Iran charges Hormuz fees by 2026?

Platform comparison

Market context

Iran is already the **favourite** to end up collecting some form of mandatory charge from commercial shipping through the Strait of Hormuz, but the market’s **0% implied probability** suggests traders are treating the current language as too loose or too reversible to count. The consensus sits in a narrow band between “service fees” and “tolls”, and that wording matters: Reuters reported on 6 August that Iran was seeking fees of 5% to 7% of cargo value in a proposed passage deal, while other reporting has described Tehran as wanting payment for navigational, security and environmental services rather than a simple passage tax.[13][14]

Historically, the market should be read as a policy-follow-through handicap rather than a headline bet. In June, Iranian officials publicly said they were not seeking to levy “tolls”, but would charge fees for services provided, and Reuters also reported in April that Iran was proposing fees in any lasting peace arrangement.[1][10] That makes the underdog case less about whether Iran wants money and more about whether it can convert that intent into an official, generalised rule that applies to commercial vessels and survives legal, diplomatic and shipping-industry pushback. The International Maritime Organization has already said there is no legal basis for mandatory tolls in straits used for international navigation, which raises the execution bar.[8]

The key catalysts are formal announcements from Tehran, any published schedule or tariff mechanism, and whether the charging regime is framed as mandatory for all qualifying ships or merely as ad hoc “services” or vetting costs. Watch for renewed US-Iran/Oman talks, because Reuters said Oman has floated a rival plan with voluntary fees, while Washington wants no fees at all.[14] If Iran issues a decree, a port authority notice, or a shipping circular specifying who pays, how much, and for what passage rights, this market moves quickly; absent that, the contrarian value remains on **No**, despite repeated reports that some vessels have already been asked to pay on a selective basis.[2][3][16]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Iran charges Hormuz fees by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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