Sponsored by Polymarket US
Polymarket US vs Coinbase
Checked November 4, 2026. Polymarket US's own rules govern.
Side by side
| Polymarket US | Coinbase | |
|---|---|---|
| Regulation | CFTC-regulated exchange | CFTC- and NFA-registered broker in front of Kalshi |
| Markets | Sports, politics, crypto and more | Kalshi contracts, through Coinbase |
| Fees | Taker fee 6.95% × price × (1 − price) per contract, max $1.74 per 100 | Exchange cost plus a broker fee; check the order preview |
| Availability | Polymarket US is available in every state except Nevada. | Check Coinbase for your state |
| App | The Polymarket App (iOS and Android) and polymarket.us | Coinbase app |
Keep reading
See Polymarket US fees for the formula and Kalshi vs Coinbase for that side.
Frequently Asked Questions
What is the difference between Polymarket US and Coinbase?
Polymarket US is its own CFTC-regulated exchange, reached through the Polymarket App. Coinbase prediction markets are Kalshi contracts sold through a broker, inside the Coinbase app. So this compares one exchange with another exchange's contracts behind a broker. Polymarket US is available in every state except Nevada.
Is Coinbase or Polymarket US better for sports?
It depends on the contract. Coinbase offers Kalshi’s contracts through its broker, so compare the price and the broker fee in the order preview against Polymarket US’s price and taker fee.
Which is cheaper, Polymarket US or Coinbase?
Polymarket US charges Taker fee 6.95% × price × (1 − price) per contract, max $1.74 per 100. Coinbase adds a broker fee to the exchange cost, shown in its order preview.
Is Coinbase available in my state?
Check Coinbase for your state. Availability differs by venue and by market class.
Sponsored by Polymarket US
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://polymarketexchange.com/files/legal/Polymarket%20US%20Rulebook%20(2026.09.30).pdf for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.