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 exchanging GBP into USDC (PolyGram's core trading currency) and transferring it to a Polygon wallet address. This comprehensive guide walks through all available UK Polymarket deposit routes in 2026, outlining transaction costs, processing times, and which approach suits different funding scenarios.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram takes Visa and Mastercard debit cards at the point of purchase. 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 (factored into the quoted exchange rate)
- Best for: amounts under £200, urgent top-ups
- Limits: Standard card issuer restrictions 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 method for UK customers:
- Klarna Pay Later (30 days): Acquire USDC today, settle the bill within 30 days — zero interest charged
- Klarna Pay in 3: Divide the cost into 3 equal payments spread across 60 days
- Availability: Klarna needs a UK address and performs a soft credit assessment
- Fees: Klarna levies no interest on Pay Later/Pay in 3 arrangements; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit decision)
Note: When using Klarna to purchase USDC for prediction markets, treat it as a genuine financial commitment — spend only what you can afford to repay even if your wager loses.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK residents moving substantial sums, this route delivers the most competitive pricing:
- Set up a Coinbase UK account (FCA-authorised) — identity verification via Yoti takes roughly 10 minutes
- Attach your UK bank account using Open Banking or Faster Payments
- Purchase USDC using GBP — charges run ~1.49% on Coinbase Advanced, ~0.5% on Coinbase Pro
- Move USDC to the Polygon blockchain (confirm you're selecting Polygon/MATIC, not Ethereum)
- Connect the wallet to PolyGram or use MetaMask as intermediary
Total fees: ~0.5–1.5% depending on your Coinbase subscription level. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA approval and maintains a strong following among UK crypto traders:
- UK Faster Payments bank transfer — no deposit charge, settlement within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Withdraw to Polygon network — negligible network fee (~$0.01)
- Best for: Kraken account holders, substantial transfers (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables crypto buying in the UK and attracts many prediction market participants:
- Purchase USDC through Revolut — standard 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 moving funds 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. As of June 2026, the landscape looks like this:
- Allow: Monzo, Starling, Chase UK, Halifax (general use), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent policy), NatWest (selective limitations)
- Workaround: Switch to a 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:
- Withdraw USDC from PolyGram to your personal USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Withdraw GBP via Faster Payments — typically lands same day (under 2 hours in most cases)
Overall withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% for the currency swap plus £0 for the bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal is not a direct option. PayPal UK does not permit transfers to crypto services. The workaround involves moving funds from PayPal to your bank account first, then using a bank transfer method to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates under FCA regulation as a payment provider. Your transaction carries the same security as any standard Klarna purchase. Only commit funds you're confident you can repay within the chosen timeframe regardless of how your trades perform.
- What is the maximum I can deposit?
- PolyGram card deposits follow your card issuer's ceiling (normally £500–£1,000 per transaction). For higher amounts, bank transfers through crypto exchanges work better — Coinbase and Kraken both accept deposits of £50,000+ once you complete Enhanced Verification.