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 funds into Polymarket from the UK means converting GBP into USDC (Polymarket's primary settlement asset) and transferring it to a Polygon-based wallet. This comprehensive guide outlines all UK Polymarket deposit methods in 2026, detailing associated costs, processing times, and which approach suits different deposit sizes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards directly. Your GBP balance is instantly converted to USDC and credited to your PolyGram account without delay.
- 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 payment option for UK-based customers at the checkout stage:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle payment within 30 days — no interest charged
- Klarna Pay in 3: Divide payment across 3 equal instalments spread over 60 days
- Availability: Klarna requires a UK billing address and performs a soft credit check
- Fees: Klarna imposes no interest on Pay Later/Pay in 3; standard exchange rate applies
- Limits: Typically £30–£1,500 per transaction (subject to Klarna credit decision)
Note: Klarna purchases of USDC for prediction market use should be treated as any other financial obligation — only use funds you can afford if the position doesn't pay out.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK users moving larger sums, this represents the most economical option:
- Open a Coinbase UK account (FCA-registered) — takes 10 minutes with Yoti ID verification
- Link your UK bank account via Open Banking or Faster Payments
- Purchase USDC with GBP — fee ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (verify you select Polygon/MATIC network, not Ethereum)
- Add the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on Coinbase tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken maintains FCA registration and enjoys strong adoption among UK crypto traders:
- UK Faster Payments bank transfer — no 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 users, large amounts (£1,000+)
Method 5 — Revolut to PolyGram
Revolut permits crypto purchasing across the UK and is favoured by prediction market participants:
- Purchase USDC through Revolut — standard exchange 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 sending from Revolut to an external 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 debit/credit card purchases of 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: Use bank transfer instead of card if your bank restricts cards for crypto
Withdrawing Back to GBP (UK Bank)
To move trading profits back to your UK bank account:
- Withdraw USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Withdraw GBP via Faster Payments — typically arrives same day (usually under 2 hours)
Total withdrawal time: 30 minutes to 2 hours. Fees: ~0.5% exchange plus £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Not directly. PayPal UK does not permit transfers to crypto platforms. You would need to move funds from PayPal to your bank account, then use a bank transfer method to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna is an FCA-regulated payment provider. The transaction carries the same safety profile as any other Klarna purchase. Ensure you only use funds you can repay within the agreed period regardless of trading outcomes.
- What is the maximum I can deposit?
- PolyGram card deposits are limited by your card issuer (typically £500–£1,000 per transaction). For larger amounts, use a crypto exchange bank transfer — Coinbase and Kraken support deposits of £50,000+ with Enhanced Verification.