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.
Moving funds into Polymarket from the UK involves converting sterling to USDC (the platform's base asset) and routing it to a Polygon wallet address. This comprehensive guide outlines all deposit pathways available to UK Polymarket participants throughout 2026, detailing transaction costs, processing timescales, and which approach suits various deposit tiers.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards as a direct payment method. Your sterling is instantly converted to USDC and credited to your PolyGram account without intermediaries.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (included in the exchange rate displayed)
- Best for: amounts under £200, quick 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 solution for UK-based users:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle payment within 30 days — zero interest charges
- Klarna Pay in 3: Divide payment across 3 equivalent instalments spanning 60 days
- Availability: Klarna requires a UK billing address and a soft credit check
- Fees: Klarna does not impose interest on Pay Later/Pay in 3 transactions; standard exchange rate applies
- Limits: Typically £30–£1,500 per transaction (determined by Klarna's credit assessment)
Note: Klarna acquisitions of USDC for prediction market engagement should be regarded as standard financial commitments — deploy only capital you can sustain if your market position generates losses.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK participants moving substantial sums, this represents the most economical option:
- Establish a Coinbase UK account (FCA-authorised) — verification via Yoti ID takes approximately 10 minutes
- Connect your UK bank account through Open Banking or Faster Payments infrastructure
- Purchase USDC using sterling — fee structure ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (confirm selection of Polygon/MATIC, not Ethereum mainnet)
- Add the wallet address to PolyGram or integrate via MetaMask
Total fees: ~0.5–1.5% contingent on your Coinbase tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA authorisation and maintains a substantial user base 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: existing Kraken account holders, substantial amounts (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables crypto purchasing across the UK and attracts many prediction market participants:
- Acquire USDC through Revolut — standard exchange rate plus 0.5–2.5% Revolut surcharge
- Transmit to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial model — verify you're transferring from Revolut to an external 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 for cryptocurrency. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (most purposes), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (variable), NatWest (some restrictions)
- Workaround: Substitute bank transfer for card payment if your financial institution restricts card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move profits back into your sterling account:
- Withdraw USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for sterling
- Withdraw sterling via Faster Payments — typically arrives same day (usually under 2 hours)
Total withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% exchange plus £0 bank transfer.
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 facilitate transfers to cryptocurrency platforms. An alternative would be to move funds from PayPal to your bank account, then utilise a bank transfer approach to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment institution. Your transaction carries the same security profile as any standard Klarna purchase. Ensure repayment capacity within the agreed timeframe irrespective of market 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 higher-value transfers, employ a crypto exchange bank transfer — Coinbase and Kraken facilitate deposits of £50,000+ following Enhanced Verification completion.