The Bureau of Labor Statistics has scheduled the August 2026 Consumer Price Index report for Friday, September 11, 2026, at 8:30 a.m. Eastern Time. For traders watching inflation markets on Kalshi, this date anchors planning around potential contract availability, position timing, and source verification. This guide covers what the official calendar confirms, what it does not confirm, and the steps traders should take before acting on any CPI-linked market.
Primary sources checked: The BLS September 2026 release calendar lists the Consumer Price Index for August 2026 on September 11 at 8:30 a.m. ET. The BLS CPI program page provides methodology and historical data context. The CFTC designation order for KalshiEX confirms the exchange's regulated status but does not specify any particular CPI contract. Source snapshot date: July 17, 2026.
The official BLS schedule provides three verified facts:
The BLS calendar page notes it was last modified on February 18, 2026, and states that schedules are updated as needed. Traders should therefore recheck the calendar closer to the event rather than assuming the schedule cannot change.
The CPI report will cover price changes across consumer goods and services during August 2026. The BLS calculates both headline CPI (all items) and core CPI (excluding food and energy). Which measure matters for any given Kalshi contract depends entirely on that contract's settlement rules, not on BLS methodology alone.
The release schedule tells traders when data becomes public. It does not tell traders anything about Kalshi market availability, contract terms, or settlement mechanics. Specifically, the BLS calendar does not confirm:
Treating the BLS release time as equivalent to a Kalshi contract's close or settlement time would be an error. These are separate sources with separate purposes.

Before planning any trade around the August 2026 CPI release on September 11, traders need to check current contract status directly on Kalshi. The verification process involves several steps:
This brief does not confirm that an August 2026 CPI contract is currently listed. Market availability changes over time, and Kalshi may list contracts weeks or months before the reference period. The only way to know current status is to check Kalshi directly.
A contract's own rules identify its settlement source and calculation. If a current Kalshi CPI contract exists, traders should verify these points on that exact contract page:
Contract rules should specify which published value counts. Do not assume the initial 8:30 a.m. figure is automatically the settlement value without reading the contract terms.
For traders building a calendar around inflation data, the August 2026 CPI release on September 11 fits into a broader official schedule. The same BLS calendar lists these nearby releases:
Traders following multiple economic indicators can use the @Kalshi_market Telegram channel for discussion around release timing and market activity. Keep in mind that calendar proximity does not imply correlation, and each data release affects markets differently depending on expectations.
This page serves as a static planning guide, not a live odds board. Before placing any trade on a CPI-linked Kalshi market, complete these verification steps:

The CFTC source above confirms KalshiEX's designation as a contract market, but it does not establish the terms or availability of a CPI contract. Verify current eligibility and all contract-specific requirements directly on Kalshi.
The Bureau of Labor Statistics has scheduled the Consumer Price Index for August 2026 to be released on Friday, September 11, 2026, at 8:30 a.m. Eastern Time. This information comes from the official BLS September 2026 release calendar, last modified February 18, 2026. The BLS notes that schedules can be updated, so traders should verify the date again closer to the release.
No. The BLS release schedule and any Kalshi contract rules are separate sources. This guide does not confirm a contract or its timing. If a relevant contract exists, read its exact rules on Kalshi instead of treating 8:30 a.m. as a close or settlement time.
Visit the Kalshi markets directory at kalshi.com/markets and search for CPI or inflation contracts. If a contract specifying August 2026 exists, read its full rules for the settlement source, calculation, close time, and fees. This guide does not confirm current availability.
Only the exact rules of a verified contract can answer that question. The BLS publishes multiple CPI measures and calculations, while this guide does not confirm which one any future Kalshi contract would use.
Not financial advice. Prediction-market trading is speculative, and you can lose money. Do your own research.