Core CPI — the Consumer Price Index for all items excluding food and energy — rose 2.5% year over year and 0.2% for the month in July 2026, according to the Bureau of Labor Statistics' Consumer Price Index Summary, released August 12, 2026. The measure strips out two categories the BLS itself calls "relatively volatile" so that economists, the Federal Reserve, and consumers can track underlying price trends without month-to-month swings in gas pumps and grocery aisles.
What is core CPI, exactly?
Core CPI is a copula-simple idea: it is the same all-items Consumer Price Index published monthly by the BLS, minus the food and energy components. The BLS says users track this alternative index because food and energy prices move sharply from one month to the next, and removing them isolates what the agency calls the "underlying" inflation rate. It is not a separate survey — it is a recalculation of the same underlying price data collected for the headline CPI-U, the "All Items Consumer Price Index for All Urban Consumers," which covers more than 90% of the U.S. population living in urban areas, per the BLS.
Why does the BLS strip out food and energy?
Food and energy prices swing on factors — weather, crop yields, refinery outages, geopolitical supply shocks — that can reverse within weeks and don't reflect broader demand pressure in the economy. In the July 2026 report, the energy index fell 1.5% for the month even as the headline all-items figure rose only 0.1%, a gap the BLS release attributes largely to that single volatile category. Left in, energy's swing would have muddied a reading of where broader prices were actually headed. Core CPI is the BLS's answer to that noise problem, not a claim that food and energy don't matter to household budgets — they plainly do.
How is the CPI basket built in the first place?
The headline and core indexes both draw from the same market basket, organized by the BLS into eight major expenditure groups: food and beverages, housing, apparel, transportation, medical care, recreation, education and communications, and other goods and services. Item weights inside that basket come from the Consumer Expenditure Survey, which estimates how much households actually spend on each category, the BLS says. Price data itself is collected month to month from about 23,000 retail and service establishments across 75 urban areas, with rent information gathered separately from roughly 50,000 landlords and tenants. Core CPI simply removes the food and energy slices from that same weighted basket before the index is calculated.
What moved core CPI in the latest report?
Shelter was the dominant factor. The BLS reported the shelter index rose 0.1% in July 2026 and said shelter alone accounted for roughly two-thirds of the entire monthly increase in the all-items index. Because shelter sits inside core CPI — it is neither food nor energy — that housing-cost pressure flows directly into the 0.2% monthly core reading. The year-over-year core figure of 2.5% reflects twelve months of that kind of accumulation across categories like shelter, medical care, and apparel, none of which get excluded the way gasoline and groceries do.
| Measure | Monthly change | Year-over-year change |
|---|---|---|
| Headline CPI (all items) | +0.1% | +3.4% |
| Core CPI (excl. food and energy) | +0.2% | +2.5% |
| Energy index | -1.5% | — |
Chart: The Daily News 24 · Data: U.S. Bureau of Labor Statistics, Consumer Price Index Summary, July 2026.
How often is core CPI updated?
The BLS publishes national CPI indexes — including CPI-U, CPI-W, and the chained C-CPI-U — on a monthly schedule; regional and metropolitan-area data follow separate monthly or bimonthly release calendars. Core CPI is published in the same monthly release as the headline number, not on a separate timetable, so every CPI report carries both figures side by side. The reference base period for most series remains 1982-84=100, meaning today's index values measure cumulative price change against that fixed starting point.
Why does the distinction matter beyond the headline number?
Core CPI is widely used as a read on trend inflation precisely because it filters out categories prone to short-lived spikes or drops. A single month where energy prices fall 1.5%, as they did in July 2026, can pull the headline number down without signaling that broader price pressure has eased — the core figure, unaffected by that swing, is the one showing whether the underlying trend is still running above or below prior periods. Neither figure is a forecast; both are backward-looking measures of prices already recorded for the reference month, published under the BLS's standard monthly schedule. This is information about a published economic series, not investment or trading guidance.
Frequently Asked Questions
Is core CPI always lower than headline CPI?
Not necessarily — it depends on how food and energy prices move that month. In July 2026, core CPI's monthly reading (0.2%) was higher than the headline figure (0.1%) because energy prices were falling, pulling the all-items number down while core, which excludes energy, was unaffected.
Does core CPI mean food and energy costs don't affect households?
No. The BLS uses core CPI only to isolate underlying price trends from short-term volatility in those two categories; the headline CPI-U, which includes food and energy, remains the broader measure of what urban consumers actually pay.
What is the base period used to calculate CPI values?
Most CPI series, including CPI-U, use 1982-84=100 as the reference base period, meaning current index levels represent cumulative price change relative to that period.
How many categories make up the CPI market basket?
The BLS organizes the market basket into eight major groups: food and beverages, housing, apparel, transportation, medical care, recreation, education and communications, and other goods and services.
Where does the BLS get its CPI price data?
Price data is collected monthly from about 23,000 retail and service establishments across 75 urban areas, with separate rent data gathered from roughly 50,000 landlords and tenants.
For a related business news perspective, read Core CPI Climbed 2.5% in July, Excluding Food and Fuel.
For more context, read How the Consumer Price Index Is Actually Calculated.
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