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 converting sterling to USDC (Polymarket's core asset) and transferring it to a Polygon-based wallet. This comprehensive guide walks through all accessible UK Polymarket deposit pathways in 2026, detailing associated costs, timeframes, and which approach suits various deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards directly. Your sterling is instantly swapped for USDC and credited to your PolyGram account.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (incorporated into the quoted exchange rate)
- Best for: amounts under £200, rapid top-ups
- Limits: Standard card transaction 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 — zero interest charged
- Klarna Pay in 3: Divide payment across 3 equal portions over 60 days
- Availability: Klarna mandates a UK billing address and performs a soft credit assessment
- Fees: Klarna levies no interest on Pay Later/Pay in 3 options; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit decision)
Note: Klarna purchases of USDC for prediction market participation should be managed as any standard financial commitment — utilise only capital you can repay if your wager doesn't succeed.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK customers moving substantial sums, this represents the most economical option:
- Create a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes with Yoti ID verification
- Connect your UK bank account through Open Banking or Faster Payments
- Purchase USDC using sterling — charge ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC across the Polygon network (verify you're selecting Polygon/MATIC, not Ethereum)
- Connect the wallet to PolyGram or integrate via MetaMask
Total fees: ~0.5–1.5% contingent on Coinbase membership tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA authorisation and enjoys strong adoption among UK crypto participants:
- UK Faster Payments bank transfer — zero 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 enables crypto transactions in the UK and maintains a strong user base among prediction market participants:
- Purchase USDC via Revolut — standard rate plus 0.5–2.5% Revolut markup
- Transfer to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial basis — confirm you're transferring 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 financial institutions impose limitations on card-based crypto transactions. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (most scenarios), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer methodology if your institution restricts card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To transfer earnings back 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 lands same day (often within 2 hours)
Complete withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% conversion charge + £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Not available as a direct option. PayPal UK does not facilitate transfers to crypto platforms. You would require moving funds from PayPal to your bank account, then leveraging a bank transfer approach to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment provider. Your transaction carries the same security profile as any standard Klarna purchase. Ensure repayment capacity within the stipulated timeframe irrespective of trading results.
- What is the maximum I can deposit?
- PolyGram card transactions are constrained by your card provider's ceiling (normally £500–£1,000 per transaction). For higher volumes, employ a crypto exchange bank transfer — Coinbase and Kraken accommodate deposits of £50,000+ following Enhanced Verification.