Iran charges Hormuz fees by 2026?

Platform comparison

Market context

Iran and Oman have formally presented the United States a joint proposal to collect administrative fees for Strait of Hormuz passage, marking a sharp escalation from the current 60-day toll-free window that expires next month[1]. While the US insists international law forbids such charges, Iranian officials insist payments will be mandatory, creating a direct clash over whether the strait will revert to pre-war free passage or become a monetised service zone[2][3]. This diplomatic friction has intensified since the February conflict reshaped Middle Eastern power dynamics, with Tehran threatening to impose unilateral fees if Oman refuses to collaborate[4].

Historically, comparable cases like the voluntary contributions in the Straits of Malacca and Singapore show that "service fees" often mask obligatory tolls when bordering states control navigation safety[2]. The current 2% market probability reflects the high barrier of US opposition, yet the precedent of Iran’s IRGC "tollbooth" system for foreign vessels since March suggests a willingness to enforce charges regardless of diplomatic labels[7]. Traders should monitor the upcoming joint discussions between Tehran and Muscat next week, as any failure to agree could trigger Tehran’s unilateral fee announcement[3]. Crucially, watch for formal ratification of the US-Iran memorandum beyond the 60-day window, as Secretary of State Rubio’s recent Bahrain statement confirms Washington will oppose any monetisation regardless of terminology[3]. The settlement hinges on whether Iran officially announces and begins collecting these mandatory fees before August 2026, a move that would fundamentally alter global oil transit economics.

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.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.