In this guide
- Method 1 — PolyGram Debit Card (Fastest)
- Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
- Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
- Method 4 — Kraken UK Bank Transfer
- Method 5 — Revolut to PolyGram
- UK Bank Transfer Fees Comparison
- What UK Banks Block Crypto Purchases?
- Withdrawing Back to GBP (UK Bank)
- FAQ — Polymarket Deposit UK
Fastest method: PolyGram + Visa/Mastercard debit card → funds available in under 5 minutes. For larger amounts: Coinbase UK bank transfer (Faster Payments) → USDC → PolyGram wallet. Klarna is available as a buy-now-pay-later option via PolyGram's payment flow.
Getting money into Polymarket from the UK involves converting GBP into USDC (Polymarket's primary asset) and transferring it to a Polygon-based wallet. This comprehensive guide explores all deposit options for UK Polymarket users in 2026, detailing associated costs, processing times, and which approach suits different transaction volumes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards for direct purchases. Your sterling is instantly converted to USDC and credited to your PolyGram account.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (incorporated into the displayed exchange rate)
- Best for: amounts under £200, rapid top-ups
- Limits: Standard card limits apply (£500–£1,000 per transaction with most UK banks)
Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
PolyGram integrates Klarna as a checkout option for customers in the UK:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle within 30 days — interest-free
- Klarna Pay in 3: Divide payment across 3 equal instalments over 60 days
- Availability: Klarna requires a UK address for billing and performs a soft credit assessment
- Fees: Klarna applies no interest on Pay Later/Pay in 3; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit decision)
Note: Using Klarna to acquire USDC for prediction market participation should be approached like any other financial commitment — only utilise funds you can repay even if your market position generates no return.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK-based traders moving substantial sums, this pathway offers the most economical fees:
- Create a Coinbase UK account (FCA-authorised) — registration takes approximately 10 minutes using Yoti identity verification
- Connect your UK bank account via Open Banking or Faster Payments infrastructure
- Purchase USDC with sterling — cost approximately 1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to the Polygon blockchain (confirm you choose Polygon/MATIC, not Ethereum)
- Add the wallet address to PolyGram or integrate with MetaMask
Total fees: ~0.5–1.5% based on your Coinbase subscription level. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken maintains FCA authorisation and enjoys strong adoption among UK cryptocurrency enthusiasts:
- UK Faster Payments bank transfer — zero deposit cost, typically credited within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Move to Polygon network — negligible network fee (~$0.01)
- Best for: Kraken account holders, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables cryptocurrency purchasing within the UK and has gained traction among prediction market participants:
- Acquire USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Direct transfer to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial basis — verify you're sending from Revolut to an independent wallet
UK Bank Transfer Fees Comparison
| Method | Deposit Fee | USDC Buy Fee | Speed | Minimum |
|---|---|---|---|---|
| PolyGram debit card | ~1.5% | Included | 2–5 min | £5 |
| PolyGram Klarna | 0% | Included | Instant | £30 |
| Coinbase UK (bank) | Free | 0.5–1.49% | 10–30 min | £1 |
| Kraken UK (bank) | Free | 0.16–0.26% | 2–4 hours | £10 |
| Revolut | Free | 0.5–2.5% | 5–15 min | £1 |
What UK Banks Block Crypto Purchases?
Certain UK financial institutions impose restrictions on debit and credit card purchases of digital assets. As of June 2026:
- Allow: Monzo, Starling, Chase UK, Halifax (most scenarios), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer method if your financial institution blocks card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To cash out your market profits to a UK bank account:
- Transfer USDC from PolyGram to your personal USDC wallet
- Move funds to Coinbase UK or Kraken
- Exchange USDC for sterling
- Withdraw GBP via Faster Payments — typically arrives within the same business day (usually under 2 hours)
Complete withdrawal duration: 30 minutes to 2 hours. Associated fees: ~0.5% exchange rate adjustment plus £0 bank transfer charge.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal is not a direct deposit method. PayPal UK does not facilitate transfers to cryptocurrency platforms. The alternative involves moving funds from PayPal to your bank account, then using a bank transfer approach to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment service provider. Your transaction carries the same security as any standard Klarna purchase. Ensure repayment capacity within the agreed timeframe irrespective of your trading performance.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card issuer's limits (usually £500–£1,000 per transaction). For higher amounts, opt for crypto exchange bank transfers — Coinbase and Kraken permit deposits of £50,000+ following Enhanced Verification.