March CPI jumps

U.S. inflation did not just tick up in March. The Consumer Price Index jumped 0.9% in a single month and 3.3% from a year earlier, after running at 2.4% in February. (bls.gov) That is a sharp move for one report. Core inflation, which strips out food and energy, also rose to 2.6% year over year in March from 2.5% in February, so this was not only a gasoline story. (bls.gov) The biggest spark was energy. Bureau of Labor Statistics data show the energy index jumped 9.4% in March alone, with gasoline up 16.6% in a month and 20.7% from a year earlier. (bls.gov) That oil shock traces back to the Middle East. Analysts at FXStreet said crude prices surged after the United States and Israel launched a joint attack on Iran, and they flagged energy as the main reason March inflation was expected to leap. (fxstreet.com) Once fuel gets more expensive, it spreads fast. Diesel raises trucking costs, jet fuel raises air cargo costs, and factories paying more for power and transport start passing those costs into shelf prices a few weeks or months later. (bls.gov, fxstreet.com) Tariffs are the second channel. Royal Bank of Canada wrote on April 9 that the United States ran a record $1.23 trillion goods trade deficit in 2025, even after tariffs cut imports from China, because buyers shifted orders to other countries instead of eliminating demand. (rbc.com) That rerouting is not free. A part that used to come straight from one factory can end up taking a longer path through a different supplier, a different port, and a different shipping lane, which adds cost before the item ever reaches an American store. (rbc.com) The March report already shows goods prices stirring again. New vehicle prices rose 0.4% in March, apparel rose 0.4%, and household furnishings and operations rose 0.3%, while shelter rose a milder 0.2%. (bls.gov) That mix matters for companies. When retailers and manufacturers cannot fully pass along higher freight, fuel, and import costs, the squeeze shows up in margins instead of sticker prices, which is why analysts are watching sectors far beyond oil producers. (rbc.com, fxstreet.com) The Federal Reserve now has a harder job than it did a month ago. Inflation at 3.3% is moving away from the central bank’s 2% target, and a price shock caused by oil and trade friction is the kind that interest rates do not fix quickly. (bls.gov, fxstreet.com) So March looks less like a one-off blip and more like the bill arriving for two separate disruptions at once: a sudden energy spike from war and a slower cost buildup from tariffs and redirected supply chains. (bls.gov, rbc.com, fxstreet.com)