Executive Summary
Before the first bomb fell on Iran on February 28, 2026, the United States appeared to be finally winning its grinding four-year battle against inflation. The Consumer Price Index had held at 2.4% for two consecutive months. Core CPI sat at 2.5%, close to the Fed’s target. Mortgage rates had dipped below 6% for the first time since 2022, lighting a cautious optimism in the housing market. The Federal Reserve was preparing to discuss rate cuts.
Then the Trump administration and the Israeli government launched a joint strike on Iran, without congressional authorization, without UN Security Council approval, and while Iranian and American diplomats were two days removed from an agreement to continue negotiations in Geneva. The Strait of Hormuz, through which one-fifth of the world’s oil supply and roughly one-third of its fertilizer trade flows, was effectively closed.
What followed is, in the words of the International Energy Agency, “the largest supply disruption in the history of the global oil market.” The ripple effects are now tearing through every major US inflation indicator simultaneously: CPI, core CPI, PCE, PPI, food prices, energy prices, housing costs, transportation, manufacturing inputs, and the labor market. No inflation measure is untouched. No sector of the economy is insulated.
This article maps that destruction, indicator by indicator.
The Baseline That Was Destroyed
Understanding the scale of the damage requires understanding what existed before the war began. The inflation story of 2025 and early 2026 was, by any honest measure, one of modest progress. CPI had fallen from its June 2022 peak near 9% and settled at 2.4% through January and February 2026. Core PCE, the Federal Reserve’s preferred inflation gauge, registered 2.8% year-over-year in January, with the monthly reading coming in at 0.3%. Core CPI had reached its slowest pace in nearly five years at 2.5%.
The Federal Reserve had already executed several rate cuts in 2025, and markets had priced in two additional quarter-point reductions in 2026, expected in June and September. Mortgage rates had touched 5.98%, their lowest level since September 2022. Economists at Wells Fargo, Goldman Sachs, and Morgan Stanley all carried cautiously optimistic outlooks for a continued soft landing.
That baseline no longer exists. Navy Federal Credit Union’s chief economist Heather Long put it plainly: “Inflation was starting to ease in late 2025 and early 2026, but that will be short-lived as the war in Iran triggers price increases for energy, food and other items.”
There was also a compounding problem already baked in before the war even started. The Producer Price Index for January 2026 surged 0.8% on core measures month-over-month, driven by a 2.5% leap in trade services margins and a 14.4% explosion in professional equipment wholesaling, reflecting the cumulative pass-through of Trump’s tariff regime into wholesale costs. The war landed on a price structure that was already under strain.
The Energy Channel: Where It Starts and How It Spreads
Every major inflation channel in the US economy runs through oil prices. Goldman Sachs economists Manuel Abecasis and David Mericle identified it in plain terms: “The main transmission channel from the war with Iran to the US economy is the price of oil.”
Oil was trading near $70 per barrel the day before the strikes. Within days it had passed $83, then $91, then broke above $100 for the first time in nearly four years. Brent crude has since fluctuated between $91 and $120, settling around $103 as of March 15. Goldman’s oil team raised its forecast twice in little over a week, now expecting Brent to average $98 for March and April, a level 40% above the 2025 average. The IEA authorized a record release of 400 million barrels from emergency reserves, which temporarily dampened prices, but the strait remains closed and the structural supply gap persists.
Goldman’s analytical rule of thumb: every sustained 10% rise in oil adds 0.2 percentage points to the headline inflation rate and 0.04 percentage points to core inflation. Brent has risen roughly 40% since the conflict began. Morgan Stanley’s math tracks closely: a 10% increase in oil prices adds approximately 0.35 percentage points to headline consumer prices over the following three months, and Royal Bank of Canada warns that a sustained $100 barrel would keep US inflation above 3% for the remainder of the year. Capital Economics forecasts CPI reaching 3.5% by year-end in an extended conflict scenario, up from its pre-war forecast of 2.4%. KPMG’s FOMC scenario analysis shows core PCE inflation breaching 3% under a scenario where oil holds above $100 for three to six months.
Every $10 rise in oil adds approximately 25 cents to gasoline prices at the pump, with larger spillovers into jet fuel, diesel, and fertilizer costs.
