Iran charges Hormuz fees by 2026?

Platform comparison

Market context

Iran and Oman have formally proposed a joint administrative fee plan for commercial vessels navigating the Strait of Hormuz, a move that directly challenges existing international law prohibiting tolls on international waterways. This proposal, presented to the U.S. following a 60-day peace memorandum, seeks to monetise passage for security, environmental, and rescue services, mirroring the fee structure used in the Strait of Malacca. While U.S. officials, including Secretary of State Marco Rubio, have declared such monetisation illegal and opposed any scenario involving fees, tolls, or donations, Iranian representatives insist the charges will be mandatory, creating a stark diplomatic divergence that defines the current market landscape.

Historically, the Strait of Hormuz has remained toll-free, with the 2026 war fundamentally altering regional dynamics and enabling this unprecedented fee proposal. The 2% implied probability reflects the high barrier of international legal opposition and the U.S. commitment to restoring pre-war conditions, yet the joint nature of the Iran-Oman plan introduces a novel enforcement mechanism that could bypass traditional objections. Traders comparing platforms like Polymarket, Kalshi, and Betfair should note that decimal odds on some exchanges may obscure the low implied probability of 2%, while fee structures and KYC requirements vary significantly; Kalshi’s strict regulatory reach contrasts with Polymarket’s global accessibility, affecting how this specific geopolitical risk is priced across different books.

Key catalysts include the upcoming discussions between Iran and Oman scheduled to begin next week, as reported by Iranian state media, which will determine the operational details of the fee collection. A recent NBC News report confirms that the funds would be shared between the two nations and managed through the International Maritime Organization, but the U.S. stance remains firmly opposed, with negotiators reviewing the Omani proposal with significant concerns. Traders must monitor whether the fees are implemented as voluntary service charges or mandatory tolls, as the market resolves only if the Iranian government officially announces and begins collecting mandatory payments, a distinction that remains central to the settlement criteria.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Iran charges Hormuz fees by 2026? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative UK offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.