How high will CPI get this year? — Above 4.5%

- [2026-07-17] BLS confirmed the Consumer Price Index for All Urban Consumers (CPI-U) increased 3.5 percent from June 2025 to June 2026 , the year's second-highest monthly YoY print after May. https://www.bls.gov/opub/ted/2026/consumer-prices-up-3-5-percent-over-the-year-ended-june-2026.htm - [2026-08-12] CNBC reported July 2026 CPI data: consumer prices rose 0.1% in July, as expected, putting the annual inflation rate at 3.4% , down from June. https://www.cnbc.com/2026/08/12/cpi-inflation-report-july-2026.html - [2026-09-11] BLS's official release: In August, the Consumer Price Index for All Urban Consumers rose 0.4 percent, seasonally adjusted, and rose 3.4 percent over the last 12 months, not seasonally adjusted. The index for all items less food and energy rose 0.3 percent in August, up 2.4 percent over the year. This is the latest confirmed BLS CPI print as of today. https://www.bls.gov/cpi/ - [2026-10-07] Cleveland Fed's inflation nowcast projects September 2026 CPI YoY at 3.60% and October 2026 CPI YoY at 3.63%, with Q4 2026 quarterly-annualized CPI at 4.14% — still well under the 4.5% threshold. https://www.clevelandfed.org/indicators-and-data/inflation-nowcasting - [2026-10-05] A CPI tracker shows full-year 2026 monthly YoY readings so far: Jan 2.4%, Feb 2.4%, Mar 3.3%, Apr 3.8%, May 4.2%, Jun 3.5%, Jul 3.4%, Aug 3.4% — the year-to-date peak (May, 4.2%) remains below 4.5%. https://cpichart.com/us-cpi/ - [2026-10-05] Market/street consensus for the next release (September 2026 data, due Oct 14) is 3.6%-3.7% YoY, up modestly from August's 3.4% but still far below 4.5%. https://nowflation.com/cpi-release-dates - [2026-10-08] BLS's official schedule confirms the next three CPI reports — September data (Oct 14, 2026), October data (Nov 10, 2026), and November data (Dec 10, 2026) — are all due to be released before the question's Jan 1, 2027 close. https://www.bls.gov/cpi/ - [2026-09-02] A shutdown threat tied to the Oct 1, 2026 funding deadline was averted: Congress moved early, passing a continuing resolution that President Trump signed into law on September 2, 2026 nearly a full month before the deadline. The bill keeps federal agencies funded at current levels through December 11, 2026 , reducing near-term risk of a CPI release delay like the one that hit October 2025 data. https://govtschemes.org/government-shutdown-october-2026/ - [2025-10 to 2025-11, background] For context on data-disruption risk: during the prior (2025) 43-day shutdown, the Bureau of Labor Statistics cancelled the October inflation report because it was unable to retroactively obtain information that would have been collected during the record-long lapse in funding , showing such events can distort or delay CPI prints, though the current funding deal through Dec 11, 2026 makes a repeat unlikely before the question closes. https://thehill.com/business/5617502-bls-cancels-october-reports/ - [2026-10-08] A DHS-specific partial shutdown is ongoing (unrelated to the main appropriations CR): the Department of Homeland Security is largely shut down... The rest of our federal government remains open, operational and funded at this time — BLS/CPI operations are not reported as affected. https://case.house.gov/government-shutdown/ BOTTOM LINE: Headline CPI YoY has not exceeded 4.5% at any point in 2026 so far (peak 4.2% in May, now running 3.4% in August with forecasts near 3.6-3.7% for September), and three more BLS releases (Oct 14, Nov 10, Dec 10) remain before the question closes with no imminent shutdown threat to disrupt them, making a jump above 4.5% increasingly unlikely absent a major new shock. NOT FOUND: No evidence of any 2026 CPI YoY print above 4.5% in any official BLS release to date; no credible forecast or nowcast currently projects a reading above 4.5% for the remaining 2026 releases.

