U.S. Import Prices Just Printed an 8.1% Annual Climb — And That's Before Tariffs

The headline is striking enough on its own: U.S. import prices climbed 1.1% in September and are now up 8.1% over the past year, the largest 12-month jump since the +8.8% reading of July 2022. Fuel did most of the work — petroleum is +35.4% YoY, natural gas +96.5% YoY — but the more durable signal sits in nonfuel imports, which accelerated to +6.0% YoY, the strongest core pace since August 2022. The critical nuance investors miss: the BLS Import Price Index is published on a duty-exclusive basis. The 8.1% number measures what foreign factories are charging before U.S. tariffs are layered on. With the average effective U.S. tariff rate now running 7.1% to 10.6% depending on the month, the all-in landed-cost inflation flowing into retailers' cost of goods is closer to 15–19% YoY. The tariff layer is no longer a margin buffer that importers can choose to absorb — at this import-price pace, it is structural, and it stacks on top of every input cost.

The country detail points to two different mechanisms running in parallel. Canada's +16.1% YoY print is overwhelmingly an energy story — crude and natural gas flowing across the border are repricing in line with the +34.5% fuel index. Strip out fuels and Canada's pace is closer to the U.S. core. China's +0.7% monthly reading is the more consequential signal for retail: it is the largest monthly increase since December 2021, just before the Trump-era tariffs first landed. A sustained reacceleration of Chinese import prices, even with tariffs layered on top, would mark a turning point for sourcing economics across apparel, hardlines, and home goods. Williams-Sonoma, Five Below, Dollar Tree, and Levi Strauss source a meaningful share of their merchandise from China and have flagged it repeatedly on calls.

One day before the import release, BLS reported the September Producer Price Index at +1.3% MoM and +6.3% YoY — the largest monthly gain in roughly 4½ years, with energy products accounting for over 80% of the move (PPI energy itself rose +10.8% MoM). Read together, the two prints tell a coherent story: foreign producers are charging more, and U.S. producers are being forced to pass it through. The PPI is duty-inclusive at the factory-gate level, so it captures the full landed-cost stack that importers actually pay. The +6.3% YoY PPI for final demand is now running well above the Fed's 2% target, and the import-price release shows the upstream pipeline of cost pressure has not thinned — it has thickened.

The other piece investors are mispricing: the September import-price data lands just as the one-time IEEPA tariff refunds stop flowing. After the February 2026 Supreme Court ruling that IEEPA did not authorize the Trump-era tariffs, major retailers booked substantial refunds in Q2 and Q3. Target recognized a $994 million pretax IEEPA refund in Q2, doubling its quarterly operating income; Costco booked $184 million in Q3; Williams-Sonoma recorded $167.8 million as a reduction of cost of goods sold in Q2 FY2026 — a +610 bps tailwind to gross margin, offset by an underlying -230 bps drag from tariffs already paid; Dollar Tree received roughly $369 million in Q2; Levi Strauss recorded $80 million in Q3, explicitly noting that the Q3 figure was \"substantially all\" of the refunds it expects to receive. The headline operating income across the cohort overstated the underlying margin trajectory. The September import-price reading is the first one that will not get the offset.

Looked at this way, the September import-price print is the first real test of pricing power under the full tariff-plus-import stack. Companies that absorbed Q2 refunds into reported margins without reinvesting — or that baked refunds into forward guidance — are the ones most exposed to a Q4 setup where the +8.1% underlying YoY import inflation is on top of a roughly 7–10% effective tariff rate, with no offsetting refund line.

Short-term (days to quarters), the immediate move is in Q4 2026 and Q1 2027 earnings guidance cycles that start in mid-November with Walmart (Nov 19 release) and Target. Analysts will strip out the one-time IEEPA benefit that inflated Q2 and Q3 operating income and ask management to defend a clean gross-margin trajectory against an 8.1% underlying import-price pace plus 7–10% tariff layer. Guidance cuts are the highest-probability outcome for the companies that already signaled reinvestment of refunds (Dollar Tree, Target) and for those with thin cushion (Macy's, Kohl's). The print also raises the bar for the Fed's preferred inflation gauge — by NY Fed Liberty Street estimates, tariffs had already contributed 2.9 percentage points to goods price inflation by February 2026, and the new import-price data suggests the contribution has grown since.

Long-term (one to three years), the structural read is starker. The +6.0% YoY nonfuel import-price reading is the largest since August 2022 and is now in a year-long acceleration pattern (Mar 2026 +2.1%, May +6.7%, Jun +7.1%, Sep +8.1%). Sustained mid-single-digit imported inflation erodes the price advantage that justified the multi-decade U.S. consumer goods sourcing model. Sourcing diversification — what Williams-Sonoma has been executing since 2024 by reducing China share from ~50% to ~25% — becomes the dominant margin lever. Companies that have already moved manufacturing geography (Levi Strauss multi-country sourcing, Five Below active tariff management) sit on better footing than those still concentrated in any single high-tariff origin. The print is consistent with a multi-year regime change in imported-goods inflation, not a one-quarter blip.