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 GBP to USDC (Polymarket's primary asset) and transferring it to a Polygon-based wallet. This comprehensive guide outlines every available deposit option for UK Polymarket users in 2026, detailing associated costs, transaction timescales, and which approach suits different deposit volumes.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram accepts both Visa and Mastercard debit cards directly. Your sterling 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 (incorporated into the displayed exchange rate)
- Best for: amounts under £200, rapid deposits
- Limits: Standard card 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 process for UK-based customers:
- Klarna Pay Later (30 days): Acquire USDC immediately, settle payment within 30 days — zero interest charges
- Klarna Pay in 3: Divide payment across 3 equal instalments over 60 days
- Availability: Klarna requires a UK billing address and conducts a soft credit check
- Fees: Klarna levies no interest on Pay Later/Pay in 3; standard exchange rate applies
- Limits: Typically £30–£1,500 per transaction (subject to Klarna's credit assessment)
Note: When using Klarna to purchase USDC for prediction markets, treat this as a standard financial commitment — only deploy funds you can repay even if your market position yields no return.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK users moving substantial sums, this represents the most economical option:
- Create a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes with Yoti ID verification
- Connect your UK bank account via Open Banking or Faster Payments
- Purchase USDC with GBP — approximately 1.49% fee via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC to Polygon network (confirm you choose Polygon/MATIC, not Ethereum)
- Add the wallet address to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% based on your Coinbase subscription level. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA approval and enjoys widespread adoption among UK crypto enthusiasts:
- 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: current Kraken account holders, substantial amounts (£1,000+)
Method 5 — Revolut to PolyGram
Revolut enables crypto purchasing within the UK and attracts many 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 transferring 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 financial institutions impose restrictions on debit or 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 (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer if your institution prevents card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move your earnings back into your UK bank account:
- Transfer USDC from PolyGram to your USDC wallet
- Send to Coinbase UK or Kraken
- Convert USDC to GBP
- Withdraw GBP via Faster Payments — typically arrives the same day (usually under 2 hours)
Total withdrawal duration: 30 minutes to 2 hours. Costs: ~0.5% exchange rate margin plus £0 bank transfer.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Direct PayPal deposits are not supported. PayPal UK does not facilitate transfers to crypto platforms. You would need to move funds from PayPal to your bank account first, then use a bank transfer method to acquire USDC.
- Is Klarna safe for buying USDC?
- Klarna operates as an FCA-regulated payment provider. Your transaction carries the same safety level as any standard Klarna purchase. Ensure you only commit funds you can comfortably repay within the specified timeframe regardless of your trading results.
- What is the maximum I can deposit?
- PolyGram card deposits are constrained by your card issuer's limits (usually £500–£1,000 per transaction). For higher amounts, opt for a crypto exchange bank transfer — Coinbase and Kraken both accommodate deposits of £50,000+ once Enhanced Verification is completed.