Compare prediction markets: fees, markets and availability
Side-by-side comparison of 10 US prediction market platforms — official fees with worked costs, market categories, funding methods and state restrictions.
Key takeaways
- On a 100-contract taker order at 50¢, published fees range from $0 (Novig, pre-game) and $1.00 (IBKR ForecastEx) to $2.00 (FanDuel Predicts, Webull).
- Kalshi and Polymarket US list the widest range of categories. Novig lists sports only.
- Kalshi and Polymarket US document the most funding methods. Robinhood requires settled brokerage cash, and several rivals' methods are unverified.
- Court rulings and orders shape availability more than any fee, so check the state restrictions table before you choose.
This page puts the ten regulated prediction-market platforms we track on the same grid. Every figure comes from an official fee schedule, help page or court record unless it is marked otherwise, and every restriction is dated October 4, 2026.
Summary table
-
- Offer
- Referral credits for new users (amount shown in your account)Confirmed on operator site
- Fees
- ≈ 0.07 × P(1−P) per contract (taker)
- Regulation
- CFTC exchange (DCM)
- Markets
- Sports, Politics, Economics, Weather
- Availability
- Limited in MA, MI, NV, UT, WA
-
- Offer
- $25 trading credit when you deposit $10 or moreConfirmed on operator site
- Fees
- 0.0695 × P(1−P) taker; maker rebate
- Regulation
- CFTC exchange + clearinghouse
- Markets
- Sports, Politics, Crypto, Economics
- Availability
- Limited in NV
-
- Offer
- No verified offer
- Fees
- ≤ 1¢ commission + ≤ 1¢ exchange fee
- Regulation
- CFTC-registered broker (FCM)
- Markets
- Sports, Politics, Weather, Commodities
- Availability
- Limited in MD, MI, NV
-
- Offer
- Up to $100 in Predicts Bonus: trade $1 a day for 5 daysConfirmed on operator site
- Fees
- 2% of potential payout
- Regulation
- CFTC broker (FCM), CME contracts
- Markets
- Sports (18 states), Financial, Economics
- Availability
- Sports in 18 states
-
- Offer
- No verified offer
- Fees
- 0 pre-game; 0.03 × P(1−P) live
- Regulation
- CFTC exchange (DCM)
- Markets
- Sports
- Availability
- Limited in AZ, MI, NV
-
Interactive Brokers ForecastTrader - Offer
- No verified offer
- Fees
- $0 commission + 1¢ exchange fee
- Regulation
- CFTC exchange (ForecastEx) + broker
- Markets
- Economics, Politics, Climate, Finance
- Availability
- No official state list
-
Coinbase Predictions - Offer
- No verified offer
- Fees
- Shown at checkout (no formula)
- Regulation
- CFTC broker (FCM), Kalshi markets
- Markets
- Sports, Politics, Economics, Crypto
- Availability
- Limited in NV
-
Crypto.com Predictions - Offer
- No verified offer
- Fees
- 0.07 × P(1−P) taker (sports)
- Regulation
- CFTC exchange + clearinghouse
- Markets
- Sports, Finance, Crypto
- Availability
- Limited in NV
-
Webull Event Contracts - Offer
- No verified offer
- Fees
- 2¢ per contract, each side
- Regulation
- Broker, Kalshi markets
- Markets
- Sports, Economics, Politics
- Availability
- No official state list
-
DraftKings Predictions - Offer
- No verified offer
- Fees
- 1¢ + exchange fee
- Regulation
- CFTC exchange (DKeX)
- Markets
- Sports, Financial
- Availability
- No official state list
Data from each operator's official terms and regulatory filings. Oldest check here: October 4, 2026. Offers and availability change often, so confirm on the operator's site before you sign up.
Fees compared
Fees are where the platforms differ most. Exchanges such as Kalshi, Polymarket US, Crypto.com and Novig use a formula — coefficient × contracts × P × (1 − P) — that peaks at 50¢ and falls toward zero at the extremes. Broker apps usually charge a capped or flat amount per contract, or a share of the payout. The last column shows the cost of buying 100 contracts at 50¢ as a taker (an order that fills immediately), the most expensive point on the formula curve.
| Platform | Fee model (official unless noted) | 100 contracts at 50¢ |
|---|---|---|
| Kalshi | Taker 0.07 × C × P × (1 − P), rounded up; maker 0.0175 on some markets. Coefficients are widely reported; the official PDF could not be retrieved | ~$1.75 |
| Polymarket US | Taker 0.0695 × C × P × (1 − P); makers earn a 0.0125 rebate (from Oct 1, 2026) | $1.74 (maker: −$0.31) |
| Crypto.com (sports) | Taker 0.07, maker 0.0175 × C × P × (1 − P) | ~$1.75 |
| Robinhood | Commission 10% × P × (1 − P) per contract (5% with Gold), capped at $0.01 per contract, plus exchange fee up to $0.01 | Up to $2.00 |
| Webull | $0.01 exchange + $0.01 firm fee per contract, on opening and closing trades | $2.00 to open |
| Interactive Brokers (ForecastEx) | $0 commission + $0.01 exchange fee per contract | $1.00 |
| DraftKings Predictions | $0.01 per contract + a separate exchange fee (DKeX fee unverified) | $1.00 + exchange fee |
| FanDuel Predicts | 2% of potential payout; also charged on early cash-out | $2.00 |
| Novig | $0 on pre-game straight trades; live taker 0.03 × P × (1 − P); makers $0 | $0 pre-game; $0.75 live |
| Coinbase | Exchange fee + Coinbase fee, shown at checkout; no formula published | Not published |
Two things the table cannot show. First, the spread between bid and ask is a cost too, and it varies by market and minute. Second, at prices near 10¢ or 90¢ the formula fees drop sharply — Kalshi’s falls to about $0.63 per 100 contracts — while flat fees stay put. For a full walk-through, see how prediction-market fees work.