Gasoline
The most visible and politically radioactive inflation number in America is the price at the pump. Before the strikes, the national average sat under $3.00 a gallon. Within weeks it had climbed to $3.20, then $3.48, then $3.60, then $3.70. The 10-year Treasury yield’s co-movement with the oil shock has compounded the damage. Gas prices have not been at these levels since 2024.
RSM chief US economist Joe Brusuelas identifies the recession threshold at $4.25 per gallon and oil at $125 per barrel, thresholds the market has already touched briefly and could revisit. University of Chicago energy policy director Sam Ori has identified the historical pattern: when oil reaches 4 to 5% of GDP and remains elevated, “that has always triggered a recession.”
Diesel and Trucking
Diesel, the fuel of commerce, has surged in parallel with crude. Nearly every product that reaches a store shelf in America moves via diesel-powered transport. The price of shipping a truckload of goods has risen sharply, and while specific diesel price figures remain fluid as of mid-March 2026, American Progress analysts note that US infrastructure’s decade of integration with global oil markets means domestic consumers are “more exposed than ever to global fuel interruptions.” Higher trucking costs are now baking additional inflation into every product category in the CPI basket.
Jet Fuel and Air Travel
Jet fuel prices surged over 60% from pre-attack levels to their peak in early March 2026, according to S&P Global Platts pricing data. The Argus US Jet Fuel Index recorded an average price of $3.99 per gallon, up from $2.50 the day before the war began. In practical terms, the cost of fueling a Boeing 737 jumped from $17,000 to over $27,000 in less than a week before partially retreating.
United Airlines CEO Scott Kirby told CNBC that fare increases would “probably start quick.” Airlines face a structural cost problem: jet fuel is the second-largest expense in aviation after labor, representing 20 to 25% of operating costs. Fuel typically accounts for roughly 20 to 30% of total airline expenses, and historically, “airlines have been prompt at raising fares when fuel prices spike.” The travel inflation channel feeds directly into the CPI’s transportation services component.
Natural Gas, Heating, and Electricity
Natural gas prices in the US were already up 10.9% year-over-year in February, driven primarily by a colder-than-average winter, before the war further disrupted global LNG supply. Qatar, which accounts for approximately one-fifth of global LNG supply, halted production entirely after Iranian drone strikes on its Mesaieed and Ras Laffan complexes. European and Asian natural gas prices doubled in response. The change in US domestic natural gas prices has been more muted, as domestic supply constraints limit real-time pass-through from global LNG prices. However, Chatham House analysts note that US retail electricity prices rose nearly 7% in 2025 compared to 2024, double the broader inflation rate, and the structural trajectory was already pointing upward before the war.
Higher electricity costs translate directly into higher costs for industrial production, cold-chain food storage, aluminum smelting, and residential utility bills. Households can expect to see those increases reflected in their bills with a 1 to 3 month lag.
The Food Channel: Multiple Strikes Hitting at Once
The food inflation component of the Iran war is not a single blow. It is a simultaneous assault from at least five distinct directions: fertilizer costs, fuel for transportation and refrigeration, packaging materials, shipping insurance, and the tariff regime that preceded the war and now compounds it.
Groceries Before the War
Food costs were already rising faster than overall inflation in February 2026. CPI food rose 3.1% year-over-year, and food away from home jumped 3.9%. Tariff pass-through had driven food and agriculture tariff collections up 647% in just four months of 2025 compared to 2024. The Chamber of Commerce estimated that American shoppers were already paying roughly 12% more on coffee, tea, and cocoa, 8% more on fish and seafood, 7% more on fruits, and 5% more on meat relative to a no-tariff baseline.
Fertilizer and Farm Input Costs
As detailed in this series, urea prices have surged over 50% year-over-year and more than 43% in two weeks following the closure of the Port of Salalah and the shutdown of QatarEnergy’s production complex. US farmers face a spring planting season with a 25 to 35% fertilizer supply deficit. The National Corn Growers Association warns farmers are looking at “the second most expensive corn crop on record.” Fertilizer costs represent up to 25% of agricultural commodity production costs, meaning a 50% fertilizer price spike translates into a meaningful and unavoidable increase in what farmers pay to grow food and what consumers eventually pay to eat it.
Wolfe Research analysts estimate that the compound effect of higher fertilizer and fuel costs will add approximately 2 percentage points to food-at-home inflation in the United States.