- [2025-12-18] Pre-2026 consensus (Blue Chip survey of ~50 forecasters, Dec 2025): For 2026, professional forecasters expect 1.9% GDP growth and a 2.9% increase in the consumer price index , with even the top-10 average forecast only reaching 3.3%, far below 4.5%. Source: stlouisfed.org - [2026-06-10] Actual 2026 CPI YoY peaked at 4.2% in May 2026, driven by an Iran-war energy price shock: prices rose at a seasonally adjusted 0.5% for the month, putting the annual inflation rate at 4.2%... Inflation climbed above 4% for the first time in three years... The level was the highest since April 2023 and above the 3.8% reading from April . This is the year's high-water mark and it never reached 4.5%. - [2026-05-13] Immediately after April's hot print, Kalshi traders' own market-implied peak forecast for 2026 was 4.8% (above the 4.5% threshold), showing some market expectation that peak could exceed 4.5%, but traders are forecasting inflation to reach a high of 4.8% this year on Kalshi's inflation market turned out too high versus the actual 4.2% peak. - [2026-10-07] After the energy shock faded, CPI YoY declined steadily: June 3.5%, and by August 2026 it was back down to 3.4% YoY, with core at 2.4% YoY (per BLS release and Cleveland Fed data). - [2026-10-07] Cleveland Fed's real-time nowcast for the most recent and upcoming months shows no return toward 4.5%: | October 2026 | 3.63 | 2.30 | 3.69 | 3.10 | 10/07 | | September 2026 | 3.60 | 2.39 | 3.56 | 3.02 | 10/07 | (CPI YoY nowcasts). - [2026-10-14 scheduled] Street/consensus nowcasts for the September 2026 CPI print (due Oct 14) cluster near 3.6%-3.7%: Nowflation Forecast (ensemble) 3.58% ... Cleveland Fed nowcast 3.57% ... Street consensus 3.70% ... Kalshi market-implied 3.63% — all well under 4.5%. - [2026-09-xx] Fed's September Summary of Economic Projections, a forward-looking policy-relevant base rate, projects PCE inflation (a related but distinct measure, usually lower than CPI) for 2026 far below 4.5%: The median projection for headline PCE inflation in 2026 rose to 3.7 percent year over year compared to 3.6 percent in the June SEP. The median projection for core PCE inflation rose to 3.4 percent versus 3.3 percent in June . - [2026-09-xx] Philadelphia Fed's Q3 2026 Survey of Professional Forecasters: Measured on a fourth-quarter over fourth-quarter basis, headline CPI and core CPI inflation in 2026 are expected to average 3.6 percent and 2.8 percent, respectively, little changed from the previous estimates — again far below 4.5%. - [Historical base rate] CPI YoY last exceeded 4.5% in the US during the 2021-2023 post-pandemic inflation surge, peaking near 9.0% in June 2022 before falling to the 3-4% range by late 2023 and staying in the 2.4%-3.5% band through 2024-early 2026 until the 2026 energy shock pushed it briefly to 4.2%. Values above 4.5% have been historically rare outside major shocks (pandemic reopening, 1970s-80s oil shocks, or the 2026 Iran-war energy spike), per decade-level data showing Over the full 113 year record, inflation has averaged 3.26% a year... the 2010s averaged 1.77% and the 2000s averaged 2.56%. The 2020s are running at 3.92% through 2025 . - [NOT FOUND:] No dedicated long-run academic base-rate study specifically on "probability CPI YoY exceeds 4.5% in a given year since 2000" was found; also no direct track record of Kalshi's own historical accuracy on CPI threshold markets beyond the single 2026 cycle. BOTTOM LINE: The reference class strongly favors "No": professional forecaster consensus (Blue Chip, Philly Fed SPF, Fed SEP) has consistently clustered CPI YoY for 2026 in the 2.8%-3.7% range even after accounting for the mid-year energy shock, and the actual realized 2026 peak (4.2% in May) already fell short of 4.5% and has since receded to the mid-3% range with no nowcasts or consensus forecasts pointing back above 4.5% for the remaining Oct-Dec 2026 prints; historically, CPI readings above 4.5% have required major demand or supply shocks (2021-23 pandemic/energy cycle), not routine conditions.

