Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
57% | 43% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
57% | 43% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31 | 57% |
| October 31 | 41% |
| September 30 | 24% |
| August 31 | 11% |
| July 15 | 0% |
| July 31 | 0% |
Market context
Iran has already been linked to a payment-and-permit regime for vessels transiting the Strait of Hormuz, which is why the market is priced at 0% YES despite the geopolitical risk. Reuters reported in May that Iran was consolidating control with island checkpoints and, in some cases, “fees”, while NPR and other outlets later described a new authorisation process in which ships apply in advance and a payment is expected before passage.[17][1] Bloomberg earlier reported that some vessels were being asked for as much as $2 million on an ad hoc basis, but noted the mechanism did not yet look systematic.[6]
The key comparison for traders is the gap between *informal extraction* and a *formal, generally applicable charge*. International maritime law makes routine tolling of a major strait legally fraught, and Reuters noted that charges are easier to justify if framed as security or services and applied equitably, rather than as selective coercion.[17] That makes the market sensitive to whether Tehran announces a codified schedule, a named authority, or a published fee structure, rather than relying on one-off payments or negotiated passage deals.[4][12]
For the book, the practical catalysts are official announcements, implementation dates, and whether shipping insurers or operators confirm routine invoicing, because those would move the event from grey-zone leverage into a qualifying policy. Reuters reported in late July that Oman had proposed a regional management model with only voluntary fees, underscoring that competing diplomatic tracks are active and could crowd out an Iranian fee regime.[12] Traders should watch for any IRGC-linked notices, parliament statements, or shipping-industry confirmation that charges are mandatory for all commercial vessels or a defined class, since those are the details that would turn the current payment friction into a clear YES trigger.[1][2]
Methodology
This page compares Iran charges Hormuz fees by 2026? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.
Resolution & payout
Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).
UK Frequently Asked Questions
- How does Klarna deposit work on Polymarket Klarna UK?
- You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.
- Which payment methods are supported?
- Klarna (Pay Now / Pay Later), SOFORT, SEPA bank transfer, credit card (Visa/Mastercard), Apple Pay, Google Pay, and direct USDC deposit on Polygon. Availability depends on your jurisdiction.
- Can UK traders use Klarna to deposit on Polymarket?
- Polymarket does not natively accept Klarna. To fund a Polymarket account from the UK, you must first purchase USDC via a crypto exchange (Coinbase UK, Kraken) or Revolut, then transfer to a Polygon-compatible wallet. Some third-party on-ramps (MoonPay, Transak) accept UK debit cards and may support Klarna buy-now-pay-later for crypto purchases.
- What payment methods can UK users use for Polymarket?
- UK traders typically use: (1) Coinbase UK or Kraken — buy USDC with GBP debit card or bank transfer; (2) Revolut — buy crypto and send to wallet; (3) MoonPay or Transak — Visa/Mastercard UK debit card directly to USDC on Polygon. Standard GBP-to-USDC conversion fees range from 0.5–2.5%.
- How long do Polymarket withdrawals take for UK users?
- Polymarket withdrawals to your Polygon wallet are instant (on-chain). Converting USDC back to GBP via Coinbase UK or Kraken typically takes 1–3 business days for bank transfer, or near-instant for Revolut. Polygon gas fees are minimal (<$0.01 per transaction).
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