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 funds into Polymarket from the UK means converting sterling to USDC (the platform's base currency) and transferring it to a Polygon wallet. This comprehensive guide explores every deposit method available for UK Polymarket users in 2026, detailing charges, processing times, and which option suits various deposit sizes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram takes Visa and Mastercard debit cards without intermediaries. Your sterling gets converted to USDC and lands in your PolyGram account instantly.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (built 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 option for UK customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle within 30 days — 0% interest
- Klarna Pay in 3: Divide payment into 3 equal chunks across 60 days
- Availability: Klarna needs a UK billing address and a soft credit check
- 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 credit decision)
Note: Klarna purchases of USDC for prediction market use should be viewed as any other financial obligation — only spend money you can repay if the market position doesn't succeed.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK users moving larger sums, this represents the most economical approach:
- Set up a Coinbase UK account (FCA-registered) — takes 10 minutes with Yoti ID verification
- Connect your UK bank account via Open Banking or Faster Payments
- Purchase USDC with sterling — charge ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Move USDC to Polygon network (confirm you pick Polygon/MATIC network, not Ethereum)
- Add the wallet address to PolyGram or connect MetaMask
Total fees: ~0.5–1.5% based on Coinbase tier. Speed: 10–30 minutes. Best for: deposits over £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA registration and enjoys widespread adoption among UK crypto enthusiasts:
- UK Faster Payments bank transfer — no deposit cost, credited within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Transfer to Polygon network — negligible network fee (~$0.01)
- Best for: current Kraken members, substantial amounts (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables crypto purchasing in the UK and attracts prediction market participants:
- Buy USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut markup
- Transfer to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial model — verify you're moving from Revolut to an external 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 banks impose limitations on credit/debit card crypto transactions. Current situation (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 lender restricts cards for crypto
Withdrawing Back to GBP (UK Bank)
To cash out winnings to your UK bank account:
- Move USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for sterling
- Withdraw sterling via Faster Payments — typically arrives same day (usually within 2 hours)
Total withdrawal time: 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?
- Not directly. PayPal UK does not permit transfers to crypto platforms. You would need to move from PayPal to your bank account, then employ a bank transfer method to purchase USDC.
- Is Klarna safe for buying USDC?
- Klarna is an FCA-regulated payment provider. The transaction carries the same safety profile as any other Klarna purchase. Ensure you only commit funds you can repay within the agreed timeframe regardless of trading results.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card issuer (typically £500–£1,000 per transaction). For bigger deposits, employ a crypto exchange bank transfer — Coinbase and Kraken permit deposits of £50,000+ with Enhanced Verification.