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 involves exchanging GBP into USDC (the platform's settlement currency) and transferring it to a Polygon-based wallet. This comprehensive guide examines all accessible UK Polymarket deposit methods in 2026, detailing associated charges, 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 directly. Your sterling is exchanged for USDC and credited to your PolyGram account straight away.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (built into the quoted exchange rate)
- Best for: smaller deposits up to £200, immediate top-ups
- Limits: Your card provider's standard limits apply (£500–£1,000 per transaction with typical UK banks)
Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
PolyGram integrates Klarna as a checkout option for UK-based customers:
- Klarna Pay Later (30 days): Acquire USDC today, settle payment within 30 days — no interest charged
- Klarna Pay in 3: Divide the cost into 3 equal payments spread across 60 days
- Availability: Klarna needs a UK address and performs a soft credit assessment
- Fees: Klarna does not levy interest on Pay Later or Pay in 3; standard FX rates apply
- Limits: Usually £30–£1,500 per transaction (subject to Klarna's credit assessment)
Note: Using Klarna to purchase USDC for prediction market participation should be viewed like any other credit commitment — only borrow what you can repay even if your market position generates no return.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK customers moving larger sums, this pathway offers the most economical pricing:
- Create a Coinbase UK account (FCA-authorised) — registration takes roughly 10 minutes with Yoti ID verification
- Attach your UK bank account using Open Banking or Faster Payments
- Purchase USDC with sterling — charges approximately 1.49% via Coinbase Advanced, ~0.5% via Coinbase Pro
- Transfer USDC across the Polygon network (confirm 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 level. Speed: 10–30 minutes. Best for: deposits exceeding £200.
Method 4 — Kraken UK Bank Transfer
Kraken operates under FCA supervision and enjoys widespread adoption among UK cryptocurrency traders:
- UK Faster Payments bank transfer — no charge, typically credited within 2 hours
- Exchange GBP for USDC (Maker fee: 0.16%, Taker: 0.26%)
- Move to Polygon network — negligible network cost (~$0.01)
- Best for: those already using Kraken, substantial transfers (£1,000+)
Method 5 — Revolut to PolyGram
Revolut permits cryptocurrency purchasing in the UK and attracts many prediction market participants:
- Acquire USDC via Revolut — standard rates plus 0.5–2.5% Revolut surcharge
- Direct transfer to PolyGram Polygon wallet address
- Note: Revolut UK crypto operates on a custodial basis — verify you're moving funds 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 banking institutions impose limitations on debit and credit card transactions involving cryptocurrency. As of June 2026:
- Allow: Monzo, Starling, Chase UK, Halifax (general use), Lloyds, Barclays debit
- Restrict or block: HSBC (credit products only), Santander (inconsistent), NatWest (partial restrictions)
- Workaround: Switch to bank transfer if your institution declines card-based crypto transactions
Withdrawing Back to GBP (UK Bank)
To move your profits back to a UK bank account:
- Transfer USDC from PolyGram to your USDC wallet
- Deposit at Coinbase UK or Kraken
- Convert USDC to sterling
- Withdraw GBP via Faster Payments — typically lands within 2 hours
Complete withdrawal duration: 30 minutes to 2 hours. Associated charges: ~0.5% FX conversion + £0 bank fee.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- Direct PayPal deposits are not supported. PayPal UK prohibits transmitting money to cryptocurrency services. The alternative is transferring from PayPal to your bank account, then using a bank transfer approach to obtain USDC.
- Is Klarna safe for buying USDC?
- Klarna holds FCA authorisation as a payment provider. Your transaction carries the same safety profile as any standard Klarna arrangement. Only borrow what you're confident you can repay within the specified timeframe regardless of market performance.
- What is the maximum I can deposit?
- PolyGram card transactions are capped by your card provider's limits (usually £500–£1,000 per transaction). For bigger sums, opt for bank transfer via a crypto exchange — Coinbase and Kraken both accommodate deposits of £50,000+ following Enhanced Verification.