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 (the platform's core asset) and transferring it to a Polygon wallet address. This comprehensive guide walks through every UK Polymarket deposit method in 2026, detailing charges, timescales, and which option suits your deposit amount.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram takes Visa and Mastercard debit cards as payment. 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 (factored 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 checkout payment method for UK customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle within 30 days — no interest charged
- Klarna Pay in 3: Divide the cost into 3 equal payments spread across 60 days
- Availability: Klarna requires a UK billing address and performs a soft credit assessment
- Fees: Klarna does not charge interest on Pay Later or Pay in 3 options; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit decision)
Note: Using Klarna to purchase USDC for prediction market activity should be viewed as a standard financial commitment — only spend what you can manage if your trade doesn't generate returns.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK customers moving larger sums, this route delivers the best value:
- Create a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes with Yoti ID verification
- Attach your UK bank account via Open Banking or Faster Payments
- Purchase USDC using GBP — charge ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC across the Polygon network (confirm you're selecting Polygon/MATIC, not Ethereum)
- Connect the wallet address to PolyGram or use MetaMask as intermediary
Total fees: ~0.5–1.5% based on your Coinbase subscription level. 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 fee, credited within 2 hours
- Purchase 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 crypto buying in the UK and is favoured by prediction market participants:
- Acquire 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 — verify you're sending from Revolut to an independent 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 restrictions on card-based crypto transactions. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (general use), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer instead of card if your institution restricts card-based crypto
Withdrawing Back to GBP (UK Bank)
To cash out your winnings to a UK bank account:
- Move USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Convert USDC to GBP
- Withdraw GBP via Faster Payments — typically lands same day (under 2 hours)
Overall withdrawal duration: 30 minutes to 2 hours. Charges: ~0.5% conversion rate plus £0 bank fee.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal cannot be used directly. PayPal UK does not facilitate transfers to crypto services. The workaround involves moving funds from PayPal to your bank account, then using a bank transfer method to obtain USDC.
- Is Klarna safe for buying USDC?
- Klarna operates under FCA regulation. Your purchase carries the same security as any standard Klarna transaction. Make certain you only commit funds you're able to repay within the specified timeframe regardless of market performance.
- What is the maximum I can deposit?
- PolyGram card transactions are capped by your card provider (normally £500–£1,000 per transaction). For bigger sums, opt for a crypto exchange bank transfer — both Coinbase and Kraken permit deposits of £50,000+ following Enhanced Verification.