Packaging and Industrial Inputs
The food price channel runs through packaging as well as inputs. Aluminum prices have hit multi-year highs in the US, driven by a combination of Trump’s 50% aluminum import tariffs and war-related energy cost increases, since approximately one-third of aluminum smelting costs are tied to energy. The Midwest Premium surpassed $1 per pound for the first time in January, and the Can Manufacturers Institute stated bluntly: “We expect greater price increases in 2026 than we saw last year.” Research from the University of Cincinnati found that canned foods were already among the categories seeing the sharpest grocery price increases at the end of 2025. The Iran war is layering an additional energy-cost shock on top of an already expensive can of soup.
The Producer Price Index: The Canary That Already Sang
The PPI measures wholesale prices and serves as the clearest leading indicator of what is coming down the pipeline into consumer prices. The January 2026 PPI report, released February 27, just one day before the war began, was already deeply alarming. Core PPI surged 0.8% month-over-month, pushing the annual rate to 3.6%, nearly double the Federal Reserve’s 2% target. Trade services margins jumped 2.5%. Professional equipment wholesaling exploded 14.4%.
This report was driven by tariff pass-through, not yet by the Iran war. The Iran war then arrived as a second freight train on the same track. Oil price inflation feeds into PPI through energy inputs for manufacturing, transportation surcharges on wholesale goods, and higher raw material costs across every commodity category. The March 2026 PPI report will absorb the first full month of war-driven energy costs. Economists forecast it will be significant.
Housing: The Rate Trap Reopened
Housing is the largest single component of the CPI, representing approximately one-third of the index through owners’ equivalent rent and primary rent components. For three consecutive years, elevated mortgage rates depressed housing market activity and kept a ceiling on home prices by limiting the number of buyers who could afford to enter the market.
In late February 2026, mortgage rates had finally dipped below 6% for the first time since September 2022, touching 5.98%. The spring buying season was approaching. Housing economists had tentatively begun to suggest that the worst of the affordability crisis might be passing.
Then the strikes on Iran began. The 10-year Treasury yield, which had sat at 3.96% on February 27, climbed to 4.14% within days and then to 4.25% by March 12. Mortgage rates surged in response to their largest weekly increase since April 2025, climbing from 6% to 6.11% in a single week per Freddie Mac data. Bloomberg called it “the largest weekly increase in almost a year.”
Freddie Mac chief economist Sam Khater noted that the brief dip below 6% had provided real psychological uplift for the housing market. “The outlook for the spring home-buying season has become less optimistic than it was just a month ago.” The 30-year Treasury yield also jumped nearly a quarter of a percentage point since the bombing began. As former Federal Reserve Chair Janet Yellen has warned, depending on how the war affects oil markets, the Fed’s job of containing inflation will become materially more difficult. A Fed that cannot cut rates, or a Fed that is pressured to raise them, means mortgage rates that stay elevated or climb further, locking millions of potential homebuyers out of the market while keeping upward pressure on rents for those who cannot buy.
The Federal Reserve’s Impossible Position
The Federal Reserve’s dual mandate is to maintain price stability and maximum employment. The Iran war is threatening both simultaneously, producing the textbook definition of stagflation: rising prices paired with slowing growth and a weakening labor market.
Before the war, the Fed had already cut rates multiple times in 2025, and markets had priced in two additional cuts in 2026. That expectation has been entirely repriced. Federal funds futures markets now show no cuts anticipated in 2026 at all, down from two cuts priced as recently as February. EY-Parthenon chief economist Gregory Daco stated plainly: “Given our higher headline and core PCE inflation forecast, we have revised our baseline to show only one 0.25-percentage-point rate cut in 2026, likely in December, but it is entirely plausible that the Fed won’t deliver any rate cuts this year.”
Goldman Sachs has pushed its rate cut forecast to September and December at the earliest. Barclays has projected a single quarter-point cut for all of 2026. Morgan Stanley’s Michael Gapen has said the risks are now skewed toward cuts arriving later and being larger only if economic activity materially weakens. High Frequency Economics chief economist Carl Weinberg has gone further, arguing the Fed should consider raising rates at its March 17-18 meeting to combat the oil-shock inflation he forecasts hitting 3.5% by summer.
