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 exchanging GBP into USDC (Polymarket's primary settlement currency) and transferring it to a Polygon-based wallet. This comprehensive resource outlines all UK Polymarket deposit methods in 2026, detailing associated costs, processing times, and which approach suits various deposit sizes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards directly. Your sterling is instantly converted to USDC and credited to your PolyGram account in real time.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (baked into the quoted 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 payment option for UK customers at the checkout stage:
- Klarna Pay Later (30 days): Acquire USDC today, settle within 30 days — zero interest charged
- Klarna Pay in 3: Divide payment into 3 equal portions across 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's credit assessment)
Note: Klarna purchases of USDC for prediction markets should be approached like any other financial commitment — only spend what you can afford to repay if your market position doesn't succeed.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK-based traders moving substantial sums, this represents the most economical pathway:
- Set up 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 ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (confirm you're selecting Polygon/MATIC, not Ethereum)
- Add the wallet address to PolyGram or use MetaMask
Total fees: ~0.5–1.5% depending on Coinbase membership tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken maintains FCA registration and enjoys strong 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%)
- 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 crypto purchasing in the UK and is widely used among prediction market participants:
- Purchase USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Transfer to 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/credit card transactions for cryptocurrency. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (most scenarios), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards primarily), Santander (inconsistent), NatWest (selective restrictions)
- Workaround: Switch to bank transfer if your institution blocks card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move your profits back into sterling in your UK account:
- Withdraw USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for sterling
- Withdraw sterling via Faster Payments — typically lands same day (under 2 hours)
Total withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% exchange plus £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal UK does not facilitate direct transfers to crypto platforms. You would first move funds from PayPal to your bank account, then employ a bank transfer method 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 payment. Only commit funds you're confident you can repay within the specified timeframe independent of market results.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card provider's limits (usually £500–£1,000 per transaction). For higher deposits, employ a crypto exchange bank transfer — Coinbase and Kraken both permit deposits of £50,000+ following Enhanced Verification.