The US-Iran War Is Already Hitting Small Business Costs - Here's How

Disclaimer: I'm not a licensed financial advisor, and this article is for informational purposes only. It's not intended as personalized financial or business guidance. Please consult a qualified professional for advice specific to your situation.

I think a lot of small business owners heard the news about the war between the US and Iran and assumed it was something happening far away, on the other side of the world, with no real connection to their own bottom line. I understand that instinct, but the numbers tell a different story.

Since fighting broke out in late February 2026, the ripple effects have shown up in fuel invoices, shipping surcharges, insurance renewals, and material costs for businesses that have nothing to do with the Middle East and never expected to feel this conflict directly.

I want to walk through what's actually happening, why a war fought thousands of miles away is landing on small business balance sheets here, and what I think owners can realistically do about it.

What's Actually Happening

The conflict began on February 28, 2026, when US and Israeli strikes targeted Iranian military and leadership figures.

Iran responded by threatening, and at multiple points partially closing, the Strait of Hormuz, the narrow waterway between Iran and Oman that roughly 20% of the world's oil supply passes through.

When that route becomes unreliable, oil prices react almost immediately, since traders have to price in the risk of a much larger supply disruption even before one fully materializes.

A ceasefire was reached in early April, but it has proven fragile. It broke down and was renegotiated more than once over the following months, including a more formal memorandum of understanding signed in mid-June.

That agreement collapsed again in early July after Iran struck several commercial vessels in the strait and the US responded with renewed strikes.

As of this writing, the situation remains unresolved, with both sides continuing talks while sporadic strikes continue.

I'm not going to get into the politics or military strategy behind any of this. What I want to focus on is the part that's measurable and directly relevant to business owners, which is the economic fallout.

Why the Strait of Hormuz Matters So Much

If you've never thought much about global shipping routes, here's the short version of why this particular chokepoint matters so much.

A huge share of the world's crude oil and liquefied natural gas passes through the Strait of Hormuz on its way from Gulf producers to the rest of the world.

When Iran threatens or restricts passage through it, insurers, shippers, and oil traders all react at once.

During the most intense periods of the conflict, multiple major marine insurers canceled war-risk coverage for vessels transiting the strait, and shipping companies including Maersk paused crossings entirely.

Dozens of tankers were left anchored in open Gulf waters waiting for the situation to stabilize.

Brent crude oil briefly spiked above $119 a barrel during one of the sharper escalations, and diesel and jet fuel prices climbed enough that companies like Amazon and JetBlue added fuel surcharges to offset the cost.

None of that is abstract for a business that depends on trucking, shipping, or any kind of fuel-intensive operation.

Higher oil prices don't just affect gas station prices. They ripple into the cost of everything that gets manufactured, packaged, or transported using fuel along the way.

The Numbers Behind the Strain

I think it's worth looking at the actual data here rather than just the anecdotes, because the scale of the impact is broader than a lot of people realize.

A survey by the National Association for Business Economics found that nearly half of responding business economists said the conflict had negatively affected their operations, and 54% specifically pointed to rising energy prices as a factor.

More than two-thirds reported steeper material costs over the preceding three months, the highest level the organization had recorded since July 2022.

Roughly a quarter of respondents said they planned to scale back hiring and investment over the following six months.

Separately, the US Chamber of Commerce's small business survey found that hiring plans and investment intentions both declined in the first quarter of 2026 compared to the previous quarter, with business owners specifically citing rising costs.

Their Small Business Index dropped from 68.4 to 67 over that period. It's a modest decline in isolation, but it reflects a broader mood of caution that's been building as the conflict has dragged on longer than many expected.

I'd also point out that this wasn't happening in a vacuum. Small businesses were already dealing with tariff-related cost increases before the war even started, and for a lot of owners, the added pressure from fuel and shipping costs is landing on top of margins that were already thin.

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How These Costs Actually Show Up for a Small Business

I think it helps to break this down into the specific ways it hits a business, because it rarely arrives as one obvious line item.

Fuel and shipping surcharges

If your business depends on trucking, delivery, or receiving inventory by ship or freight, you're likely already seeing new fuel surcharges appear on invoices.

Carriers use these surcharges to manage their own exposure to volatile oil prices, but for the business receiving the bill, it feels like an unavoidable new cost that shows up on every shipment with no easy way to negotiate around it.

Rising material costs

Higher energy prices don't stay contained to fuel. They tend to work their way into the cost of raw materials, packaging, and anything else that requires energy to produce or transport, which is part of why so many business economists reported steeper material expenses over the same period.

Insurance gaps

This is the part I think catches the most business owners off guard.

Most standard commercial insurance policies include a war exclusion clause, meaning losses tied to war or geopolitical conflict typically aren't covered, even when the impact shows up as something mundane like a supply delay or a spike in operating costs.

A lot of owners don't realize this gap exists until they actually try to file a claim related to a supply chain disruption and find out their policy doesn't apply.

Softer consumer spending

When energy prices rise broadly across the economy, it acts something like an invisible tax on consumers, since higher gas prices and higher costs for goods leave less discretionary income for everything else.

Discretionary spending is typically the first thing to slow down in situations like this, which means some small businesses are dealing with rising costs and softening demand at the same time, a genuinely difficult combination to manage.

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What I'd Recommend Business Owners Actually Do

I don't think panic is a useful response here, but I do think proactive planning matters more right now than it did a year ago.

Start by reviewing your insurance coverage closely, specifically looking for war exclusion clauses and gaps around business interruption and supply chain disruption.

Understanding what isn't covered is just as important as knowing what is, and it's much better to find that out now than in the middle of an actual claim.

Take a hard look at your supplier and shipping dependencies.

If a meaningful share of your costs are tied to fuel-intensive shipping or materials sourced through affected trade routes, it's worth having a conversation with your suppliers now about how they're managing these cost increases, and whether alternative routes or suppliers might reduce your exposure.

Be cautious about how you handle pricing. A lot of business owners are understandably reluctant to raise prices right now, worried about pricing themselves out of the market while consumers are already feeling squeezed.

That's a real tension without an easy answer, but absorbing every cost increase indefinitely isn't sustainable either.

I'd encourage tracking your margins closely enough that you know exactly how much room you actually have before you need to act.

Build in a cash buffer if you can. Given how unpredictable this conflict has been, with ceasefires forming and then collapsing multiple times already, I think it's reasonable to plan for continued volatility rather than assume a quick resolution.

Having some financial cushion gives you room to absorb a rough quarter without making rushed decisions.

Stay informed, but don't overreact to every headline. The situation has shifted several times already, sometimes within the same week.

Reacting to every escalation with a major operational change is likely to cause more disruption than the events themselves. I'd focus on the underlying cost trends over weeks and months rather than the day-to-day news cycle.

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Conclusion

I think the honest takeaway here is that this conflict has already had a measurable, documented impact on small business costs, and given how unresolved the situation remains, it's reasonable to expect that pressure to continue for a while longer.

The businesses that come through this in the best position probably won't be the ones that guess correctly about how the war ends.

They'll be the ones that took a clear-eyed look at their own cost exposure, closed the gaps in their insurance and planning, and built in enough flexibility to adjust as things continue to shift.

About the Author: Ron Tucker covers business growth, entrepreneurship, and scaling strategy, with a focus on the operational decisions that separate businesses that grow from ones that stall. He writes for founders and small business owners looking for practical, not theoretical, guidance on building a business.