Market categories
A tick means the category appears in the platform’s documented market list. A dash means it is not listed in the sources we checked, which is not proof it is absent.
| Platform | Sports | Politics | Economics / finance | Weather / climate | Culture / entertainment | Crypto |
|---|---|---|---|---|---|---|
| Kalshi | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Polymarket US | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Robinhood | ✓ | ✓ | ✓ (commodities) | ✓ | ✓ | – |
| FanDuel Predicts | ✓ (18 states) | – | ✓ | – | – | – |
| Novig | ✓ | – | – | – | – | – |
| Interactive Brokers | – | ✓ | ✓ | ✓ | – | – |
| Coinbase | ✓ | ✓ | ✓ | – | – | ✓ |
| Crypto.com | ✓ | – | ✓ | – | – | ✓ |
| Webull | ✓ | ✓ | ✓ | – | – | – |
| DraftKings Predictions | ✓ | – | ✓ | – | – | – |
Funding methods
Deposit options decide how quickly you can start. These come from each operator’s help pages.
| Platform | Documented funding methods |
|---|---|
| Kalshi | Debit card (2% processing fee may apply; $10 minimum), Apple Pay, Google Pay, ACH, wire, crypto, PayPal, Venmo, Cash App |
| Polymarket US | Debit card, ACH via Aeropay, Apple Pay, PayPal, Venmo, USDC (iPhone), wire ($5,000 minimum); debit and ACH up to $50,000 a day |
| Robinhood | Settled cash in a Robinhood brokerage account; instant deposits cannot fund event contracts |
| Coinbase | USD balance or USDC |
| Crypto.com | USD cash account |
| Webull | Webull brokerage cash |
| Interactive Brokers | IBKR account funding (method list not verified for event contracts) |
| FanDuel Predicts, Novig, DraftKings Predictions | Not verified in official sources |
State restrictions
As of October 4, 2026, these are the documented limits. Most apply to sports contracts; Kalshi’s Washington order also covers politics, entertainment and several other categories.
| Platform | Restricted or limited states | Basis |
|---|---|---|
| Kalshi | MA, MI, NV, UT, WA (Ohio and Tennessee uncertain) | Court orders and rulings |
| Polymarket US | NV (no official list published) | Third-party reports |
| Robinhood | MD, NV; MI new sports contracts since Sep 9, 2026 | Robinhood help center |
| FanDuel Predicts | Sports only in AK, AL, CA, DE, FL, GA, HI, ID, MN, NE, NM, ND, OK, RI, SC, SD, TX, UT | Official offer terms |
| Novig | AZ, MI, NV | Launch reports |
| Coinbase | NV | Coinbase help center |
| Crypto.com | NV; full list unverified | Court ruling; reports |
| Webull, DraftKings, Interactive Brokers | Not verified | — |
For the legal background behind each row, see the state-by-state legal tracker.
Head-to-head comparisons
If you have narrowed it to two, these pages go factor by factor and name a winner on each:
- Kalshi vs Polymarket US — the two broadest market menus, nearly identical taker fees
- Robinhood vs Kalshi — a broker that routes to Kalshi versus Kalshi itself
- FanDuel Predicts vs Kalshi — flat 2% fee versus formula pricing for sports
Prefer a ranked shortlist?
Frequently asked questions
Which prediction market is cheapest?
Why are prediction-market fees highest at 50 cents?
Is Robinhood cheaper than trading on Kalshi directly?
Do all prediction markets offer sports contracts?
Keep reading
Best prediction market platforms in the US (October 2026)
The best prediction market platforms of 2026: five CFTC-regulated sites ranked on regulation, availability, fees, markets, funding and verified offers.
Prediction market fees explained
How prediction market fees are calculated, why they peak at 50¢, and what Kalshi, Polymarket US, Robinhood, FanDuel Predicts and IBKR charge at 10¢ to 90¢.
Are prediction markets legal in your state?
A sourced, state-by-state tracker of prediction-market legality in the US — court rulings, state lawsuits, new laws and which platforms restrict where.
Kalshi vs Polymarket US: which prediction market should you use?
Kalshi vs Polymarket US compared on regulation, state availability, markets, fees (with a worked 50¢ example), funding, offers and legal exposure.
Robinhood vs Kalshi: broker app or direct exchange?
Robinhood vs Kalshi compared — how Robinhood routes event contracts to Kalshi and other exchanges, fees at several prices, markets, funding and state limits.
FanDuel Predicts vs Kalshi: which is better for sports contracts?
FanDuel Predicts vs Kalshi compared — 2% of payout vs formula fees at five prices, sports state coverage, markets, offers and regulation.
Prediction market reviews
Documentary reviews of US prediction market platforms — Kalshi, Polymarket US, Robinhood, FanDuel Predicts and Novig — built from official terms and filings.
FanDuel Predicts review: the $100 offer, 2% fee and where sports are available
A documentary review of FanDuel Predicts: CME-listed contracts, the 2% fee with a worked example, the 18 sports states and the official $100 new-customer offer.