The AI inflation PCE price index reading for July has produced a number the consensus is filing under ‘tariff noise.’ That framing may be costing analysts something important. The Federal Reserve’s preferred inflation gauge showed the core PCE price index rising 3.35% year-over-year in July, matching June’s increase, and the all-items PCE price index climbing 3.7% year-over-year. Both figures sit well above the Fed’s 2% target, and both have been moving away from that target, not towards it. The more uncomfortable detail is where the pressure is coming from.
AI Inflation in the PCE Price Index Is Not a Rounding Error
The information processing equipment category of the PCE index, covering computers, tablets, accessories and software, rose 1.4% month-on-month in July, equivalent to an annualised rate of 18%, and is up 15.5% year-over-year. Over the past eight months, the PCE index for this category has spiked by 22%. According to Yahoo Finance, AI-driven demand for memory and computer hardware has pushed up prices for video and information processing equipment 12.2% year-over-year through July, adding roughly 0.4 percentage points to core PCE inflation on its own.
That 0.4-percentage-point contribution deserves its own line in the analysis. The broad narrative treats technology as a deflationary force, the category that perpetually offsets price rises elsewhere. That story is not wrong historically. It is, however, increasingly dated. WBALtv reported that computer software and accessories were more than 21% more expensive than a year earlier. The conventional read treats this as a tariff story. Tariffs are part of it, but they are not the whole of it.
The Federal Reserve‘s own FEDS Notes found that the computer software and accessories category of the PCE price index made an unprecedented contribution to the rise in core and core goods inflation between November 2025 and March 2026. When the Fed’s own researchers reach for the word ‘unprecedented,’ the investment community’s working assumption that tech remains structurally disinflationary merits reassessment.
Core Services: The Stickier Problem Underneath the AI Story
Set aside the technology categories for a moment. Core services, which account for over 60% of consumer spending, saw their PCE index rise 0.27% month-on-month in July, equivalent to 3.3% annualised, and 3.7% year-over-year. May, June and July all came in at this level. The category covers rent, healthcare, travel, lodging, transportation services, insurance, auto repair, financial services and subscriptions. It is, structurally, the inflation that is hardest to dislodge. Competition is thin in many of these markets, price shopping is difficult or impossible in others, and providers confident they will not lose customers have little incentive to hold the line.
The durable goods PCE index added to the pressure: up 0.37% month-on-month in July, 4.6% annualised, and 3.4% year-over-year. Jewellery and watches spiked 2.0% month-on-month, 27% annualised, and 14.8% year-over-year, as the prolonged rise in gold prices passes through to retail. Energy, meanwhile, fell 1.5% month-on-month in July, the second consecutive monthly decline, yet remains 15.3% higher year-over-year, with the gasoline index still up 25% from a year ago.
Food inflation edged slightly to a year-over-year rate of 2.4%, the highest in three months. Egg prices continued to unwind after the avian-flu driven spike. Beef prices appear to have peaked and have begun to edge lower. Coffee, sugar and sweets, fresh milk and fresh seafood all continued higher. Poultry and pork declined month-on-month and were roughly flat year-over-year.
The AI inflation PCE price index dynamic carries one further complication worth noting. The Richmond Federal Reserve found that AI-related investment added 0.97 percentage points to real GDP growth in the first three quarters of 2025. The consensus view has been that AI investment is growth-positive and, eventually, productivity-positive, which should ease price pressures over time. The PCE data for July suggests the ‘eventually’ is doing a great deal of work in that sentence, and that consumers are bearing the near-term cost of the build-out well before any disinflationary dividend arrives. The core PCE price index bottomed at 2.6% in April 2025 and has been rising since. The Fed’s 2% target has not been met since March 2021. That is not a transient misalignment. It is a baseline.
