US CPI Preview: September 2026 Forecasts and the Core CPI Outlook

The US CPI report for September 2026 is due on Wednesday 14 October at 8:30 ET, which is 13:30 UK time. Published forecasts point to headline inflation rising from 3.4% to about 3.6% to 3.7% year on year. Core CPI is expected to stay close to 2.4%.

Record September petrol prices explain most of the expected jump. Core inflation is likely to draw the most attention from markets, as it can shift the odds of another Fed rate hike at the FOMC meeting on 27-28 October. This preview covers the US CPI forecast and the drivers behind US inflation in 2026. It also looks at the markets traders often watch on the day.

The information in this article is provided for educational purposes only and does not constitute financial advice. Consult a financial advisor before making investment decisions.

US CPI at a Glance

Here are the key numbers ahead of the CPI report on 14 October.

Sources: BLS and Nowflation. Nowcast data from the Federal Reserve Bank of Cleveland. Forecasts are not a reliable indicator of future performance.

US CPI Release Date and Local Times

The BLS publishes the consumer price index every month at 8:30 ET. The US CPI release date for September data is 14 October 2026, according to the official BLS release schedule.

The CPI release time in the UK is 13:30 BST. For readers in Ukraine, the data lands at 15:30 Kyiv time.

The Fed's Beige Book follows at 14:00 ET on the same day, or 19:00 in London, per the Federal Reserve calendar. It gathers anecdotal evidence on prices and hiring from the 12 Fed districts.

Headline CPI vs Core CPI: What the Report Measures

The CPI tracks the prices US households pay for a fixed basket of goods and services. It is one of the most watched inflation data releases in the world.

Headline CPI covers the whole basket. Core CPI strips out food and energy, which tend to swing more from month to month. On many economic calendars, core appears as Consumer Price Index ex Food & Energy.

Each measure comes in two forms. CPI MoM shows the change from the previous month. CPI YoY compares prices with the same month a year earlier.

Source: BLS, August 2026 CPI release. Monthly figures are seasonally adjusted.

What Is Supercore Inflation?

Supercore inflation measures core services excluding housing. Some analysts call it services ex housing inflation. It is closely tied to wages and transport costs.

This makes supercore CPI a useful check on second-round effects. If dearer fuel is pushing up delivery charges and airfares, supercore tends to show it early.

Why the Fed Watches PCE Closely

The Fed's 2% inflation target is set in terms of the PCE price index. The Bureau of Economic Analysis (BEA) publishes it.

In August, core PCE rose 3.0% year on year. Core CPI rose 2.4% over the same period. Core CPI usually runs above core PCE, so this gap is unusual.

The CPI vs PCE gap matters for markets. A core CPI near 2.4% can look close to target. The Fed's preferred gauge still sits around 3%.

Sources: BLS and BEA. The projection comes from the Federal Reserve (September 2026).

US Inflation Today: What the August 2026 CPI Showed

The August report came out on 11 September. It showed headline CPI at 3.4% year on year, unchanged from July. Headline CPI MoM rose to 0.4%, up from 0.1% in July.

Core CPI slowed to 2.4% year on year, its lowest since March 2021. On a monthly basis, core rose 0.3%, up from 0.2% in July.

Petrol did much of the work. Gasoline jumped 3.9% in the month and accounted for over a third of the overall rise, the BLS said.

Monthly vs Annual Trend

Sources: BLS, PrimeRates.

Annual core inflation is easing partly because of high base readings from 2025. The monthly pace has firmed. That split explains why traders now read the MoM figures so closely.

August 2026 CPI Components

Sources: BLS and the PrimeRates summary of BLS data. n/a means the figure was not available in these sources.

Among the CPI components, shelter inflation held at 3.0% a year. Owners' equivalent rent and rent both rose 0.2% in the month.

Airfares inflation stood out at 23.4% year on year. That suggests fuel costs are reaching ticket prices. Used car prices were 2.3% lower than a year earlier.

US CPI Forecast for September 2026: What to Expect

Published forecasts expect a stronger headline reading and a steadier core. The table gathers the main US CPI expectations as of early October.

Sources: Nowflation (consensus and Kalshi) and the Cleveland Fed. The Continuum forecast comes from its 29 September preview. Forecasts are not a reliable indicator of future performance. Estimates can change before the release.

The US CPI consensus sits at 3.7%. Continuum Economics expects a CPI 0.6% MoM rise, which would lift the annual rate to a four-month high.

Core CPI expectations cluster around 0.2% month on month and 2.4% year on year.

The Cleveland Fed nowcast leans on daily oil and petrol prices. It tracks energy swings closely, so its headline estimate often moves as fuel prices change.

Kalshi CPI contracts let users take positions on the outcome. These CPI prediction market prices are often quoted as CPI odds. They reflect trader positioning and can shift quickly.

