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 your GBP into USDC (Polymarket's primary settlement asset) and transferring it to a Polygon-based wallet. This comprehensive guide explores all accessible UK Polymarket deposit methods in 2026, detailing costs, timescales, and which approach suits different deposit sizes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts Visa and Mastercard debit cards at the point of deposit. 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 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)
Klarna is integrated into PolyGram's checkout experience for UK customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle the bill within 30 days — no interest charged
- Klarna Pay in 3: Divide your payment across 3 equal instalments spread over 60 days
- Availability: Klarna mandates a UK billing address and conducts a soft credit check
- Fees: Klarna imposes no 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: Using Klarna to purchase USDC for outcome markets should be approached like any other financial commitment — only deploy capital you're prepared to repay even if your market position fails to materialise.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK-based traders moving substantial sums, this route delivers the most competitive cost structure:
- Establish a Coinbase UK account (FCA-authorised) — registration takes approximately 10 minutes with Yoti identity verification
- Connect your UK bank account using Open Banking or Faster Payments infrastructure
- Acquire USDC using GBP — expense runs ~1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to the Polygon blockchain (verify you're selecting Polygon/MATIC, not Ethereum)
- Add the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on your Coinbase subscription tier. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA authorisation and commands significant adoption among UK crypto traders:
- UK Faster Payments bank transfer — zero deposit charge, credited within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Move funds to Polygon network — negligible network charge (~$0.01)
- Best for: existing Kraken account holders, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut facilitates cryptocurrency acquisition in the UK and enjoys widespread use among prediction market participants:
- Acquire USDC through Revolut — standard rate plus 0.5–2.5% Revolut surcharge
- Direct transfer to your PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial model — 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 restrictions on debit and credit card transactions involving cryptocurrency. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (for most uses), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards primarily), Santander (inconsistent policy), NatWest (selective limitations)
- Workaround: Opt for bank transfer rather than card if your institution restricts card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
Converting your market profits back into sterling and returning them to your UK account involves these steps:
- Move USDC from PolyGram to your USDC wallet address
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Initiate GBP withdrawal via Faster Payments — typically lands same day (under 2 hours)
Complete withdrawal duration: 30 minutes to 2 hours. Associated costs: ~0.5% exchange margin plus £0 bank transfer fee.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Direct PayPal deposits are unavailable. PayPal UK prohibits transfers to cryptocurrency services. Your alternative is moving funds from PayPal to your bank account, then executing a bank transfer to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates under FCA regulation as a licensed payment institution. Your transaction carries the same security profile as any standard Klarna arrangement. Ensure you only commit funds you're confident repaying within the stipulated timeframe regardless of how your trades conclude.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card provider's transaction ceiling (usually £500–£1,000 per transaction). For higher volumes, bank transfer via a crypto exchange is preferable — Coinbase and Kraken accommodate deposits of £50,000+ once Enhanced Verification is completed.