YES means: at least one of the remaining 2026 BLS CPI (CPI-U) year‑over‑year headline prints — for September (Oct 14), October (Nov 10), or November (Dec 10) — comes in above 4.5%, which would resolve this market Yes. - [2026-10-08] A fresh Iran-war escalation risk has emerged: The Atlantic reported, and CBS News confirmed, "Oil Prices surge as US President Trump warns of escalation against Iran... Brent crude prices jumped by as much as 8 per cent... to over 109 dollar a barrel" language echoing the current moment, and as of Oct 8 CBS reported "The price of Brent crude oil, the global benchmark, jumped over $105 per barrel Thursday after The Atlantic reported President Trump is weighing whether to order a resumption of attacks on Iran ahead of next month's U.S. midterm elections" , a concrete near-term mechanism for a renewed energy-driven CPI spike before the question closes. https://cbsnews.com/live-updates/iran-war-nuclear-donald-trump-vance-rubio-strait-of-hormuz - [2026-10-08] The same report notes the Pentagon has been asked to prepare options, with "top oil officials warned that global reserves were running worryingly low" , meaning any actual strike could push oil sharply higher with less spare-capacity buffer than in earlier 2026 shocks. https://cbsnews.com/live-updates/iran-war-nuclear-donald-trump-vance-rubio-strait-of-hormuz - [2026-10-06] EIA's October Short-Term Energy Outlook shows a material upward revision versus just a month earlier: "Brent crude oil spot price (dollars per gallon) · $96 · $84 / Previous forecast · $91 · $74 / Percentage change · 6% · 14%" for 2026/2027, confirming the energy-price trajectory is still being revised up, not down. https://www.eia.gov/outlooks/steo/pdf/steo_full.pdf - [2026-10-06] EIA confirms actual September pump prices already spiked hard: "U.S. retail gasoline and diesel prices rose sharply in September; gasoline prices averaged $4.35 per gallon (gal), and diesel prices averaged $6.29/gal, driven by higher crude oil prices and rising crack spreads. Additional upward pressure on crude oil prices stems from extreme tightness in diesel markets" — a real, already-realized input that feeds directly into the upcoming September CPI print (due Oct 14) and could extend into October/November data if the renewed Iran escalation materializes. https://www.eia.gov/outlooks/steo/ - [2026-10-02] A Yahoo Finance report citing the Cleveland Fed's nowcast shows inflation pressure broadening beyond energy: "The Inflation Nowcasting tool is forecasting an annualized PCE of 3.78% in August and 3.97% in September, up from a reported 3.7% in July... Core PCE, which excludes volatile food and energy costs, is expected to tick up from a reported 3.3% in July to an estimated 3.4% in August and 3.49% in September" , indicating the disinflation in core has been stalling, not just a one-off energy spike. https://finance.yahoo.com/economy/policy/articles/uh-oh-latest-september-inflation-082601637.html - [2026-09-11] PNC's post-August-CPI note documents the Fed treating the print as inflationary enough to hike, not cut: "CPI accelerated in August, increasing 0.29% on the month in the firmest inflation print since April. Over the past twelve months, there has been only one monthly inflation reading consistent with the Fed's 2% target" , and PNC explicitly flagged "continued risks stemming from the Iran conflict. Airfares, in particular, came in warmer than expected in both PPI and CPI, helping to support an acceleration" — a second-round inflation channel (travel/transport costs) beyond gasoline alone. https://www.pnc.com/content/dam/pnc-com/pdf/aboutpnc/EconomicReports/EconomicUpdates/2026/PNC_Economics_Research_CPI_11_September_2026.pdf - [2026-08-12 PIIE blog, undated 2026] Lazard's Peter Orszag and PIIE's Adam Posen argue consensus is "premature," stating "it is more likely that inflation will surprise to the upside—potentially exceeding 4 percent by the end of 2026... The core drivers are the lagged effects of tariffs, an expansion in the fiscal deficit... a tighter labor market reflecting the effects of the shift in immigration policy, monetary policy that is looser than commonly appreciated, and inflationary expectations that are drifting upwards" — a credible institutional case for a renewed leg higher that, combined with a fresh oil shock, could push a single print past 4.5%. https://piie.com/blogs/realtime-economics/2026/risk-higher-us-inflation-2026 - [2026-07-xx] RBC's house view flagged that pipeline pressure from producer prices had not fully passed through: "Producer prices rose 5.5% year-over-year in June, and leading indicator of finished consumer goods inflation is elevated at 3.6% y/y. The gap between core goods CPI and finished consumer goods PPI suggests consumer prices still face pressure in the pipeline" , implying further tariff/goods pass-through could compound with any new energy shock. https://www.rbc.com/en/economics/us-analysis/us-featured-analysis/july-executive-briefing-three-risks-facing-the-us-in-the-second-half-of-2026/ - [2026-10-05/ongoing] Independent CPI preview trackers still peg September headline near 3.6-3.7% (Nowflation ensemble 3.58%, Street consensus 3.70%) and October nowcast at 3.63% (Cleveland Fed), meaning the YES path requires a further ~0.8-0.9pp jump beyond current nowcasts within two to three releases — a large but not unprecedented move given May 2026's energy-driven jump to 4.2% from 3.8% in one month. https://nowflation.com/cpi-preview/september-2026; https://www.clevelandfed.org/indicators-and-data/inflation-nowcasting - [2026-10-07] Reuters-sourced wire coverage (via The Star) shows supply-side compounding risk beyond Iran: "US forecasters said on Tuesday a storm forming in the Gulf of Mexico would become the first Atlantic hurricane of 2026 within two days and would likely hit oil and gas producing facilities" , which could add a second, simultaneous domestic supply shock to an already-tight energy market right as the September CPI data is being finalized. https://www.thestar.com.my/business/business-news/2026/10/07/oil-prices-rise-as-storms-and-air-strikes-threaten-supply BOTTOM LINE: The single most plausible YES path is a renewed, more severe energy shock — a resumed U.S.-Iran war (explicitly under White House consideration per the Oct 8 Atlantic/CBS reporting) layered on already-elevated September gasoline/diesel prices and a Gulf hurricane threat — pushing headline CPI YoY sharply above the current ~3.6% trajectory and the May 2026 high of 4.2%, a jump large enough (but not unprecedented given this year's own April→May move) to clear 4.5% in one of the three remaining 2026 prints (Sep/Oct/Nov data, released Oct 14, Nov 10, Dec 10). NOT FOUND: No forecaster, nowcast, or market currently prices a specific print above 4.5% for any remaining 2026 month; no confirmation that a new Iran strike has actually occurred (only that it is reportedly "under consideration" as of Oct 8); no BLS data yet reflecting the early-October oil spike.

