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 means converting your GBP into USDC (Polymarket's primary currency) and transferring it to a Polygon-based wallet. This comprehensive guide walks through every UK Polymarket deposit method in 2026, detailing transaction costs, processing times, and which option suits different deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram takes Visa and Mastercard debit cards with no intermediaries. 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 (baked into the quoted exchange rate)
- 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 integrates Klarna as a checkout payment option for UK customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle within 30 days — zero interest
- Klarna Pay in 3: Divide payment across 3 equal portions over 60 days
- Availability: Klarna requires a UK billing address and a soft credit check
- Fees: Klarna levies no interest on Pay Later/Pay in 3; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit assessment)
Note: Using Klarna to purchase USDC for prediction market participation should be approached like any other financial commitment — only deploy capital you're prepared to repay even if your market position fails to materialise.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK customers moving substantial sums, this delivers the most economical outcome:
- Create a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes with Yoti ID verification
- Connect your UK bank account via Open Banking or Faster Payments
- Purchase USDC with sterling — fee approximately 1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (confirm you're selecting Polygon/MATIC, not Ethereum)
- Link the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on your Coinbase subscription tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA authorisation and enjoys widespread adoption among UK crypto enthusiasts:
- UK Faster Payments bank transfer — no deposit charge, credited within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Withdraw to Polygon network — negligible network fee (~$0.01)
- Best for: current Kraken account holders, substantial amounts (£1,000+)
Method 5 — Revolut to PolyGram
Revolut facilitates crypto purchasing in the UK and is favoured by prediction market participants:
- Acquire USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Transfer to your PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial model — confirm you're transferring from Revolut to an external address
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 banks impose restrictions on debit and credit card transactions involving cryptocurrency. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (general use), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent policy), NatWest (selective restrictions)
- Workaround: Switch to bank transfer if your provider blocks card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move your profits back into sterling in your UK account:
- Send USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for sterling
- Request GBP withdrawal via Faster Payments — typically lands same day (under 2 hours)
Full withdrawal duration: 30 minutes to 2 hours. Associated costs: ~0.5% exchange plus £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- No direct option exists. PayPal UK does not facilitate transfers to crypto services. The alternative is moving funds from PayPal to your bank account, then using a bank transfer method to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates under FCA regulation as a licensed payment provider. Your transaction carries the same security as any standard Klarna purchase. Exercise caution to spend only what you're confident repaying within your chosen timeframe irrespective of market outcomes.
- What is the maximum I can deposit?
- PolyGram card deposits follow your card issuer's limits (normally £500–£1,000 per transaction). To move larger sums, opt for a crypto exchange bank transfer — both Coinbase and Kraken support deposits of £50,000+ once Enhanced Verification is complete.