Sonu Varghese, chief macro strategist at Carson Group, offered the starkest summary: “An already large headache for the Federal Reserve is going to turn into an even larger one, and it’s likely the Fed will not cut rates in 2026 and may even start talking about rate hikes later this year.”
Goldman’s updated PCE inflation forecast now shows 2.9% year-over-year by December 2026, fully 0.8 percentage points above its pre-war forecast and well above the Fed’s 2% target. Core inflation is forecast at 2.4%, up 0.2 points.
The Federal Open Market Committee’s Summary of Economic Projections, released March 18, will be the first official Fed response to the war’s economic impact. It is expected to revise inflation forecasts upward and growth forecasts downward.
The Labor Market: A Weakening Foundation Hit by a New Weight
The labor market entered the Iran war in a fragile state that received insufficient attention. The February payroll report, released March 7, showed employers had cut 92,000 jobs, pointing to underlying weakness that economists described as “not in good shape.” Unemployment reached 4.4%. Goldman Sachs economists forecast unemployment peaking at 4.6% in Q4 2026.
The unemployment rate’s interaction with oil price inflation is the core of the stagflation risk. Elevated oil prices raise costs for businesses, which then face the choice of absorbing lower margins, raising prices, or reducing headcount. They tend to do all three. Goldman estimates the oil shock will lower Q4 GDP growth by three-tenths of a percentage point, to 2.2%. Recession odds tracked by prediction markets reached as high as 35% in early March when oil briefly touched $119 a barrel. Goldman’s official estimate sits at 25%. Forbes cites prediction markets at 33%.
University of Michigan economics professor Justin Wolfers framed the threshold: “The US is and has been on the precipice of recession for quite some time. It only requires one thing to knock us over. Could oil do it? Absolutely.”
Capital Group’s US economist Jared Franz offers a more tempered baseline: if oil holds near $85 through the year, US GDP could remain on track to grow 2.8% and unemployment could stabilize in the 4 to 4.5% range. But that projection explicitly assumes oil retreats and does not account for the fertilizer and food inflation channels. “That baseline is fragile if the war drags on,” Franz concedes.
The Tariff Compound Fracture
The Iran war’s inflation shock does not arrive on a clean slate. It arrives on top of a tariff-driven price structure that has already injected persistent cost-push inflation into the American economy. Trump’s tariff regime had already driven food and agriculture tariff collections up 647% in 2025 compared to the prior year. Aluminum prices had already hit multi-year highs before the war began, driven by a 50% import tariff. Core PPI had already spiked to a 3.6% annual rate reflecting tariff pass-through.
KPMG’s March 2026 Economic Compass describes a “butterfly effect”: the convergence of geopolitical shocks and policy uncertainty has narrowed the path to a soft landing and introduced “a new level of uncertainty into an already evolving economic landscape.” The combination of tariff-driven cost-push inflation and war-driven energy and commodity inflation has produced what MarketMinute’s analysts call a “dual shock”: “cost-push inflation from energy supply disruptions and demand-pull pressures from ongoing tariff regimes has created a policy trap for the Federal Reserve.”
This is the context in which every inflation indicator is being measured. The war did not land on a healthy economy. It landed on an economy already laboring under a pre-existing inflationary condition.
The Scenario Range: From Bad to Catastrophic
KPMG’s scenario analysis, produced before March 10, outlines the range of outcomes:
In Scenario 1, the base case, the Strait of Hormuz is closed for several weeks with oil temporarily above $100 per barrel. The administration seeks an off-ramp and tensions ease before the end of March. Oil retreats, though a risk premium lingers. Core PCE inflation ends the year modestly above 2%.
In Scenario 2, the conflict extends for three to six months with more significant damage to regional oil production and infrastructure. Oil temporarily surges above $130 per barrel. Prices do not return to pre-conflict levels until late 2026 or early 2027. MUFG analysts estimate headline inflation rates could peak above 5% in the euro area and UK under this scenario, with a similar dynamic pressuring the US. Capital Economics forecasts US CPI reaching 3.5% by year-end under extended conflict.
The Atlantic cited IEA framing of the current disruption as already the largest in the history of the global oil market. Under any scenario involving prolonged Strait closure, economists across Goldman Sachs, Morgan Stanley, Capital Economics, KPMG, EY-Parthenon, and Capital Group converge on the same conclusion: US inflation returns to the 3 to 3.5% range, the Federal Reserve does not cut rates in 2026, and the risk of stagflation is real and rising.
