Iran announced on June 19, 2026 that it would pause a new fee it had planned to charge ships passing through the Strait of Hormuz. According to Reuters, the country is giving itself 60 days to negotiate before putting the fee into effect.

This pause is temporary, not permanent. Iran has not dropped the idea of charging tolls on ships passing through the strait. It has simply delayed enforcing the fee while it talks with other countries. That distinction matters because the Strait of Hormuz carries roughly 20 percent of the world's seaborne oil — making it one of the most critical supply lines on the planet. Once Iran formally claims the right to collect fees, every oil tanker operator, insurance company, and energy importer will know that Tehran now sees the waterway as a potential source of revenue.

What Does International Law Say?

Maritime law experts told the New York Times on June 15, 2026 that there is a clear legal difference: while ports can charge for services like pilotage or dock use, a unilateral toll on ships simply passing through an international strait is not permitted under international law. The governing rule comes from the UN Convention on the Law of the Sea (UNCLOS), a treaty that defines what countries can and cannot do in waters near their coasts.

Article 44 of UNCLOS is the relevant part. It says that countries with coasts on an international strait cannot block, hamper, or set requirements that would "deny, impede, or impair" ships passing through. A toll on the passage itself — not for a service rendered, but simply for being there — breaks that rule.

Iran has not signed UNCLOS, which gives it some legal cover to argue the treaty does not apply to it. But that argument has never been accepted by the broader international community. The United States, the European Union, and countries in the Persian Gulf — whose oil exports depend on free passage through the strait — would all immediately push back against such a claim.

What Is the United States Saying?

Secretary of State Marco Rubio stated in May that "the Strait of Hormuz does not belong to Iran and Iran does not have the right to shut it down or lay mines," according to the State Department. These remarks came before Iran announced the fee, but they set out what the U.S. will not accept: any change to how ships can move through the strait.

Rubio's mention of mines is worth noting. It suggests that U.S. officials are already thinking about how this situation could escalate beyond just fees.

Why Does This Matter?

The 60-day negotiation window creates a narrow opening for diplomacy. The fact that Iran chose to pause rather than proceed suggests the country is paying attention to international opposition and may be using the fee as leverage in larger negotiations over nuclear issues or sanctions. But that is an interpretation; what Iran actually intends remains unclear.

If the 60 days pass without a deal, Iran will face a hard choice: back down and abandon the fee idea, or activate the fees and almost certainly provoke a strong response from the U.S., Europe, and other countries. Neither option is painless for Tehran.

For shipping companies and oil traders, the next two months are straightforward: oil moves through the strait without the fee threat hanging overhead. But looking ahead is murkier. Insurance companies that cover ships and cargo will be watching closely. If no agreement emerges before the pause ends, the cost of insuring a trip through the Strait of Hormuz could jump significantly.

Some alternatives exist. Saudi Arabia has a pipeline that can bypass the strait, and the UAE has another. But neither is large enough to handle all the oil that normally flows through Hormuz if the strait became too risky or costly.

The core issue is deeper than fees and negotiations. Iran's announcement — paused or not — is a formal declaration that it holds power over a waterway that international law treats as open to everyone. That claim will not be settled in 60 days. It will remain a point of tension in how the world's most important oil shipping lane is governed.