In this guide
Does Polymarket Support Open Banking in the UK?
Polymarket itself does not offer native Open Banking functionality. That said, numerous UK-based crypto platforms that convert GBP into USDC do feature Open Banking integration for rapid, zero-cost deposits. This pathway—GBP → USDC → Polymarket—delivers superior speed and cost efficiency relative to conventional wire transfers.
Exchanges Using Open Banking for GBP Deposits
- Coinbase UK: Offers Open Banking via Plaid enabling immediate GBP deposits at no cost
- Kraken: Integrated Open Banking for GBP across participating UK financial institutions
- Revolut: Near-instantaneous transfers through internal rails; Open Banking unnecessary
How to Use Open Banking to Fund Polymarket
- Step 1: Within Coinbase UK, navigate to "Add funds" and choose "Open Banking"
- Step 2: Complete authentication with your financial institution (Barclays, HSBC, Lloyds, Monzo, and others)
- Step 3: Initiate a GBP transfer—funds appear in your Coinbase account almost instantly, usually within 60 seconds
- Step 4: Exchange your GBP for USDC on the Polygon blockchain
- Step 5: Send to your MetaMask wallet and then deposit into Polymarket
Benefits of Open Banking vs Traditional Bank Transfer
Open Banking transfers typically settle immediately (compared with 2 hours for standard Faster Payments), carry zero deposit charges, and eliminate the need to manually input sort codes or account identifiers—thereby minimising the likelihood of transaction errors.
Which UK Banks Support Open Banking for Crypto?
The vast majority of UK's leading financial institutions comply with the FCA's PSD2 mandate and support Open Banking: Barclays, HSBC, Lloyds, NatWest, Santander, Monzo, Starling, and Revolut all enable Open Banking-based authentication.