Treasury News Network

Learn & Share the latest News & Analysis in Corporate Treasury

  1. Home
  2. Risk Management
  3. Tips

If the U.S.–Israel war with Iran widens: Risks for corporates

Armed confrontations and wars destroy human capital, displace communities, and fracture economic systems for years. They also create immediate, compounding shocks for companies that may or may not have a direct footprint in the conflict zone. That is because governments, central banks, corporations, financial markets, global trade routes, insurance, commodities, foreign exchange (FX), and technology infrastructure are tightly interlinked—and increasingly vulnerable to geopolitical spillovers.

The ongoing U.S.–Israel military campaign against Iran is already demonstrating how fast those spillovers can travel. U.S. and Israeli forces have struck targets across Iran, triggering retaliatory strikes around the Gulf, spreading hostilities into Lebanon, and rattling global markets—while also driving a rise in crude oil prices and a major jump in European natural gas prices. Reuters reports that shipping risks have intensified around the Gulf, with tankers dropping anchor rather than attempting passage, while air transport and regional hubs have faced significant disruption.

At the macro level, Oxford Economics notes in its March 3, 2026 briefing (“Iran conflict will rile energy markets, not break them”) that markets are reacting to near-term energy and trade disruption risk, even if the baseline case does not assume a permanent break in global energy systems. In other words, the crisis may not trigger a systemic collapse in energy supply, but it can still inject prolonged volatility into markets and global trade flows. That framing is important for corporates: the most likely business environment is not a single, isolated shock—but a sustained volatility regime across energy, freight, inflation expectations, interest rates, cybersecurity, and safe-haven flows.

If the confrontation widens—through prolonged kinetic operations, additional regional deterioration, or a sustained impairment of shipping lanes—corporates should prepare for a new layer of operational and financial volatility, and amplified impacts along four key channels.

Energy shock returns: oil volatility, inflation persistence, and a higher-for-longer rate outlook

Oil is often the market’s first—and most visible—signal of escalation risk. Global oil prices spiked following U.S.-Israeli attacks on Iran, reflecting investor fears of supply disruptions and inflation resurgence. The Atlantic Council observes that oil rose more than 5% and could surge toward U.S. $100 per barrel if the Strait of Hormuz faces closure pressures, reinforcing how quickly the risk premium can reprice energy.

From a corporate perspective, the issue is not only higher oil prices. The real impact lies in the downstream chain: higher energy costs flow into transportation, petrochemicals, manufacturing inputs, business travel, and ultimately consumer prices. In other words, inflation expectations can re-accelerate just as many central banks were trying to regain room to cut interest rates. Oxford Economics estimates the energy shock could add around 0.3–0.4 percentage points to the U.S. and eurozone CPI inflation in 2026.

This matters for multinational corporations because a resurgence in inflation may delay rate cuts, push bond yields higher, and raise corporate borrowing costs—especially for floating-rate debt and refinancing cycles.

Key actions for corporates

  • Re-run cash flow forecasts and funding plans assuming interest rates remain elevated, accounting for higher interest expense, tighter credit conditions, and softer demand.
  • Stress-test working capital for the impact of rising energy-related input costs, including higher inventory, freight, and supplier pricing volatility.
  • Review fuel and energy hedges, or contract terms that allow cost pass-through, where exposure is significant and margins are sensitive to rising energy prices.

Strait of Hormuz and regional logistics disruption: trade slows, freight costs spike, and supply chains re-fragment

If one geographic node can convert a regional war into a global corporate event, it is the Strait of Hormuz. The Strait of Hormuz lies between Oman and Iran and connects the Persian Gulf with the Gulf of Oman and the Arabian Sea. It is one of the world’s most important shipping routes for international trade and carries around one-fifth of global oil supplies (about 20 million barrels per day).

Oxford Economics states that while the Strait is “technically open,” transit has effectively paused due to security risks and prohibitive insurance costs. Crucially, the constraint is not on production but on trade. Oxford Economics notes that while spare capacity in Saudi Arabia and the UAE can offset lost Iranian production, alternative trade routes can reroute only around a third of normal Strait of Hormuz oil flows.

Gas markets can be even more exposed. The Oxford Economics briefing emphasizes that Qatar—one of the world’s largest LNG exporters—has no alternative route that bypasses the Strait, which can force Asian buyers to compete more aggressively with Europe for LNG cargoes, and hinder Europe’s ability to refill gas storage ahead of winter.

Given that tanker traffic through the Strait has been severely constrained, with ships anchoring rather than attempting passage amid rising risk, Reuters adds that the cost of hiring a tanker to ship oil from the Middle East to Asia has nearly quadrupled since the conflict started, to an all-time high of well over $400,000 a day. This indicates that even when supply exists, the ability to move it safely and insurably has become a binding limitation.

For corporates, the knock-on effects go beyond energy. Freight and war-risk insurance premiums rise, lead times extend, and suppliers reprice contracts.

Key actions for corporates

  • Identify suppliers, products, and shipping routes that depend on the Strait of Hormuz, including refined fuels, LNG, petrochemicals, and critical intermediate inputs moving through Gulf logistics networks.
  • Pre-negotiate alternative freight routes and logistics options, and review contractual contingencies such as delivery flexibility, force majeure provisions, and war-risk insurance premium triggers.
  • Maintain buffer inventory selectively for items with long lead times and single-source dependency—while avoiding excessive stockpiling that could strain cash flow.
  • Update business continuity plans to account for potential air freight (cargo) disruptions, particularly if key Middle East aviation hubs remain constrained.