What This Means for American Households
The American household does not read PCE reports. But it does buy gasoline, pay rent, fill grocery carts, and plan vacations. Here is what the inflation indicators described above mean in lived experience, in March 2026:
The average American is paying roughly 70 cents more per gallon of gasoline than they were a month ago. Jet fuel prices have more than doubled in certain markets since the strikes began, meaning airfares are rising. Mortgage rates have jumped from below 6% to 6.11% in three weeks and are trending higher, adding hundreds of dollars per year to the cost of financing a home purchase. Natural gas prices were already 10.9% above last year before the war began. Electricity bills are expected to rise with a 1 to 3 month lag as higher energy input costs flow through utility pricing.
At the grocery store, the food inflation that was already running at 3.1% annually is now receiving additional upward pressure from fertilizer costs, diesel surcharges, aluminum packaging costs, and tariff-driven import prices compounding simultaneously. Wolfe Research has estimated an additional 2-percentage-point food-at-home inflation increase from the fertilizer and fuel channels alone. As Forbes food analyst Phil Lempert noted, American consumers will not find an “Iran War Surcharge” on their receipt. They will notice coffee that costs slightly more, a can of soup that has risen by 30 cents, and a grocery bill that is harder to explain but unmistakably higher.
The household purchasing power impact is real. Capital Group estimates that if oil holds near $85 a barrel through 2026, Americans’ purchasing power could fall by roughly 0.6%. That is the optimistic scenario.
A War No One Asked For, A Bill Everyone Will Pay
There is a profound moral asymmetry embedded in the economic story told above. The decision to strike Iran was made by two men, Donald Trump and Benjamin Netanyahu, without congressional mandate, without UN authorization, and while peace negotiations were actively proceeding. International law scholars are unambiguous that the strikes violated Article 2(4) of the UN Charter and constitute a crime of aggression under the Rome Statute.
The cost of that decision is now being distributed across every American household through gasoline prices, grocery bills, mortgage rates, and utility costs. It is being distributed across the globe through fertilizer price spikes, famine risk in Sub-Saharan Africa, production shutdowns in India and Pakistan, and a stagflationary drag on every major economy.
Pacific Research Institute economist Wayne Winegarden captured the mechanism: “The war is putting upward pressure on prices for gasoline, electricity, and groceries through higher transportation, packaging and fertilizer costs. This will worsen affordability for families already struggling with the high cost of living.” University of Groningen assistant professor William Figueroa placed it in broader terms: “Gas prices have spiked, mortgage rates are climbing due to fears of increased inflation, and the conflict has driven up the cost of oil and shipping, which risks a global recession.”
The Federal Reserve’s preferred inflation measure was 2.8% in January, already above the 2% target. Core PCE was trending toward 3%. Goldman now forecasts PCE at 2.9% by December and the Fed unable to cut rates until the fall at the earliest. Capital Economics puts CPI at 3.5% under an extended conflict scenario. MUFG analysts warn headline rates could peak above 5% in a severe scenario.
President Trump declared in mid-March, “We won.” The Strait of Hormuz remained closed at the time of writing. Oil sat above $100 a barrel. Urea prices were up 52% year-over-year. Mortgage rates were rising again. Sixty-seven million barrels were burning in emergency reserves rather than replenishing supply chains. And economists across every major financial institution in the world were revising their inflation forecasts upward, their growth forecasts downward, and their rate-cut timelines into the indefinite future.
The price of an unlawful and unplanned war is not paid by those who start it. It is paid by the families paying $3.70 for gasoline, the first-time homebuyer priced out of a spring market that had just become possible, and the corn farmer in Iowa repricing his season against a fertilizer bill no one saw coming. It is paid by 318 million people already in acute hunger before the first bomb fell. It is paid by every economy on Earth, without exception, for months and years to come.
Related reading
- THE BILL COMES DUE: What Every American Will Pay for Washington's War on Iran
- Where’s the Business Plan for Trump's $200 Billion Iran "Ask"?
- Wagering Without Risk: How Washington and Tel Aviv Insiders Bombed Iran on the American Taxpayer's Dime
- How An Unnecessary Iran War Turned A Shaky Economy Into A Crash Test
