The International Monetary Fund cut its growth outlook on Tuesday, warning that the global economy would teeter on the brink of recession if the Iran war worsens and oil stays above $100 per barrel through 2027. That is the language of the apparatus watching the damage from above: a war, an oil market, and ordinary people left to absorb the bill.
Who Pays for the War Economy
In its latest World Economic Outlook, the IMF said the most optimistic reference scenario assumes a short-lived war with Iran and forecasts 3.1% real GDP growth for 2026, down 0.2 percentage points from its January forecast. Under that scenario, oil prices average $82 per barrel for all of 2026, down from recent levels of around $100 for the Brent benchmark futures price. The IMF said that without the Middle East conflict, it would have upgraded its growth outlook by 0.1 percentage point to 3.4% because of a continued technology investment boom, lower interest rates, less severe U.S. tariffs, and fiscal support in some countries.
IMF chief economist Pierre-Olivier Gourinchas told Reuters that the war has created a far bigger risk to the global economy than President Donald Trump's initial wave of steep tariffs did a year ago. He said, "What's happening in the Gulf is potentially much, much larger, and that's what our scenarios are kind of documenting." Under an adverse scenario of a longer conflict that keeps oil prices around $100 per barrel this year and $75 in 2027, the IMF predicts global GDP growth would fall to 2.5% this year.
In the worst-case severe scenario, the IMF said an extended and deepening conflict and much higher oil prices would prompt major financial market dislocations and tighter financial conditions, slashing global growth to 2.0%. The IMF said, "This would mean a close call for a global recession," adding that growth has been below that level only four times since 1980, with the last two severe recessions in 2009, following the financial crisis, and in 2020 as the COVID-19 pandemic raged.
The Bottom of the Chain Takes the Hit
Gourinchas said a number of countries would be in outright recessions under this scenario, with oil prices averaging $110 per barrel in 2026 and $125 in 2027. He said prices at that level for an extended time would also increase expectations "that inflation is here to stay," prompting wider price increases and wage hike demands. He said, "That change in inflation expectations is going to require central banks to step on the brakes and try to bring inflation back down," adding that this may require more pain than in 2022.
The IMF said central banks may be able to "look through" a short-lived energy price surge and hold rates steady amid weaker activity, which would be a de facto monetary easing, but only if inflation expectations remain anchored. Global inflation for 2026 would top 6% in the severe scenario, compared to 4.4% in the most optimistic reference scenario, which is the assumption for the IMF's country and regional growth forecasts.
The IMF shaved its U.S. growth outlook for this year to 2.3%, down just a tenth of a percentage point from January, reflecting the positive effects of tax cuts, the lagged effects of interest rate cuts, and continued AI data center investment, which partly offset higher energy costs. These effects are expected to continue in 2027, with growth now forecast at 2.1%, up a tenth of a point from January.
The euro zone, still struggling with higher energy prices caused by Russia's 2022 invasion of Ukraine, takes a bigger hit from the Middle East conflict, with its growth outlook falling 0.2 percentage points in both years to 1.1% in 2026 and 1.2% for 2027. Japan's growth is largely unchanged under the most benign scenario at a weak 0.7% for 2026 and 0.6% for 2027, but the IMF said it expects the Bank of Japan to hike rates at a slightly faster pace than anticipated six months ago. The IMF forecast China's growth for 2026 at 4.4%, down a tenth of a point from January, as the higher energy and commodity costs are partly offset by lower U.S. tariff rates and government stimulus measures. It said headwinds from a depressed housing sector, a declining labor force, lower returns on investment, and slower productivity growth will cut China's 2027 growth to 4.0%, unchanged from January.
Regional Damage, Then the Rebound They Hope For
Overall, emerging market and developing economies, where GDP tends to be more dependent on oil inputs, take a bigger hit from the Middle East conflict than advanced economies, with 2026 growth seen falling 0.3 percentage points to 3.9%. Nowhere is this more pronounced than at the epicenter of the conflict in the Middle East and Central Asia region, where 2026 GDP growth will fall by two full percentage points to 1.9% amid widespread infrastructure damage and sharply curtailed energy and commodity exports.
GDP declines for 2026 are forecast at 6.1% in Iran, 8.6% in Qatar, 6.8% in Iraq, 0.6% in Kuwait, and 0.5% in Bahrain. But under the assumption of a short-lived conflict, the region bounces back quickly, with 2027 GDP growth rebounding to 4.6%, a jump of 0.6 percentage points from the January forecasts. The one bright spot amid emerging markets is India, which saw growth upgrades of about a tenth of a percentage point to 6.5% for both 2026 and 2027, due in part to momentum from strong growth at the end of last year and a deal to lower the U.S. tariff rate on Indian imports.
Separately, Iran's oil minister said Iranian oil sales in recent weeks have been favorable and part of the revenue will be allocated to repairing damage to industry caused by wartime attacks. Mohsen Paknejad said oil workers had maintained operations across facilities during the conflict, ensuring oil exports were not halted "even for a single day," including at key export hubs such as Kharg Island. He said last month that the selling price of Iranian crude had significantly increased.