Polymarket vs Kalshi: Full Comparison
Fees, markets, liquidity and access compared, for South African traders weighing the two biggest prediction markets.
Prediction markets hubPolymarket and Kalshi do the same job in two very different wrappers. Polymarket is a crypto-settled exchange with the deepest markets and the widest range of events. Kalshi is a US-regulated exchange that settles in dollars from a bank account. For most South Africans the deciding factors are access, funding method and which markets you actually want to trade.
Verdict in one line
If you are comfortable with a crypto wallet and want the broadest, deepest markets, Polymarket wins. If you are a US-based or US-reachable trader who wants bank-rail funding and a regulator, Kalshi wins. SA users reach Polymarket more easily today.
Side by side
| Feature | Polymarket | Kalshi |
|---|---|---|
| Settlement asset | USDC (crypto, on Polygon) | US dollars (bank) |
| Regulation | None covering SA users | US CFTC-regulated exchange |
| Trading fee | Low per-trade fee at the fill | Tiered maker/taker fee |
| Market range | Very broad: politics, sport, crypto, culture, weather | Broad, with a US-events tilt |
| Liquidity | Deepest on headline markets | Strong on US flagship markets |
| Funding | Crypto on-ramp (Luno, VALR) then bridge | US bank / card rails |
| SA accessibility | Reachable as an international platform | Geared to US users; access varies |
| KYC | Lighter, volume-gated | Full KYC at sign-up |
What each platform is
Polymarket is a non-custodial, crypto-settled exchange. You hold USDC in a wallet and trade contracts that settle on-chain. That design gives it speed and reach but puts the funding and custody steps on you. Kalshi is a designated contract market regulated by the US CFTC. It looks and feels like a regulated brokerage: dollars in from a bank, full KYC, and a regulator to escalate to.
Fees
Fee models differ in shape, so the cheaper platform depends on your trade. Use the worked numbers and the calculator on our prediction market fees comparison rather than a single headline rate. Always factor the crypto on-ramp and off-ramp costs on the Polymarket side, since those are real money even when the trade fee is low.
Liquidity and markets
Polymarket tends to carry the deepest books on the biggest global questions and a much longer tail of niche markets. Kalshi concentrates liquidity on a tighter set of flagship US markets. Thin markets on either platform are where slippage bites, which is the liquidity risk covered on the risks page.
Pros and cons
- Polymarket pros: broadest markets, deep liquidity, fast withdrawals to a wallet, low trade fee.
- Polymarket cons: crypto learning curve, no regulator for SA users, on/off-ramp friction.
- Kalshi pros: US-regulated, bank-rail funding, clean dollar settlement.
- Kalshi cons: US-centric access, narrower market range, full KYC.
Which suits a South African trader
For most SA users today, Polymarket is the more reachable platform and carries the markets they want, provided they are comfortable with USDC. Kalshi is the better fit if you can satisfy its US-oriented access requirements and value a regulator and bank funding. Ready to trade? Open a Polymarket account. New to all of this? Start with prediction markets explained.
Page FAQ
Is Polymarket or Kalshi better?
Polymarket for the widest, deepest markets and crypto-comfortable traders. Kalshi for bank-rail funding and a US regulator. The right answer depends on access and how you want to fund.
Is Kalshi available in South Africa?
Kalshi is built for US users and its access rules are stricter than Polymarket’s. SA users generally reach Polymarket more easily. Check each platform’s current terms before signing up.
Which has lower fees?
It depends on the trade. Compare the worked examples on our fees page, and remember to include crypto on-ramp and off-ramp costs for Polymarket.
Which has more markets?
Polymarket carries a broader range and a longer tail of niche markets. Kalshi concentrates on a tighter set of flagship markets.
Can I use both?
Yes. Many traders use Polymarket for breadth and depth and Kalshi where its regulated, dollar-settled structure suits them.
