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 GBP into USDC (the platform's base asset) and transferring it to a Polygon-based wallet. This comprehensive guide walks through every UK Polymarket deposit option in 2026, detailing associated costs, processing times, and which approach suits different deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards without intermediaries. 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 displayed exchange rate)
- Best for: sums below £200, rapid top-ups
- Limits: Your card issuer's standard limits apply (£500–£1,000 per transaction with most UK institutions)
Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
PolyGram integrates Klarna as a payment choice for UK customers during the checkout process:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle payment within 30 days — zero interest charged
- Klarna Pay in 3: Divide your payment into 3 equivalent portions spread across 60 days
- Availability: Klarna requires a UK address for billing purposes and conducts a soft credit assessment
- Fees: Klarna does not impose interest on Pay Later or Pay in 3 arrangements; standard exchange rate applies
- Limits: Generally £30–£1,500 per transaction (subject to Klarna's credit assessment)
Note: Using Klarna to purchase USDC for prediction markets should be approached as any standard financial commitment — spend only what you can repay even if your market position fails to generate returns.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK-based traders moving substantial sums, this path offers the most competitive pricing:
- Register with Coinbase UK (FCA-authorised) — identity verification via Yoti takes roughly 10 minutes
- Connect your UK bank account through Open Banking or Faster Payments infrastructure
- Purchase USDC using GBP — approximately 1.49% charge via Coinbase Advanced, around 0.5% via Coinbase Pro
- Transmit USDC across the Polygon network (confirm you're selecting Polygon/MATIC, not the Ethereum chain)
- Link the wallet address into PolyGram or connect via MetaMask
Total fees: roughly 0.5–1.5% contingent on your Coinbase membership tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken operates under FCA authorisation and attracts many UK cryptocurrency enthusiasts:
- UK Faster Payments bank transfer — no deposit charges, typically cleared within 2 hours
- Trade for USDC (Maker fee: 0.16%, Taker: 0.26%)
- Withdraw to Polygon network — negligible network cost (~$0.01)
- Best for: those already using Kraken, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut facilitates cryptocurrency purchases in the UK and enjoys popularity amongst prediction market participants:
- Acquire USDC through Revolut — standard rate plus 0.5–2.5% Revolut margin
- Transfer to your PolyGram address on the Polygon network
- Note: Revolut UK crypto operates on a custodial model — verify you're moving funds from Revolut to an independent wallet 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 financial institutions impose restrictions on debit and credit card transactions involving cryptocurrency. As of June 2026:
- Allow: Monzo, Starling, Chase UK, Halifax (generally permissive), Lloyds, Barclays debit
- Restrict or block: HSBC (credit products primarily), Santander (inconsistent policies), NatWest (selective limitations)
- Workaround: Switch to a bank transfer approach if your provider declines card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To cash out your profits back into a UK bank account:
- Move USDC from PolyGram to your personal USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Request GBP withdrawal via Faster Payments — typically lands within the same business day (under 2 hours in most cases)
Complete withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% conversion spread plus £0 bank transfer charge.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Direct deposits via PayPal are not supported. PayPal UK does not facilitate transfers to cryptocurrency services. Your alternative is to move funds from PayPal into your bank account first, then utilise a bank transfer method to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment services provider. The purchase carries the same security profile as any standard Klarna transaction. Only commit funds you're confident you can repay within the specified timeframe regardless of your trading performance.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card provider's ceilings (usually £500–£1,000 per transaction). For higher-value deposits, opt for an exchange bank transfer — both Coinbase and Kraken permit deposits of £50,000+ once Enhanced Verification is completed.