Release Details
The BLS publishes the Consumer Price Index for August 2026 at 12:30 GMT (13:30 BST / 08:30 ET) on Friday 11 September. The report covers headline CPI (all items), Core CPI (excluding food and energy), and the sub-component breakdown — shelter, energy, transportation, medical care and used vehicles.
The timing is the story. This is the final CPI before the FOMC convenes on 15-16 September, and that meeting carries a Summary of Economic Projections — the dot plot — so the committee is not just setting a rate, it is publishing its forward path. A Friday release also means positions carried into the print are carried into a weekend three sessions before the decision. Whatever this number says, the market has to live with it through the FOMC blackout.
The Two-Month Trend Into This Print
| Metric | June (Actual) | July (Actual) |
|---|---|---|
| Headline CPI (YoY) | 3.5% | 3.4% |
| Core CPI (YoY) | 2.6% | 2.5% |
| Headline CPI (MoM) | -0.4% | +0.1% |
| Core CPI (MoM) | 0.0% | +0.2% |
Prior actuals from the BLS releases of 14 July and 12 August 2026. Consensus for the August print locks in the 48 hours before release — confirm it on our economic calendar before positioning.
The trend is disinflation — but the momentum question is open. June delivered the shock: a -0.4% monthly headline on collapsing energy prices and a flat core, the cleanest disinflation print in years. July confirmed the annual direction (3.5% → 3.4% headline, 2.6% → 2.5% core) but the monthly core reading bounced back to 0.2% — the pace it ran through most of the tariff cycle. The August print is the tie-breaker: a core MoM at 0.1% or below extends the disinflation story straight into the dot plot; a firm 0.3% says June was the outlier and underlying momentum never actually stopped.
Prior Month Recap: July 2026 CPI
The July 2026 CPI (released 12 August) printed a 0.1% monthly headline rise, taking the annual rate down to 3.4% from 3.5% in June — the second consecutive month of easing after the 4.2% May peak. Core rose 0.2% on the month, with the core annual rate slipping to 2.5% from 2.6%. The report read as steady, unspectacular disinflation: the energy-driven June collapse did not reverse, but the 0.2% core pace showed services inflation still grinding rather than stalling.
For how the disinflation turn began, see our CPI June 2026 reaction.
The Data Sequence: CPI to the September FOMC
This CPI opens the densest central-bank week of the quarter. Each print either compounds or contradicts the last:
This release. The last inflation input before the FOMC votes and publishes its dot plot.
The Fed's rate decision, announced 16 September at 18:00 GMT with a fresh Summary of Economic Projections. This CPI is the committee's final major inflation reading before it votes.
The ONS's usual third-Wednesday slot. Sets the sterling inflation backdrop the day before the Bank of England decides.
The Monetary Policy Committee announces at 12:00 London time — the sterling leg of any GBP/USD move seeded by this CPI.
The first hard consumer data after both central bank decisions — the demand-side bookend to the week.
Scenario Analysis: EUR/USD and GBP/USD
With consensus not yet locked, frame the reaction against the July baseline — 3.4% headline YoY, 0.2% core MoM. The core MoM figure is the trigger the desk watches:
Hot (core MoM firms)
A core MoM toward 0.3% or a headline back above 3.5% YoY. USD rallies; EUR/USD drops 60-100 pips, GBP/USD 50-80. The market trims whatever easing it had priced for the 16 September decision, and the dot plot becomes the fear trade — a hot CPI plus hawkish dots is the double-hit scenario for risk. Front-end Treasury yields spike into the weekend.
In line (core MoM near 0.2%)
Headline easing toward 3.3% with core MoM holding at 0.2%. Muted initial reaction, 20-40 pip range, then the market digs into the sub-components — shelter and core services decide whether it reads as benign. Attention rotates immediately to the FOMC, with positioning squared over the weekend.
Cool (disinflation extends)
A core MoM at 0.1% or below, or a headline easing under 3.2%. USD sells off; EUR/USD rallies 50-80 pips, GBP/USD 40-70. A fourth month of fading price pressure hands the FOMC cover to validate easing expectations in both the statement and the dots — the scenario dollar bears carry into the meeting.
The month-on-month core figure matters more than the year-on-year headline. A falling YoY driven by base effects is old news; the core MoM signals live momentum — that is the number the FOMC reads for trend, five days before it votes.
How Forex Traders Can Prepare
- Confirm the consensus before you position. The forecast locks in the ~48 hours before release. Trade the surprise-versus-consensus, not the surprise-versus-prior — check the economic calendar for the confirmed number on 9-10 September.
- Watch Core CPI MoM first.Markets react to the monthly core reading as the primary signal. A 0.1% print after July's 0.2% is a very different trade than a 0.3% firming, even if the headline YoY is identical.
- Widen stops before the release. CPI routinely moves EUR/USD 50-100 pips in the first 15 minutes. Standard stop distances get clipped by the initial spike — widen to at least 1.5x your normal distance or use guaranteed stop-losses.
- Respect the Friday-to-FOMC gap. This is a Friday print with the Fed decision the following Wednesday. Anything held through the release is also held through a weekend and into pre-FOMC positioning — halve your normal size and assume the move can extend or reverse on Monday.
- Avoid the first five minutes. The initial move often reverses as the market digests sub-components. The directional trend usually establishes by 12:45-13:00 GMT.
Brokers That Handle High-Volatility Releases Well
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Frequently Asked Questions
- When is the US CPI for August 2026 released?
- The Bureau of Labor Statistics publishes the Consumer Price Index for August 2026 on Friday 11 September at 12:30 GMT (13:30 BST / 08:30 ET).
- Why does the September 2026 CPI release matter for forex traders?
- It is the last inflation print the FOMC sees before its 15-16 September meeting — a meeting that also delivers a fresh dot plot. Headline inflation has eased for two straight months, from the 4.2% May peak to 3.4% in July, so this release decides whether the disinflation trend holds into the decision or the market has to reprice. CPI routinely moves EUR/USD 50-100 pips in the first 15 minutes.
- What was the prior US CPI print?
- July 2026 CPI (released 12 August) rose 0.1% MoM with the headline easing to 3.4% YoY from 3.5% in June. Core came in at 0.2% MoM, with core YoY slipping to 2.5% from 2.6%. It was the second consecutive month of easing annual inflation after June's -0.4% MoM collapse, but the 0.2% core monthly reading showed underlying momentum had not stalled entirely.
- What is the consensus forecast for August 2026 CPI?
- Analyst consensus for the August print typically locks in the 48 hours before release; check the economic calendar for the confirmed figure. The reference point is the July print: 3.4% headline YoY, 0.1% headline MoM, 2.5% core YoY and 0.2% core MoM. The market's focus is the core MoM figure — whether it eases toward 0.1% (disinflation extending) or firms toward 0.3% (momentum returning just as the Fed meets).
- How does CPI differ from Core PCE?
- CPI uses a fixed basket and gives greater weight to shelter. Core PCE, the Fed's preferred gauge, uses a chain-weighted formula that accounts for consumer substitution and typically prints below CPI. The FOMC watches both, but CPI moves markets first because it is released earlier in the month.
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