Why Headline CPI Could Jump

Petrol is the main driver. Gas prices in September 2026 averaged $4.33 a gallon, AAA data show. That is a record for the month and 50 cents above the previous September high of $3.83, set in 2023. US petrol prices remain the highest on record for this time of year, AAA notes.

Source: AAA. Past performance is not a reliable indicator of future results.

Gasoline CPI carries a weight of roughly 3% to 4% in the index. A sharp monthly move can therefore add several tenths of a point to headline inflation.

Continuum expects total energy prices to rise by about 5.5% in September. That would be the biggest energy contribution since March, when energy rose 10.9%.

Why Core CPI Could Stay Steady

• Shelter is the largest part of core, and rent and OER rose just 0.2% each in August.
• Used car prices rose 0.4% in August, and Continuum expects a correction lower.
• A 5.4% jump in telephone services lifted core in August, and Continuum treats it as a one-off.
• The Cleveland Fed nowcast puts core at 0.20% month on month.

Why Core CPI Could Surprise Higher

• Airline fares rose 2.7% in August and 23.4% over the year.
• Diesel and delivery costs can feed into services prices with a lag.
• Consumers expect 4.6% inflation over the next year, according to the University of Michigan.
• Fed Governor Waller warned on 8 October that persistent inflation could become embedded in expectations.

Why Rounding and Base Effects Matter

CPI rounding can change the story. The BLS reports one decimal place, so a core reading of 0.26% and one of 0.34% both print as 0.3%. Traders often work out the unrounded core CPI from the index levels within seconds.

Economists argue about the second decimal place with the passion most people save for a cup final.

CPI base effects matter too. In September 2025, headline CPI rose 0.3% and core rose 0.2% month on month. A headline print of 0.6% this time would lift the annual rate to roughly CPI 3.7%. A 0.5% print would point to about CPI 3.6%.

Illustrative arithmetic based on the September 2025 monthly change. Actual figures depend on unrounded index levels.

Why US Inflation Is Rising in 2026

The Energy Shock From the Iran War

The Iran war has disrupted tanker traffic through the Strait of Hormuz, a key route for global oil and LNG. Oil prices have stayed high as a result.

Brent crude traded around $107 a barrel in late September, our gold price analysis noted. WTI crude settled at $90.42 in early October, AAA reported.

Fed Governor Waller pointed to the energy shock tied to the Iran conflict as an ongoing source of price pressure in his 8 October speech. This kind of energy shock inflation can spread into transport costs and services over time.

The Fed Under Kevin Warsh Is Raising Rates

On 16 September, the Federal Reserve raised its target range by 25 basis points. The decision was unanimous at 12-0, and it was the first hike since July 2023. Our report on the September rate hike covers the details.

The Fed dot plot September 2026 shows a median rate of 4.1% at the end of 2026. That implies one more quarter-point rise this year. Officials also see core PCE at 3.4% for 2026.

The September FOMC minutes, released on 7 October, showed that most officials saw another hike as likely appropriate by year end. Our FOMC minutes preview sets out what markets were watching.

Sources: Federal Reserve, FOMC calendar.

Sources: investingLive (8 October) and investingLive (5 October).

Analysts often split the committee into Fed hawks and Fed doves. For now, the gap between the two camps is mostly about timing. Our recap of Williams' 29 September speech shows how one key voter frames the debate.

The Labour Market Is Cooling

The US jobs report for September 2026 showed payrolls rising by just 29,000, well below forecasts near 90,000. The unemployment rate rose to 4.2%. July and August were revised down by a combined 60,000, according to the BLS.

Wage growth slowed to 3.0% year on year. With CPI at 3.4%, real wages are falling. Some analysts see this mix as a stagflation risk.

Source: BLS Employment Situation, 2 October 2026.

Our guide to nonfarm payrolls explains how jobs data can move markets.

Treasury Yields at Multi-Decade Highs

Treasury yields have climbed fast in 2026. The 10-year Treasury yield hit an intraday high near 5.34% on 1 October, the highest since 2002. On 7 October it touched 5.36% before a solid auction pulled it back to around 5.28%, Babypips reported.

Official Fed data put the 10-year at 5.27% on 6 October. The 2-year Treasury yield stood at 4.79%. That leaves the 2s10s spread at about 48 basis points.

Much of the rise has come from real yields. The 10-year TIPS yield reached 2.91% on 6 October, per Fed H.15 data. At the 17 September auction, 10-year TIPS sold at a real yield of 2.653%, the highest since 2008, Tipswatch noted.

The difference between nominal and real 10-year yields gives the breakeven inflation rate. It was about 2.36% on 6 October. Household inflation expectations are far higher. The University of Michigan survey showed 4.6% for the year ahead and 3.4% over five years in September.

