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 converting your GBP into USDC (the platform's primary settlement currency) and transferring it to a Polygon-based wallet. This comprehensive guide examines all UK Polymarket deposit options currently available in 2026, detailing associated costs, processing times, and which approach suits various deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards as a direct payment method. Your sterling balance gets converted to USDC and credited to your PolyGram account instantly.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (factored into the displayed exchange rate)
- Best for: sums below £200, rapid account top-ups
- Limits: Your card issuer's standard limits apply (£500–£1,000 per single transaction with most UK banks)
Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
PolyGram integrates Klarna as a checkout payment method for UK-based users:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle payment within 30 days — no interest charged
- Klarna Pay in 3: Divide your payment into 3 equal portions spread over 60 days
- Availability: Klarna requires a UK-registered address and performs a soft credit assessment
- Fees: Klarna does not impose interest on Pay Later or Pay in 3 arrangements; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit assessment)
Note: USDC purchases through Klarna for prediction market participation should be viewed as a standard financial commitment — only borrow what you can repay even if your market position produces no return.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK residents moving larger sums, this approach delivers the most economical fee structure:
- Create a Coinbase UK account (FCA-authorised) — registration takes approximately 10 minutes using Yoti verification
- Connect your UK bank account through Open Banking or Faster Payments infrastructure
- Purchase USDC using GBP — expense ratio ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (confirm you're selecting Polygon/MATIC, not Ethereum mainnet)
- Add the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on your Coinbase tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken maintains FCA authorisation and has a strong following among UK cryptocurrency investors:
- 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 cost (~$0.01)
- Best for: Kraken account holders, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables cryptocurrency purchasing across the UK and is favoured by prediction market participants:
- Acquire USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Transfer to your PolyGram Polygon wallet address
- Note: Revolut UK cryptocurrency holdings are custodial — verify you're sending 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. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (general use), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards specifically), Santander (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer method if your institution declines card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move your profits back into sterling in your UK account:
- Send USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Withdraw sterling via Faster Payments — typically arrives within 2 hours
Complete withdrawal duration: 30 minutes to 2 hours. Associated costs: ~0.5% exchange fee + £0 bank transfer charge.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- PayPal is not supported as a direct deposit method. PayPal UK does not permit transfers to cryptocurrency platforms. The alternative is to move funds from PayPal to your bank account, then use a bank transfer route to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment service provider. Your transaction carries the same security as any standard Klarna purchase. Only commit funds you're confident you can repay within the specified timeframe, independent of your trading performance.
- 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 bigger deposits, employ a crypto exchange bank transfer — both Coinbase and Kraken permit deposits of £50,000+ following Enhanced Verification.