Former US President Donald Trump has floated the idea that Washington could start charging countries for using the Strait of Hormuz if tensions with Iran intensify. The comments, reported by Al Jazeera, revive long‑running debates over global trade security and freedom of navigation in one of the planet’s most critical maritime chokepoints. In doing so, they raise fresh concerns about whether key sea lanes could be turned into tools of geopolitical leverage rather than guaranteed public goods. The notion marks a sharp break with decades of US policy, in which the American Navy has protected international shipping lanes without directly billing foreign users, and it has drawn scrutiny from diplomats, legal experts, and energy analysts worried about the broader consequences.
Trump’s Strait of Hormuz fee idea and the shifting debate on US security guarantees
Trump’s suggestion that Washington might impose charges on commercial vessels transiting the Strait of Hormuz challenges the traditional assumption that maritime security in the Gulf is a shared global responsibility funded primarily by the United States. For years, American taxpayers have effectively subsidised the safe passage of foreign‑flagged tankers and container ships through the region, on the grounds that uninterrupted flows of oil and trade benefit the entire international economy.
By framing protection as a service that could carry a price tag, the proposal pushes a distinctly transactional vision of security. Allies and competitors now face a new question: could access to vital sea lanes like the Strait of Hormuz become a fee‑for‑service arrangement, subject to US political decisions? Gulf monarchies that rely heavily on oil exports via this corridor are particularly sensitive to the potential fallout, as any disruption or extra cost could reverberate through their economies and their relationships with both Washington and Tehran.
The debate is taking place against a backdrop of already elevated maritime risk. Since 2019, a series of tanker incidents, drone attacks, and sanctions disputes have made insurers, shipowners, and charterers more cautious about Gulf routes. In 2023, roughly one‑fifth of the world’s crude oil and about one‑third of global liquefied natural gas (LNG) trade moved through the Strait of Hormuz, according to the US Energy Information Administration—underlining why even hypothetical changes to the Strait’s cost structure attract intense scrutiny.
From “public good” to “pay‑to‑protect”? Emerging points of friction
Maritime and security experts warn that a move toward a “pay‑to‑protect” framework could have far‑reaching ripple effects, not only in the Gulf but across other strategic chokepoints. Once a major naval power begins explicitly monetising its patrols, other coastal states or regional navies might feel emboldened to explore similar policies, reshaping how the world understands the cost and governance of open sea lanes.
Key issues in the unfolding debate include:
- Cost‑sharing pressure: US policymakers may seek greater financial contributions from major importing economies—particularly in Europe and Asia—arguing that they should bear more of the burden of securing the energy lifelines they depend on.
- Legal uncertainty: Shipowners and charterers worry about potential clashes with international norms that guarantee navigation rights, unsure whether additional fees would be compatible with global maritime law.
- Regional political reactions: Gulf producers must balance the economic appeal of a stable, US‑secured waterway against the risk that new fees could inflame tensions with Iran or push buyers to explore alternative routes and suppliers.
| Stakeholder | Core Concern | Probable Response |
|---|---|---|
| US Allies in Europe | Rising energy import and freight costs | Advocate coordinated, multilateral solutions |
| Asian Importers | Continuity and reliability of Gulf oil flows | Pursue quiet diplomacy while reassessing cost exposure |
| Shipping Companies | Additional transit charges and legal ambiguity | Lobby for clear rules and consider route optimisation or diversion |
Strategic and legal fault lines: US–Iran tensions and international maritime law
The notion that Washington could directly charge for commercial transit through one of the world’s most important chokepoints runs into foundational principles of modern maritime governance. The UN Convention on the Law of the Sea (UNCLOS) enshrines freedom of navigation and the concept of transit passage through international straits—rules designed to ensure that coastal states cannot arbitrarily restrict or monetise access for peaceful commerce.
Legal analysts caution that even if framed as a “security cost recovery” fee for US naval operations, a unilateral American charge would blur the distinction between legitimate security measures and toll‑like exactions. If such fees were normalised, other states bordering busy lanes—such as the Strait of Malacca, Bab el‑Mandeb, or the Bosphorus—might feel justified in imposing comparable levies on passing cargoes, gradually eroding the universality of navigation rights.
