Kalshi vs FanDuel
Prediction Market vs Sportsbook
Kalshi and FanDuel both let you bet on sports outcomes, but they are fundamentally different products under different laws. Kalshi is a CFTC-regulated commodity exchange offering binary event contracts. FanDuel is a state-licensed sportsbook. The fee structures, bet types, legal framework, and tax treatment are all different. This guide explains which is better for you.
Kalshi is regulated by the CFTC (Commodity Futures Trading Commission) as a designated contract market: the same category as the CME Group. FanDuel is regulated by state gaming commissions under gambling law. This difference affects fees, taxes, deductibility, and which states each is available in.
Which is right for you?
- You want binary win/lose contracts with no spread or vig
- You're in a state where FanDuel isn't licensed
- You want economics, politics, and weather alongside sports
- You want 1099-MISC tax reporting (vs W-2G)
- You want to avoid the 90% OBBBA sports betting loss cap
- You prefer a limit orderbook and can shop the price
- You want point spreads, player props, and totals
- You want same-game parlays
- You want live in-game betting
- You want promotional signup bonuses
- You want deep player and game prop markets
- You prefer picking a team against a spread
Full comparison table
| Feature | Kalshi | FanDuel |
|---|---|---|
| Type | CFTC-regulated event contract exchange | Licensed sportsbook |
| Regulation | CFTC DCM: federal derivatives regulator | State gaming commissions (varies by state) |
| Settlement | USD: bank transfer / ACH | USD: bank transfer / PayPal / Venmo |
| Fee model | 0–7% of net profit (winning trades only) | Built-in vig: ~4.5% margin on standard -110/-110 lines |
| US availability | All 50 states (sports in most states) | Available in 25+ states |
| Sports coverage | Binary outcome contracts (who wins, totals) | Full betting menu: spreads, totals, props, parlays, live |
| Bet types | Yes/No binary contracts, limit orderbook | Point spread, moneyline, total, same-game parlay, live |
| Parlays | No: single-market contracts only | Yes: multi-leg parlays with enhanced odds |
| Prop bets | