Retailers Are Warning: If the Iran War Drags On, Price Hikes Hit Shelves by Summer

Container rates from Asia have surged 150% since the Strait of Hormuz crisis began in late February. Next has already booked £15 million in additional costs. H&M says pressure is building. And the 90-to-180-day lag between shipping spikes and shelf prices means American consumers will start feeling it by June.

The retail industry just got a new supply chain crisis to manage — and this one comes with a ticking clock.

Since the U.S.-Iran conflict escalated on February 28 and effectively shut down the Strait of Hormuz as a viable commercial shipping lane, container rates on major global routes have roughly doubled. Asia-to-U.S. West Coast rates, which were running between $1,800 and $2,200 per 40-foot container before the crisis, have surged above $4,500. Spot rates on other major routes have jumped approximately 150%.

The full transmission from container rate spikes to retail shelf prices typically runs on a 90-to-180-day lag. That means the shipping cost surge that began in late February will start showing up in consumer prices by summer — right when retailers are stocking for back-to-school and the critical second half of the year.

Retailers Are Already Doing the Math

British fashion and home retailer Next was among the first to publicly quantify the damage. CNBC reported that the company has booked £15 million (approximately $20 million) in additional costs from fuel and air freight, assuming the disruption lasts three months. But Next's warning came with a caveat that should concern every retailer and consumer: "Beyond the next three months, if we see these costs persist, then we will begin to pass costs through as higher pricing."

H&M struck a similar tone, noting that "current geopolitical instability in the Middle East could, if extended, result in slightly additional cost pressure." The careful corporate language obscures a blunt reality: major retailers are already planning for price increases.

The Double Squeeze

What makes this moment particularly painful for retailers is the compounding effect. Many are still absorbing cost increases from tariffs that gradually raised retail prices through 2025, according to a Federal Reserve analysis published earlier this month. The IEEPA tariff mess — while legally resolved by the Supreme Court — left many importers with higher inventory costs that haven't fully washed through the system.

Now add a shipping cost surge on top. The World Economic Forum noted that the rerouting of vessels around the Cape of Good Hope adds 10 to 14 days to Asia-Europe transit times and substantially increases fuel consumption per voyage. Those costs flow directly to importers — and eventually to consumers.

For retailers already operating on thin margins in a consumer sentiment environment that's deteriorating monthly, the room to absorb additional costs without raising prices is essentially zero.

Who Gets Hit Hardest

Discretionary retailers face the greatest exposure. As CNBC reported, consumers could be "hammered" by the oil price impact alone, with gasoline prices squeezing household budgets and further dampening appetite for non-essential purchases.

Apparel, footwear, home goods, and electronics — categories heavily dependent on Asian manufacturing and ocean freight — are most vulnerable to the shipping cost surge. Grocery retailers face a different but related risk: higher fuel costs raising the price of domestic distribution, on top of food prices that are already outpacing wages.

The retailers best positioned to weather the storm are those with diversified supply chains, strong nearshoring relationships, or enough pricing power to pass costs through without losing volume. That list is short: Walmart, Costco, and a handful of others with the scale and sourcing flexibility to adapt quickly.

The Timeline to Watch

The critical window is April through June. If the Iran conflict reaches a resolution or de-escalation in that timeframe, retailers may be able to absorb the shipping spike as a one-time cost without permanent price adjustments. But if the Strait of Hormuz remains effectively closed through the summer, the industry is looking at a structural cost increase that will reshape pricing across categories.

As we reported earlier this week, retail sales are still growing but consumer sentiment is decoupled from spending in a way that suggests fragility. A new round of price hikes driven by geopolitical disruption could be the catalyst that finally converts pessimism into an actual spending pullback.

The clock is ticking. Summer is 90 days away, and the containers are already on the water.