Key legal doctrines under the microscope include:
- Innocent passage: The right of ships to traverse territorial seas so long as they do not threaten the peace, good order, or security of the coastal state.
- Transit passage: A more robust regime that applies to international straits, allowing continuous and expeditious transit for ships and aircraft engaged in international navigation.
As sanctions, counterterrorism measures, and great‑power rivalry become more intertwined with trade flows, these principles are facing mounting stress tests. Any US move to monetise transit in the Strait of Hormuz would almost certainly trigger diplomatic protests and, potentially, legal challenges in international forums.
Fragmentation risks: How norms and markets could be reshaped
Diplomats and industry executives warn that monetising naval protection could fracture longstanding understandings about how the seas are governed. Insurance underwriters, cargo owners, and ship operators would be forced to recalculate their risk exposure, reprice routes, and reassess whether certain passages remain commercially viable.
Possible consequences include:
- Precedent‑setting effects: Other strategically located states could cite a US toll in the Strait of Hormuz as justification for similar policies in narrow seas that handle a large share of global trade.
- More legal battles: Disputes might end up before the International Tribunal for the Law of the Sea or arbitration panels, as stakeholders challenge or defend the legality of new user charges.
- Insurance market repricing: War‑risk and hull insurance premiums could become more sensitive to political policy changes, rather than being driven solely by physical security threats.
- Pressure on flag states: Countries whose flags are widely used by shipping firms may be pressed to take explicit positions on whether such fees are acceptable and whether they will support their fleets in challenging them.
| Key Legal Principle | Potential Consequence |
|---|---|
| Freedom of Navigation | Gradual weakening if transit charges become standard practice |
| Transit Passage | Greater ambiguity over what coastal states may demand from users |
| Collective Security | Shift from shared naval burden‑sharing to transactional access |
Economic shockwaves: Oil markets, freight costs, and global trade under a US fee regime
Should Washington move from rhetoric to implementation and introduce transit fees on tankers and container ships passing through the Strait of Hormuz, financial markets would likely respond quickly. Energy traders and shipping desks closely monitor any change affecting this waterway, as roughly 17–20 million barrels of oil per day, plus significant LNG volumes from Qatar, flow through the strait.
Even a relatively low per‑barrel or per‑vessel levy, compounded across millions of barrels and hundreds of voyages each month, could introduce a new risk premium into global pricing benchmarks such as Brent and WTI. Refiners in Asia and Europe—who are already navigating volatile freight rates and insurance costs due to regional instability—could see their margins squeezed further, particularly for refined products like gasoline, diesel, and jet fuel.
Shipping companies would confront difficult choices. Some might opt for route diversification, sending vessels around the Cape of Good Hope or relying more on alternative loading points outside the Gulf. While such detours can lower exposure to chokepoint risk, they typically involve longer sailing times, higher fuel consumption, and tighter availability of tanker capacity—factors that tend to push up charter rates and, ultimately, consumer prices.
Energy security recalibrated: Importers, contracts, and alternative routes
A unilateral American toll in the Strait of Hormuz would not only affect spot prices, but also energy security strategies and long‑term planning for major importers. Countries in East Asia and Europe that rely heavily on Gulf crude and LNG could respond by accelerating diversification efforts, including:
- Increasing purchases from alternative suppliers such as West Africa, Latin America, the Mediterranean, or the US Gulf Coast.
- Building or drawing on strategic petroleum reserves to smooth out temporary disruptions or price spikes.
- Renegotiating long‑term contracts to incorporate fee‑related contingencies, flexible pricing mechanisms, or destination clauses that spread risk between buyers and sellers.
Market observers highlight several likely knock‑on effects:
- Cost pass‑through: Higher delivered prices for crude, LNG, and refined products, with end‑users and consumers ultimately absorbing much of the additional cost.