Some analysts read this gap as a sign that bond markets trust the Fed more than households do. Others see a risk if inflation stays high for longer.

The fiscal deficit adds pressure too. Investors may demand a higher term premium to hold long-term debt. Our US monthly budget statement preview looks at the latest fiscal data. If you are new to bonds, our guide to government bonds covers the basics.

Source: Federal Reserve H.15. Past performance is not a reliable indicator of future results.

A Data Quality Wrinkle

The BLS did not collect CPI data from 1 October to 12 November 2025, during the government shutdown. This affected the October and November 2025 indexes, the BLS explains. The missing October 2025 data also affected the April 2026 rent and OER indexes.

That gap matters for CPI data collection and for future comparisons. The October 2026 CPI report, due on 10 November, may be harder to read on a year-on-year basis.

Fed Rate Hike Odds Before the CPI Report

Markets have pushed the next expected hike from October to December. The table shows the Fed rate hike probability implied by the CME FedWatch tool in early October.

Sources: CME FedWatch via Admirals and investingLive. Market pricing changes constantly and does not forecast Fed decisions.

A hot core print could revive talk of a Fed rate hike in October 2026. After the August CPI, futures-implied odds of a September hike rose above 65%, from 50% to 57% before the release, PrimeRates reported. The Fed then hiked on 16 September.

Past market reactions are not a reliable indicator of future results.

A Fed rate hike in December 2026 remains the bigger debate. Waller has said further hikes need not come at consecutive meetings. That leaves room for a pause in October. The Warsh press conference after the FOMC decision on 28 October is the next chance to shape expectations.

Politics adds another layer. The midterm elections 2026 take place on 3 November, six days after the October decision. Read our guide to trading the Fed rate decision for more background.

CPI Scenarios: How Markets Could React

The scenarios below are illustrative. They draw on how markets have often reacted to past CPI surprises and should not be read as predictions.

Illustrative only. Past performance is not a reliable indicator of future results. Real reactions can differ, and moves can reverse quickly.

What Counts as a CPI Surprise?

A CPI surprise is the gap between the actual number and the consensus. A CPI beat means inflation came in above forecast. A CPI miss means it came in below.

For core, a gap of 0.1 percentage point has often been enough to move markets. That is why a hot CPI or soft CPI reading on core gets so much attention.

How Markets React to CPI

How markets react to CPI depends on the size of the surprise and on positioning. Short-dated yields often react more than long-dated ones, since they track Fed expectations closely.

The first move can reverse within minutes. Algorithms trade the headline first, and humans catch up once they have read page two.

Options traders price an expected move ahead of each release. The SPX implied move around CPI gives a rough guide to the volatility the market expects. It is an estimate and can be wrong in both directions.

Markets to Watch on CPI Day

The stock market CPI reaction is only part of the picture. The table lists the markets traders often follow around the release.

EUR/USD and the US Dollar

The US dollar tends to firm when US inflation surprises higher, as rate expectations rise. The DXY dollar index rose 0.42% to about 102.3 on 7 October after the Fed minutes, Babypips reported.

EUR/USD is the most traded pair linked to that move. Our guide to the US Dollar Index explains how the index is built.

USD/JPY and the 160 Level

USD/JPY reacts strongly to US yields. In 2024, Japan intervened in currency markets after the pair moved above 160. Traders often watch USD/JPY 160 for signs of fresh Japan intervention.

Gold Price and Real Yields

The gold price often moves against real yields. Gold pays zero interest, so higher real yields raise the cost of holding it. Analysts often describe the link between gold and real yields as inverse.

Spot gold touched an eight-week low of $4,110 on 28 September, our gold price analysis showed. The link with real yields can weaken at times, and gold can move sharply in both directions. Learn more in our introduction to gold.

US Stocks and Bank Earnings

Higher yields can weigh on growth shares, which make up a large part of the Nasdaq. The S&P 500 also faces a busy morning on 14 October.

Bank of America earnings and Morgan Stanley earnings are both scheduled before the US open that day, according to the Digrin earnings calendar. ASML earnings are also due. Banks are among the most rate-sensitive sectors, so bank earnings on 14 October could add to CPI day volatility.

Oil Prices

Oil prices feed straight into headline CPI through petrol. A deal on the Strait of Hormuz could ease energy costs. Fresh escalation could push them higher.

Our guide on how to trade crude oil CFDs covers the basics.

How Traders Often Prepare for the CPI Report

How to trade CPI is a common question before each release. Approaches differ, and every strategy carries risk. The points below describe what many traders monitor. They are general information and do not constitute a recommendation.

