By Kalshi View Editorial Team · 2026-07-15 · Updated 2026-07-19
Real Federal Reserve photograph by Board of Governors of the Federal Reserve System / Wikimedia Commons, public domain in the United States.
September 2026 FOMC on Kalshi: Dates, Rules & SEP
Quick answer: The Federal Reserve calendar lists the September FOMC meeting for September 15-16, 2026 and marks it as associated with a Summary of Economic Projections. On July 19, 2026, Kalshi's official event API showed `KXFEDDECISION-26SEP` with five active, mutually exclusive markets. This is a dated rules snapshot, not a live odds page.
Primary sources checked: July 19, 2026. The Federal Reserve's
2026 FOMC calendar lists the September 15-16 meeting and marks it as associated with a Summary of Economic Projections. The Board's
SEP guide explains the projection tables and participant rate-path assessments. Kalshi's
official event API record for KXFEDDECISION-26SEP showed five active, mutually exclusive markets for the September 16 decision. This guide also checked the
generic FEDDECISION terms,
Kalshi market-rules guidance, the
Kalshi fee schedule, and the
CFTC's Kalshi designation record. The CFTC record establishes venue status, not the terms of this event. The exact event API reported a 2026-09-16T17:59:00Z close time, while the generic terms list 1:55 PM ET as the last trading time. Because those official records are not identical, this page does not present a universal cutoff; the live market page and exact rules control. This dated guide does not reproduce live prices, volume, liquidity, or probabilities.
What the Federal Reserve calendar and SEP establish
The calendar establishes the scheduled September 15-16 meeting and the SEP designation. It does not define a Kalshi contract. The Federal Reserve's SEP guide describes participant projections for real GDP growth, the unemployment rate, PCE inflation, core PCE inflation, and assessments of the appropriate federal-funds-rate path.
The SEP is official context released in connection with the meeting, but it is not a guaranteed policy path and this page does not predict its contents or market effect.
What the exact Kalshi event snapshot establishes
The July 19 official API response identified event ticker KXFEDDECISION-26SEP, titled "Fed decision in Sep 2026?" The record marked the event mutually exclusive and included five nested markets with status active. Each nested market reported a close time of 2026-09-16T17:59:00Z and an expected expiration time of 2026-09-16T18:05:00Z.
Those are timestamped API facts, not promises that the event or fields will remain unchanged. Reopen the exact event and its live market pages before relying on them.
Two official-source discrepancies to preserve
- Closing time: The exact event API reported 17:59:00Z, or 1:59 PM EDT, while the generic FEDDECISION terms list 1:55 PM ET as the last trading time. The records are not identical, so this page does not select a universal cutoff.
- One outcome's wording: Ticker KXFEDDECISION-26SEP-C26 has a title that says "Cut rates by >25bps", while the API's primary-rule text omits the greater-than sign. This page does not silently repair or independently interpret that mismatch.
When a generic document and an exact event record diverge, record the discrepancy and verify the selected market's live rules. Do not turn an editorial guess into settlement language.
Live-market verification checklist
- Event and market identity: Confirm the event ticker, selected market ticker, exact title, status, and mutually exclusive structure.
- Exact rules: Read the selected market's full rules and named outcome verification source. Do not rely only on the API title.
- Times: Recheck close time, expiration time, expected determination time, and any last-trading language on the live market page.
- Wording conflict: If the C26 title and rule text still differ, preserve evidence and seek clarification from Kalshi rather than assuming which symbol was intended.
- Execution: Inspect the current order book for the full intended size. This article contains no live quote or probability.
- Fees: Apply the current fee schedule to the intended order rather than copying an old example.
Reproducible snapshot record
The repository source brief stores the exact API URL, checked fields, discrepancy notes, and the canonical JSON SHA-256 for the July 19 response. A later review can repeat the request, compare the fields and digest, and document any change without overwriting what was observed here.
Frequently Asked Questions
When is the September 2026 Federal Reserve meeting?
The Federal Reserve calendar lists the meeting for September 15-16, 2026 and marks it as associated with a Summary of Economic Projections.
Was a September 2026 Fed decision event present on Kalshi when this page was reviewed?
Yes. On July 19, 2026, Kalshi's official event API showed KXFEDDECISION-26SEP with five active, mutually exclusive markets. Status and exact rules can change, so recheck the live event before trading.
What is included in the Summary of Economic Projections?
The Federal Reserve's guide describes participant projections for real GDP growth, unemployment, PCE inflation, core PCE inflation, and assessments of the appropriate federal-funds-rate path.
What is the trading cutoff for the September event?
The July 19 exact-event API snapshot reported 2026-09-16T17:59:00Z, while the generic FEDDECISION terms list 1:55 PM ET. Because the official records differ, verify the live market page and exact rules rather than relying on a universal cutoff.
Not financial advice. Prediction-market trading is speculative, and you can lose money. Do your own research.
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