YES means: at least one official BLS CPI-U year-over-year print covering any month in 2026 is reported above 4.5%, as released at any point up to the Jan 1, 2027 market close. - [2026-10-07] Continuum Economics' preview for the Oct 14 release projects September CPI to rise 0.6% m/m, which they say would push the YoY rate to 3.7% from 3.4% — "Overall CPI however looks set to bounce to 3.7% yr/yr from 3.4%, and that would be a four-month high." Even this "four-month high" scenario sits 0.8pp below the 4.5% threshold. - [2026-10-04] A CPI preview for the same release notes the acceleration is concentrated in energy, not broad-based: the Cleveland Fed's nowcast has headline inflation rising to 3.6% while core inflation holds near 2.4%; energy is pushing the headline up, everything else is behaving. - [2026-10-07] Fresh upside-risk evidence on energy has already been absorbed into nowcasts without pushing them near 4.5%: the EIA just raised its forecast for the average price of Brent crude oil in the fourth quarter of 2026 to $105 a barrel, from $91 a barrel in its September report , citing constrained Middle East supply, yet the Cleveland Fed's same-week headline CPI nowcast for October sits at only 3.63% YoY — i.e., a real, fresh energy shock is already priced in and still falls far short. - [2026-10-06] The EIA itself flagged the forecast's fragility, noting the forecasts in the report were completed on Oct. 1 and do not reflect additional supply following the G7 announcement on Oct. 2 , meaning the latest information may already be pulling oil prices back down, not up — a stabilizing rather than inflationary signal for the remaining prints. - [2026-10-07] Separately, the EIA's gasoline/diesel price path for Q4 2026 (per the same STEO) still shows prices only modestly elevated versus summer levels, not a repeat of the spring 2026 energy spike that drove May's 4.2% peak. - [2026-09-02] Funding-timeline arithmetic further favors NO: the current continuing resolution funds the government only through December 11 , but all three remaining BLS CPI releases before the Jan 1, 2027 close — Oct 14, Nov 10, and Dec 10 — fall before that date, so even if a shutdown begins Dec 12 it cannot disrupt or delay any of the releases that could resolve this market. - [2026-09-26] One forecaster puts the odds of a lapse specifically in the Dec 12-31 window at "Probably not, but it is a real risk. TPG puts the chance of a shutdown starting between December 12 and December 31, 2026 at 24 percent." — even in that scenario, it falls after all scheduled 2026 CPI prints, so it could at most block a late correction/revision, not create a new above-4.5% reading. - [2026-10-01] A separate shutdown-risk piece argues the probability is "exceptionally high" that funding lapses on Dec 11, but even this source agrees the mechanics only create "immediate data blackouts, two-phase USD volatility, and massive midnight rollover liquidity gaps" after that date — again, after the last relevant CPI print for this market. - [2026-10-07] Independent model-based forecasts (Long Forecast) project CPI drifting only slightly higher through year-end: Updated 2026/10/01, the current US CPI rate is 3.4%, forecast for October 3.400%, maximum 3.646% , and November's forecast ceiling is similarly capped in the mid-3% range — no independent model anticipates a 4.5% breach. - [2026-10-08] Historically, every time 2026 CPI YoY flirted with multi-year highs (April-May energy shock), the realized peak (4.2%) still fell short of 4.5% even amid an acute Iran-related oil shock; the current Q4 energy risk, while real, is smaller in magnitude (Brent ~$105 forecast vs. the ~$106+ spring peak that drove the 4.2% print), implying a lower ceiling this time, not a higher one. BOTTOM LINE: Every forward-looking input — nowcasts, bank previews, EIA's own freshly upgraded (and already-dated) oil forecast, and independent statistical models — converges on a 3.4%-3.7% CPI YoY path through year-end, roughly a full percentage point under the 4.5% bar; and the funding calendar guarantees all three remaining 2026 CPI releases print before any possible December shutdown could interfere, closing off the main residual tail risk to NO. NOT FOUND: No analyst note, bank CPI preview, or nowcast model found projecting any 2026 monthly YoY print above 4.0% for the remaining Oct-Dec releases; no evidence of a shutdown or data-collection disruption affecting the Oct 14, Nov 10, or Dec 10 2026 release dates.