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 cryptocurrency platforms that convert GBP into USDC do integrate Open Banking, enabling rapid, zero-cost deposits. This arrangement creates a streamlined GBP → USDC → Polymarket route that outperforms conventional wire transfers in both speed and cost.
Exchanges Using Open Banking for GBP Deposits
- Coinbase UK: Integrates Open Banking through Plaid for immediate GBP deposits — zero charge
- Kraken: Offers Open Banking connectivity for GBP (available at participating UK financial institutions)
- Revolut: Transfers between accounts settle nearly instantaneously; Open Banking is not necessary
How to Use Open Banking to Fund Polymarket
- Step 1: Within Coinbase UK, choose "Add funds" → "Open Banking"
- Step 2: Log in through your financial institution (Barclays, HSBC, Lloyds, Monzo, and others)
- Step 3: Initiate a GBP transfer — funds appear in your Coinbase account right away (usually within 60 seconds)
- Step 4: Exchange your funds for USDC on the Polygon blockchain
- Step 5: Send to your MetaMask wallet → complete your Polymarket deposit
Benefits of Open Banking vs Traditional Bank Transfer
Open Banking transactions typically settle in seconds (compared to 2 hours for standard Faster Payments), carry no inbound deposit charges, and eliminate the need to manually input sort codes or account numbers — substantially lowering the chance of input mistakes.
Which UK Banks Support Open Banking for Crypto?
The majority of leading UK financial institutions enable Open Banking under the FCA's PSD2 regulatory framework: Barclays, HSBC, Lloyds, NatWest, Santander, Monzo, Starling, and Revolut all facilitate Open Banking sign-in.