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 means converting your GBP into USDC (the platform's standard currency) and transferring it to a Polygon wallet address. This comprehensive guide walks through all UK Polymarket deposit methods in 2026, detailing costs, processing times, and which approach suits different deposit amounts.
Method 1 — PolyGram Debit Card (Fastest)
How it works: PolyGram takes Visa and Mastercard debit cards directly. Your sterling gets swapped for USDC and lands in your PolyGram account right away.
- Speed: 2–5 minutes
- Minimum: £5
- Fees: ~1.5% card processing fee (factored into the quoted exchange rate)
- Best for: sums below £200, rapid top-ups
- Limits: Your card's standard limits apply (£500–£1,000 per go with most UK banks)
Method 2 — PolyGram via Klarna (Buy Now, Flexible Payment)
PolyGram integrates Klarna as a checkout option for UK customers:
- Klarna Pay Later (30 days): Get your USDC today, settle up within 30 days — zero interest
- Klarna Pay in 3: Break the payment into 3 matching chunks spread across 60 days
- Availability: Klarna needs a UK address and runs a soft credit check
- Fees: Klarna doesn't charge interest on Pay Later or Pay in 3; standard exchange rate applies
- Limits: Usually £30–£1,500 per transaction (based on Klarna's credit assessment)
Note: When using Klarna to buy USDC for prediction market participation, treat it like any other financial commitment — only spend what you can afford to repay even if your trade doesn't succeed.
Method 3 — Coinbase UK Bank Transfer (Lowest Fees)
For UK customers moving substantial sums, this path offers the best value:
- Set up a Coinbase UK account (FCA-authorised) — 10 minutes with Yoti ID check
- Connect your UK bank account through Open Banking or Faster Payments
- Purchase USDC with GBP — fee roughly 1.49% on Coinbase Advanced, ~0.5% on Coinbase Pro
- Move USDC to the Polygon network (make sure Polygon/MATIC is chosen, not Ethereum)
- Add the wallet to PolyGram or connect via MetaMask
Total fees: ~0.5–1.5% depending on your Coinbase tier. Speed: 10–30 minutes. Best for: deposits over £200.
Method 4 — Kraken UK Bank Transfer
Kraken holds FCA approval and is trusted by UK crypto traders:
- UK Faster Payments bank transfer — no charge, credited within 2 hours
- Purchase USDC (Maker fee: 0.16%, Taker: 0.26%)
- Shift to Polygon network — tiny network cost (~$0.01)
- Best for: Kraken account holders, substantial deposits (£1,000+)
Method 5 — Revolut to PolyGram
Revolut lets UK users purchase crypto and appeals to those trading prediction markets:
- Purchase USDC through Revolut — mid-market rate plus 0.5–2.5% Revolut surcharge
- Transfer to your PolyGram Polygon wallet address
- Remember: Revolut UK crypto is held in custody — confirm you're moving funds from Revolut to an external 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 banks place limits on card-based crypto buys. Current landscape (June 2026):
- Allow: Monzo, Starling, Chase UK, Halifax (broadly), Lloyds, Barclays debit
- Restrict or block: HSBC (credit cards only), Santander (inconsistent), NatWest (selective restrictions)
- Workaround: Switch to a bank transfer instead of card if your institution limits card crypto spending
Withdrawing Back to GBP (UK Bank)
To move your profits back into sterling:
- Pull USDC from PolyGram to your USDC wallet
- Transfer to Coinbase UK or Kraken
- Exchange USDC for GBP
- Withdraw sterling via Faster Payments — typically lands the same day (under 2 hours)
Total exit time: 30 minutes to 2 hours. Costs: ~0.5% exchange plus £0 bank fee.
FAQ — Polymarket Deposit UK
- Can I deposit with PayPal on Polymarket UK?
- No direct option exists. PayPal UK doesn't permit transfers to crypto services. You'd have to move cash from PayPal to your bank account first, then use a bank transfer route to purchase USDC.
- Is Klarna safe for buying USDC?
- Klarna is an FCA-regulated payment firm. Your purchase carries the same safety as any standard Klarna transaction. Only commit funds you're confident you can repay within the agreed timeframe regardless of how your trades perform.
- What is the maximum I can deposit?
- PolyGram card deposits cap out at your card issuer's limits (usually £500–£1,000 per transaction). For bigger deposits, go through a crypto exchange bank transfer — Coinbase and Kraken both handle deposits exceeding £50,000 with Enhanced Verification.