it uncomfortably high,” Mark Zandi, chief economist at Moody’s, told CNBC.
The reading lands as Treasury yields have climbed to multiyear highs, pushing up borrowing costs on mortgages and auto loans just as the Federal Reserve prepares to meet next week. Several economists said the hotter-than-expected print makes a rate hike the likely outcome, a move aimed at cooling the economy and steering inflation back toward the central bank’s 2% annual target — a level it has exceeded for more than five years.
“There’s a lot riding on this CPI report as far as the Fed is concerned,” said Thomas Ryan, a North America economist at Capital Economics, who described the risks to inflation as “definitely skewed” to the upside. “We’re not really convinced we’re heading back to 2%, at least over the next six months or anytime soon.”
An energy shock with no end in sight
The Iran war is the single biggest factor behind August’s numbers, economists said. The conflict has throttled oil flows through the Strait of Hormuz, a critical maritime chokepoint, crimping global energy supplies. Hostilities have since broadened, threatening routes including the Strait of Bab el Mandeb, which links the Red Sea and the Gulf of Aden.
“The conflict is a major energy shock to the global economy,” said Joe Seydl, a senior markets economist at J.P. Morgan Private Bank. “If the conflict never happened this year, I don’t even really think we’d be talking about inflation with much interest.”
Brent crude jumped back above $100 a barrel this week for the first time since mid-May. At the pump, gasoline averaged about $4.30 a gallon on Friday, up from $3.19 a year earlier, according to AAA. Gasoline prices rose nearly 4% during August and more than 27% year over year, and the fuel accounted for over a third of the month’s total CPI increase, the BLS said.
Diesel is drawing even more concern. Prices hit a record $6 a gallon on Friday, and economists warn that cost will ripple through trucking, farming and freight before showing up on store shelves.
“It impacts the cost of hauling and trucking and farming equipment, which eventually flows through supply chains and finds itself in higher prices on the shelves for food, broader goods,” Ryan said.
Jet fuel costs have similarly lifted airfare, which climbed nearly 3% in August and more than 23% since August 2025. Economists also flagged that large volumes of fertilizer transit the Strait of Hormuz, a dynamic that could push global food prices higher.
How far the energy shock spreads depends largely on how long the war lasts — a conflict that crossed the six-month mark at the end of August and, in Seydl’s view, “continues to get worse and not better.”
Chips, consoles and cars
Energy isn’t the only culprit. The AI build-out has tightened supplies of the computer chips used in data centers, and manufacturers rely on those same components for laptops, video game consoles and newer vehicles. Apple raised prices on MacBooks and iPads in June, citing surging memory and storage costs, while Microsoft followed with an Xbox price increase for similar reasons.
“This is starting to feed through to higher prices for households, too, not just data centers,” Ryan said.
Tariffs remain a secondary but persistent contributor. Zandi said the import taxes “feel like they’re still bleeding through” into consumer goods, though Seydl said they no longer appear to be the primary driver. The Supreme Court struck down a central piece of Trump’s tariff policy in February, but the administration is pursuing alternative legal avenues to keep duties in place.
Source: www.cnbc.com — https://www.cnbc.com/2026/09/11/cpi-inflation-breakdown-august-2026.html
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