Cyber escalation: payment rails and third-party systems in the blast radius

Wars increasingly play out across domains, and cyber operations can globalize the risk far faster than physical strikes.

Last week, Reuters reported that U.S. banks are on heightened alert for cyberattacks as the Iran war escalates, with industry groups focusing on operational resilience and warning that distributed denial-of-service (DDoS) and other attacks could rise. The Center for Strategic and International Studies (CSIS) has on March 3, 2026, also warned that cyber operations are likely to be a core component of this hostile environment, with the potential to hit not only government targets but also private-sector infrastructure and third-party providers. Sophos similarly issued an advisory highlighting that organizations should assume elevated cyber risk amid rising tensions and focus on practical defensive measures and resilience.

For corporates, the question of cyber escalation is far from abstract. Treasury and finance functions operate at the intersection of payment initiation and approval workflows, bank connectivity, ERP integrations, third-party finance platforms, and supplier master data —making them attractive targets for invoice fraud, vendor payment diversion, and other financially motivated cyber attacks.

Key actions for corporates

  • Strengthen payment controls immediately. Use dual approvals for payments, verify any changes to supplier bank details through a separate confirmation call, set tighter payment limits, and ensure banks can quickly stop suspicious transactions.
  • Review the cyber resilience of key vendors and financial service providers. Ask critical vendors to demonstrate their security controls, monitoring capabilities, and incident-response arrangements.
  • Test liquidity continuity plans. Ensure the company can still process payroll and pay critical suppliers if primary payment systems or banking channels are disrupted for 24–72 hours.
  • Increase monitoring for cyber threats. Watch closely for DDoS attacks and credential-based attacks targeting treasury portals, bank connectivity, and vendor access systems.

Safe-haven flows: gold strengthens, the dollar firms, and FX volatility hits earnings and funding

During periods of geopolitical unrest, gold consistently stands out as one of the world’s most trusted safe-haven assets.

Reuters reported last week that gold prices rose on renewed safe-haven demand as the U.S.-Israel conflict with Iran intensified. Spot gold—the current market price of the metal—rose 0.7% to $5,120.71 per ounce, while U.S. gold futures for April delivery settled 0.2% higher at $5,134.70.

This renewed geopolitical risk reinforces gold’s role as a hedge against political and economic uncertainty and could spark an uptick in the precious metal as investors seek reliable stores of value if the war deepens or more countries are drawn in.

Gold and the U.S. dollar often move in opposite directions. However, during periods of geopolitical stress or war, investors typically gravitate toward safe-haven assets—including the U.S. dollar—because of its status as the world’s dominant reserve currency and the depth and liquidity of U.S. financial markets.

If the situation worsens further, this flight to safety could strengthen the dollar. Supporting this trend, The Independent reported last week that the U.S. dollar gained against major currencies such as the euro, yen, and Swiss franc, driven by rising energy prices and increased safe-haven demand.

For corporates, a stronger dollar is not universally helpful. U.S. multinationals may face translation headwinds when foreign revenues are converted back into U.S. dollars, while non-U.S. corporates with USD-denominated liabilities could see debt-servicing costs increase. Meanwhile, elevated FX volatility can raise hedging costs and complicate pricing and financial planning.

Key actions for corporates

  • Review FX hedging on near-term revenues and costs, especially for currencies that may become volatile or are linked to commodity prices.
  • Ensure sufficient liquidity in the right currencies. Confirm that credit lines, cash pools, and reserves can cover potential U.S. dollar outflows such as fuel, freight, and other dollar-priced commodities.
  • Assess how a stronger U.S. dollar combined with higher commodity prices could affect margins, particularly for companies that rely heavily on imported inputs.

The cost of war is already visible—and it compounds quickly if the military campaign widens

Even before a wider war scenario, the direct economic costs are mounting. Reuters reports that Israel’s Finance Ministry estimates the damage to Israel’s economy from the air war with Iran could reach more than 9 billion shekels per week (about $2.93 billion) under current restrictions.

On the U.S. side, The Independent states (citing the analysis of Kent Smetters, faculty director of the Penn Wharton Budget Model) that the war could cost the American economy as much as $210 billion, depending on the duration and nature of the armed conflict.

For corporate leaders, these figures matter not just as headlines, but as indicators of how quickly policy responses, risk controls, insurance markets, and investor sentiment can shift—affecting everything from credit spreads to supply chain costs.

Conclusion

A wider U.S.–Israel military confrontation with Iran would not remain a regional event in corporate terms. It would likely manifest as an extended period of volatility across global markets—marked by swings in energy prices, rising freight and insurance costs, renewed inflation uncertainty, delayed interest rate cuts, heightened cyber risks, and stronger demand for safe-haven assets such as gold and the U.S. dollar.

For corporates operating in an interconnected global economy, these ripple effects can quickly move beyond the battlefield, shaping funding conditions, supply chains, currency movements, and overall business confidence.

In such an environment, resilience will depend on preparation rather than prediction. Companies should strengthen liquidity planning, reassess supply-chain dependencies, reinforce cybersecurity defences, and revisit hedging strategies for both energy and foreign exchange exposures. While the trajectory and duration of the conflict remain uncertain, the likelihood of months of disruption rather than days of market turbulence suggests that corporates must remain vigilant, flexible, and proactive in managing risk.

History keeps teaching the same hard lesson: in major warfare, even “victors” pay. The human toll is immeasurable, and the economic burden extends far beyond the battlefield—touching corporate cash flows, supply chains, and financial stability in corners of the world that may seem far removed, until they are not.

Like this item? Get our Weekly Update newsletter. Subscribe today

About the author

Also see

Add a comment

New comment submissions are moderated.