US import prices up 1.1% in September: how to read it

Prices of goods coming into the United States rose 1.1 percent in September, and prices of goods leaving the country rose 2.2 percent, according to the Bureau of Labor Statistics. Both readings were faster than in August. This article looks at what these two lesser-known indexes measure, how they sit beside consumer inflation, and why they matter over a span of years rather than days.

The September release

The Bureau of Labor Statistics reported that its import price index went up 1.1 percent in September 2026, after a 0.5 percent increase in August. Export prices climbed 2.2 percent, following a 1.2-percent rise the month before.

The yearly picture is larger. Compared with a year earlier, import prices were up 8.1 percent and export prices were up 11.6 percent, the BLS said. In other words, the monthly gains are not a single jump. They add to a rise that has been building for a while.

The same BLS summary of major indicators lists the consumer price index at +0.6% for Sep 2026 and producer prices for final demand at +1.3%(p). The letter p marks a preliminary figure that can still be revised.

How it is measured

Import and export price indexes track what businesses pay for goods bought from abroad and what they receive for goods sold abroad. They follow the price of the same kinds of goods over time, so the index moves when prices change, not when the amount traded changes.

That makes them different from the consumer price index. CPI, the measure most people mean when they say inflation, follows a basket of goods and services bought by households, including rent, food and fuel at the pump. Trade price indexes sit earlier in the chain. They describe costs at the border, before goods reach a shop shelf or a factory floor.

A useful way to read the three measures together is as a pipeline. Import prices show what is arriving from outside. Producer prices show what businesses charge each other. Consumer prices show what finally reaches households. When all three rise in the same month, as the BLS figures show for September, the pressure is visible at several stages at once.

The wider inflation backdrop

CNBC reported that the annual CPI rate reached 3.7% in September, up from 3.4% in August. Core inflation, which leaves out food and energy because they swing a lot, was 2.6% against 2.4% the month before.

Energy was the main driver. Per CNBC, the CPI energy component rose 5.2% in the month, tied to the ongoing US conflict with Iran that began in late February. CNBC also pointed to tariffs from President Donald Trump and to demand for goods linked to the artificial intelligence build-out as further sources of upward pressure.

"The only surprise is that investors keep getting surprised by broad-based inflation," Sonu Varghese, who leads macro strategy at Carson Group, told CNBC.

Why it matters over years, not days

For a long-term investor, a single month of trade prices says little. What matters is whether higher costs at the border stay in place long enough to shape wages, company margins and interest rates.

The Federal Reserve is watching that question. CNBC noted that in September the Fed made its first rate increase in over three years, a quarter point, setting the target for the federal funds rate at 3.75%-4%. Fed officials worry that a long war could let the energy jump spread into wider prices and into what people expect inflation to be, even though supply shocks are usually seen as temporary.

The next FOMC meeting, where the Fed's rate-setting committee meets, is on Oct. 27-28. CNBC said markets expect no move in October but another increase in December. Expectations like these can change, so they are a description of current pricing, not a forecast.

The labor side of the BLS summary adds context. It puts September payroll employment growth at +29,000(p) and the change in average hourly earnings at +$0.05(p). For the 2nd Qtr of 2026 it shows the employment cost index at +0.9% and productivity at +1.4%. Higher input costs matter more when they meet rising labor costs; they matter less when productivity absorbs them.

One caveat: the Fed's main policy gauge is not CPI or trade prices. It is PCE, a price index for personal consumption spending published by the Commerce Department. CNBC said the September PCE data come out later this month, so the picture is not complete yet.

Questions to ask about your own plan

Data like this are most useful as a prompt to check assumptions, not as a signal to act.

• Does my plan assume a specific inflation rate, and what happens to it if prices stay higher for longer?
• How much of my portfolio depends on interest rates staying where they are today?
• Do I understand which parts of my holdings are sensitive to energy and trade costs?

None of these questions has a single right answer. The point is to know where your plan is exposed before the next release, rather than after it. Investments can lose value, and changes in inflation or interest rates can be one reason why.

Sources

• Bureau of Labor Statistics, 16 Oct 2026
• CNBC, 14 Oct 2026

AI-drafted from the official releases cited above and published automatically after checks that every number matches its source and no sentence is copied. No human edited it. It explains what the data means for long-term investors, not what to trade.