A CPI-Day Checklist

• Check the latest consensus and the Cleveland Fed nowcast shortly before 8:30 ET.
• Read core CPI month on month first, since markets often react to it most.
• Look at supercore and airfares to judge whether fuel costs are spreading.
• Check shelter and OER for signs of cooling housing costs.
• Compare the 2-year yield before and after the release to see how Fed expectations shift.
• Keep in mind that the first move can reverse once the full report is digested.

Managing Risk Around High-Impact Data

Trading the CPI report carries specific risks. Spreads may widen, and prices can jump past stop-loss levels. This is known as slippage.

Any CPI trading strategy needs to account for these risks. Many traders use smaller positions around major releases to manage risk. Our guide to forex risk management covers position sizing in more detail.

Trading CPI Moves With CFDs

With Admirals, you can trade CFDs on Forex pairs such as EUR/USD and USD/JPY. CFDs on commodities like gold and oil are also available, as are CFDs on indices. Our beginner's guide to CFD trading explains how they work.

CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.

You can practise on a demo account that uses virtual funds. Demo results may differ from live trading, where slippage and other conditions apply. The MetaTrader 5 platform also includes a built-in economic calendar.

Economic Calendar October 2026: Key Dates After the CPI

The US economic calendar stays busy after the CPI. You can follow every release on our economic calendar.

Sources: BLS CPI schedule, BLS PPI schedule, BEA schedule, Federal Reserve.

The US PPI on 15 October offers an early read on pipeline costs. The PCE report on 29 October lands the day after the Fed decision.

UK readers, take note. British clocks go back on 25 October, and US clocks follow on 1 November. For that one week, New York sits just four hours behind London.

Key Takeaways

• The September US CPI report is due on 14 October at 8:30 ET, or 13:30 UK time.
• Forecasts point to headline inflation of about 3.6% to 3.7%, driven by record September petrol prices.
• Core CPI is expected near 2.4% year on year and 0.2% to 0.3% month on month.
• Markets priced about a 20% chance of an October Fed hike in early October.
• Market reactions to CPI can be fast and can reverse, so risk management matters around the release.

Frequently Asked Questions

When is the next US CPI report released?

The September 2026 US CPI report is released on Wednesday 14 October 2026 at 8:30 ET, 13:30 UK time.

What is the US CPI forecast for September 2026?

Consensus points to headline CPI near 3.7% year on year, while the Cleveland Fed nowcast shows 3.60%.

What is the difference between headline CPI and core CPI?

Headline CPI covers all items in the basket. Core CPI excludes food and energy, which tend to be volatile.

Why does core CPI matter to the Fed?

Core CPI shows underlying price trends. The Fed watches it closely, alongside core PCE, when deciding on interest rates.

Could the Fed raise rates in October 2026?

Markets priced about a 20% chance of an October hike in early October. A hot core reading could change that.

How do markets usually react to a hot CPI report?

Hot CPI reports have often lifted Treasury yields and the dollar. Past reactions are not a reliable guide.

Why is US inflation rising in 2026?

Energy costs linked to the Iran war have pushed petrol prices to September records, lifting headline inflation.

What time is US CPI released in the UK?

US CPI is released at 13:30 UK time on 14 October, as the UK is still on BST.

Sources

• BLS, Consumer Price Index news release for August 2026, accessed 8 October 2026.
• BLS, schedule of CPI releases, accessed 8 October 2026.
• BLS, Employment Situation for September 2026, accessed 8 October 2026.
• BLS, 2025 government shutdown impact on the CPI, accessed 8 October 2026.
• BEA, Personal Consumption Expenditures Price Index, accessed 8 October 2026.
• Federal Reserve, FOMC statement of 16 September 2026, accessed 8 October 2026.
• Federal Reserve, minutes of the 15-16 September 2026 FOMC meeting, accessed 8 October 2026.
• Federal Reserve, FOMC meeting calendar, accessed 8 October 2026.
• Federal Reserve, H.15 selected interest rates, accessed 8 October 2026.
• Federal Reserve Bank of Cleveland, inflation nowcasting, accessed 8 October 2026.
• AAA, national average petrol prices, accessed 8 October 2026.
• University of Michigan, Surveys of Consumers, accessed 8 October 2026.
• CME Group, FedWatch tool, accessed 8 October 2026.
• Continuum Economics, September CPI preview, accessed 8 October 2026.
• Nowflation, September 2026 CPI preview, accessed 8 October 2026.
• Tipswatch, 10-year TIPS reopening results, accessed 8 October 2026.
• investingLive, Waller remarks of 8 October 2026, accessed 8 October 2026.
• Babypips, September FOMC minutes reaction, accessed 8 October 2026.
• PrimeRates, August 2026 CPI summary, accessed 8 October 2026.
• Digrin, earnings calendar for 14 October 2026, accessed 8 October 2026.

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