When the Commerce Department releases retail sales data for March and April, the numbers will almost certainly look strong. Analysts will point to year-over-year growth. Optimists will call it resilience. Equity desks will cite it as a reason to stay long on consumer discretionary.
Don't let the headline fool you.
eMarketer revised its 2026 U.S. retail sales forecast this week, pushing the overall growth projection from its base case of 3.4% to a new scenario estimate of 4.8%. The reason for the upgrade has almost nothing to do with consumers spending more freely — it has everything to do with gasoline prices crossing $4 per gallon and staying there.
The Inflation Illusion in Retail Data
Here's the mechanical problem: retail sales data, as reported by the Census Bureau, is not adjusted for inflation. When gasoline prices surge — Brent crude is up more than 45% since the Iran conflict began in late February, according to Fortune — consumers are spending more dollars at the pump. Those dollars count as retail sales. The headline number goes up. Consumer purchasing power goes down.
"Higher gasoline and utility costs act like a tax on households by reducing real disposable income," Moody's analysts wrote in a note cited by Modern Retail. "As consumers spend more on essential goods and services, they will curb spending elsewhere."
The February retail sales report — released April 1, before any Iran war effects hit — showed solid 0.6% monthly growth, per the Census Bureau. U.S. News noted that the data entirely predates the conflict and that "the real test for consumer spending is still coming." The March and April reports, when they arrive, will have baked-in fuel inflation that makes the numbers look stronger than underlying demand actually is.
Where the Squeeze Shows Up
John Mercer of Coresight Research has estimated that a 20% gasoline price increase costs consumers an extra $6.3 billion per month compared to the prior year. With prices now up roughly 30–45% since before the Iran conflict, the math is stark. That's money that isn't going to clothing, home goods, electronics, or restaurants.
The K-shaped effect is sharp here. Fortune reports that higher-income households — which spend a smaller share of income on fuel — are relatively insulated. The broad middle and lower-income consumers, who spend a larger proportion of their earnings on transportation and food, face a real income shock. When fuel costs approach 4–5% of household income, economists have observed sharp pullbacks in discretionary spending. At the current $4+ national average, that threshold is close.
Retail categories most exposed: clothing, footwear, beauty, electronics, and home goods — essentially everything outside essential food and pharmaceuticals.
The Forecast Paradox
eMarketer's revised 4.8% scenario isn't a bullish call on retail health. It's a statistical artifact of an economy dealing with an oil shock. The firm notes that core retail sales — excluding fuel — would likely experience slowdown even as the top-line number rises.
For retailers, this creates a specific challenge: aggregate data will suggest things are fine, but category-level performance for discretionary goods will tell a different story. Companies that set strategy based on the headline number risk misreading how their actual customers are behaving.
There's also a pricing feedback loop in play. As we reported yesterday, a KPMG survey found that 55% of retailers plan to raise prices by up to 15% within the next six months. In a world where fuel costs are already eroding discretionary budgets, another wave of product price increases could trigger a more severe pullback than the retail sales data suggests is coming.
The February numbers offered brief relief — a reminder that the consumer was, as recently as five weeks ago, holding up reasonably well. What comes next is being written in real time at gas stations across the country.