- Trade rerouting: Growth in longer, more circuitous shipping routes designed to bypass politically controlled chokepoints whenever feasible.
- Contract reshaping: A shift away from rigid long‑term deals toward more flexible, short‑term arrangements that can adapt to changing toll or security environments.
- Regulatory friction: Greater likelihood of disputes at the World Trade Organization and in maritime regulatory bodies as states challenge or defend new fee structures.
| Scenario | Oil Price Outcome | Trade Pattern Effect |
|---|---|---|
| No new fees | Risk premium shaped mainly by physical and security threats | Shipping routes largely stable, with incremental adjustments to tensions |
| Moderate US fee | Noticeable uptick in benchmark prices | Higher freight costs and selective route diversification |
| Aggressive US fee | Sharp price surge and heightened volatility | Wide‑scale diversion of cargoes and increased contract disputes |
How allies and industry might respond as Washington weighs pricing power and escalation risk
European and Asian partners that depend on Gulf energy are already exploring how they might cushion the blow if the US were to introduce a transit fee, while still preserving overall strategic ties with Washington. Their emerging playbook focuses on targeted, cooperative measures that would manage immediate price and supply shocks without openly confronting the United States.
Policy options under discussion include:
- Designing waiver mechanisms or exemptions for humanitarian and essential cargoes.
- Coordinated strategic petroleum reserve releases to stabilise markets during any sudden spike.
- Developing alternative insurance backstops, potentially supported by states or regional blocs, to ensure that ships facing steep war‑risk or toll‑related premiums can still access coverage.
Industry associations are simultaneously pushing for predictability. Shipowners, energy companies, and traders favour a defined, rules‑based approach over ad‑hoc decisions that could change with each administration. They argue that any new regime—if it emerges—should be anchored as much as possible in existing maritime law and international consultation to avoid chaotic market reactions.
Strategic calculations across the energy and shipping value chain
Different actors along the supply chain are mapping out their own contingency strategies:
- Energy‑importing allies are studying joint purchasing mechanisms or buyer clubs that could help them negotiate better terms or share the burden of any new fees.
- Gulf producers are weighing whether to offer price discounts, flexible contract structures, or volume guarantees to reassure long‑standing customers.
- Shipping consortia are running models on route changes, fleet deployment, and how much added cost can realistically be passed on to charterers and consumers.
- Insurers are preparing tiered war‑risk premium frameworks tied to different levels of political escalation or fee intensity.
| Actor | Main Objective | Preferred Instrument |
|---|---|---|
| EU & Asian Allies | Contain energy price shocks | Coordinated use of oil stocks and joint purchasing |
| Gulf States | Preserve export volumes and market share | Price incentives, flexible supply contracts |
| Shipping Firms | Protect route profitability | Long‑term freight agreements and adaptive routing |
| Refiners | Ensure stable feedstock flows | Diversified sourcing from multiple regions |
At the same time, every attempt to hedge against a potential US toll regime carries its own strategic consequences. NATO members are quietly debating whether non‑US naval missions in the Gulf could reinforce the principle of open sea lanes without signaling endorsement of any fee structure. Some Asian powers, meanwhile, are exploring discreet channels with Tehran aimed at reducing the likelihood of miscalculation or direct confrontation in the Strait.
For global energy and shipping executives, the consensus emerging from recent conferences and analyst briefings is that responses should be highly calibrated. Policymakers are seeking measures robust enough to stabilise markets and reassure investors, yet restrained enough to avoid transforming a revenue‑oriented experiment into a broader contest over control of the world’s maritime chokepoints.
Looking ahead
As discussion continues over whether and how the US might actually implement a fee regime in the Strait of Hormuz, markets and governments alike are on alert. Trump’s remarks have injected a new layer of uncertainty into an already fraught US–Iran standoff, underscoring that any escalation would reverberate well beyond the immediate region. From oil prices and shipping routes to the foundations of international maritime law, the implications of monetising transit through one of the world’s most strategic waterways would be global in scope—and closely watched by both allies and adversaries in the years to come.
