Iran charges Hormuz fees by 2026?

Platform comparison

Market context

Iran may officially announce mandatory fees for commercial vessels passing through the Strait of Hormuz, a move that would disrupt the current toll-free status agreed for a limited negotiation window. In prediction markets, a YES share pays out if this event occurs before the settlement date, while a NO share pays out if it does not; the market currently implies only a 2% chance of the fees being introduced.

Historically, Iran has tested fee mechanisms, such as a recent "tollbooth" system for foreign-flagged ships requiring vetting and payment, though the current US-Iran memorandum explicitly waives charges for 60 days. Reports indicate Iran and Oman are exploring a joint service fee, with Iran insisting it be mandatory while Oman prefers voluntary participation, and Iranian officials stating they will impose unilateral fees if no agreement is reached with Oman[1][4]. This precedent suggests that while the current probability is low, the strategic intent to charge remains active once the temporary waiver expires.

Traders should monitor official announcements from Iran’s Strait of Hormuz authority regarding the end of the 60-day negotiation period and any subsequent policy shifts on maritime service fees[2]. Key catalysts include statements from Iran’s deputy foreign minister on unilateral action if Oman negotiations fail, and updates on whether the joint fee plan with Oman moves from proposal to implementation[1]. The settlement window closes in August 2026, so any formal declaration of mandatory charges before that date would trigger a YES outcome.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Market UK, which mirrors the Polymarket order book directly.

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

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

Do I need to KYC for this market?

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

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.