Iran charges Hormuz fees by 2026?

Platform comparison

Market context

Iran has already moved closer to a **de facto charging regime** in the Strait of Hormuz, so the crowd’s **0% YES** looks like a hard favourite on the “No” side and may be leaving little room for a formalised fee announcement to matter. Reuters reported on 28 July that Oman proposed a regional management plan with only voluntary fees, while Iran was still seeking a permanent settlement that would let it demand charges for ships passing through the strait.[9] That matters because the market requires an **official announcement** plus **begun collection** of mandatory fees; ad hoc payments or informal screening arrangements are not enough unless Tehran clearly turns them into a general policy.

The closest comparable cases are canal-style transit charges and Iran’s recent Hormuz practice. In March and April, Bloomberg and Reuters described ad hoc or proposed payments on some vessels, with charges tied to ship type, cargo and security-related access, but not yet a clean, published tariff applied across commercial traffic.[3][11] Iran has also publicly tried to recast any levy as “fees for services” rather than tolls, invoking navigational assistance, environmental protection or insurance, which suggests legal framing rather than a settled tariff regime.[2][7] That history supports the underdog angle for YES only if an informal system hardens into a formal notice or regulation before expiry.

For traders, the key catalysts are official statements from the foreign ministry, parliament, or an IRGC-linked maritime authority, plus any shipping advisories that spell out who must pay, how much, and under what basis. Watch for Reuters or equivalent wires on any deal involving Oman, because the July reporting shows the current consensus still assumes voluntary or regional arrangements rather than a compulsory Iran-only fee system.[9] The value spot on YES would sit in a narrow scenario where Tehran announces service fees for broad vessel categories and starts collecting them through port-state or transit controls, rather than merely continuing selective, off-book demands.[3][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Who Will Win 2026. 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.

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.

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.

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.