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.
To fund your Polymarket account from the UK, you'll need to exchange GBP into USDC (Polymarket's primary settlement currency) and transfer it to a Polygon-compatible wallet. This comprehensive guide explores all UK Polymarket deposit options available throughout 2026, detailing charges, processing times, and which approach suits various deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards as direct payment. 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 (included in the exchange rate displayed)
- Best for: amounts under £200, quick 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 incorporates Klarna as a checkout payment option for UK-based customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle within 30 days — zero interest charged
- Klarna Pay in 3: Divide payment across 3 equal portions spread over 60 days
- Availability: Klarna requires a UK billing address and performs a soft credit check
- Fees: Klarna imposes no interest on Pay Later/Pay in 3; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna credit assessment)
Note: Klarna-funded USDC purchases for prediction market participation should be managed as standard financial commitments — only deploy capital you're prepared to repay if your prediction doesn't succeed.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
When depositing substantial sums from the UK, this pathway delivers the most competitive cost structure:
- Establish a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes using Yoti ID verification
- Connect your UK bank account via Open Banking or Faster Payments
- Purchase USDC using GBP — charge approximately 1.49% via Coinbase Advanced, roughly 0.5% via Coinbase Pro
- Transfer USDC across the Polygon network (confirm you're selecting Polygon/MATIC network, not Ethereum)
- Add the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on Coinbase tier. Speed: 10–30 minutes. Best for: deposits over £200.
Method 4 — Kraken UK Bank Transfer
Kraken maintains FCA registration and commands a strong following amongst UK cryptocurrency traders:
- UK Faster Payments bank transfer — no deposit charge, credited in under 2 hours
- Acquire USDC (Maker fee: 0.16%, Taker: 0.26%)
- Move to Polygon network — negligible network cost (~$0.01)
- Best for: Kraken account holders, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables cryptocurrency purchasing across the UK and attracts many prediction market enthusiasts:
- Purchase USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Transmit to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial basis — verify you're moving funds from Revolut to a non-custodial 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 place restrictions on debit/credit card transactions involving cryptocurrency. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (most purposes), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (variable), NatWest (some restrictions)
- Workaround: Switch to bank transfer instead of card if your institution restricts cards for cryptocurrency
Withdrawing Back to GBP (UK Bank)
To move your profits back into your UK bank account:
- Transfer USDC from PolyGram to your USDC wallet
- Move to Coinbase UK or Kraken
- Exchange USDC for GBP
- Move GBP via Faster Payments — typically lands same day (usually within 2 hours)
Complete withdrawal duration: 30 minutes to 2 hours. Charges: ~0.5% exchange plus £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal is not supported as a direct method. PayPal UK doesn't permit transfers to cryptocurrency platforms. Your alternative is moving funds from PayPal to your bank account, then utilising a bank transfer approach to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment provider. Your transaction carries the same security as any standard Klarna arrangement. Spend responsibly and only commit funds you're able to repay within your agreed timeframe regardless of market performance.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card provider (normally £500–£1,000 per transaction). For bigger deposits, opt for a crypto exchange bank transfer — Coinbase and Kraken both facilitate deposits exceeding £50,000 with Enhanced Verification.