U.S. Manufacturers Frustrated by Inflation

U.S. Manufacturers are frustrated by inflation as sentiment dipped in August amid persistent price pressures and supply chain disruptions. The Institute for Supply Management's headline manufacturing index fell to 54.6% last month, down from 55.6% in July, according to a report released on Tuesday, September 1, 2026.

Despite marking the eighth consecutive month above the 50% threshold that indicates expansion, experts cited in the report warn that rising prices and new tariffs threaten future growth. One unidentified manufacturer in the chemical sector said the economy is getting in the way of otherwise good business.

Key Indicators Show Demand Slowing

Susan Spence, chair of the ISM manufacturing business survey, noted warning signs that customers are pulling back on spending. Key demand indicators like new orders, order backlogs, and imports saw large declines in August. Positive sentiment on employment also started to erode.

Spence said she observed many comments from manufacturers linking the slowdown directly to higher prices. She stated that after a few months where pricing volatility was calming down, it has now stagnated. Brian Bethune, an economist at Boston College, attributed the slower pace of expansion to the chaotic impact of rolling tariffs and the Iran war on supply-chain conditions and prices.

Persistent Inflation and Commodity Pressures

Price pressures remained widespread across the manufacturing sector. The report noted that fifteen out of eighteen industries reported price increases for the month. More than twenty commodities saw their prices rise in August, while only two declined.

Tom Simons, chief U.S. Economist at Jefferies, said the survey comments suggest the manufacturing sector is running fairly hot. The sustained inflation is influencing expectations for monetary policy. Jeffrey Roach, chief economist at LPL Financial, said the data explains why probabilities of a September interest-rate hike are rising from the Federal Reserve.

The Ripple Effects of Trade Tensions

The survey was conducted before the Trump administration imposed new 50% tariffs on Canadian goods, which triggered reciprocal tariffs from Canada. Susan Spence said the current conditions remind her of the previous year, when the manufacturing index stayed below 50% for ten straight months as customers just stopped buying due to tariff uncertainty.

Economist Brian Bethune explained the feedback loop created by these disruptions. Disrupted supply chains impact prices, but that price noise can then feedback to further disrupt supply chains and production, he said. One chemical manufacturer lamented struggling to compete as prices escalate due to things like tariffs and the conflict in the Strait of Hormuz, predicting inflation would eventually lead to lower sales.

The impact of the latest U.S.-Canada tariff exchange is expected to show up in next month's survey results.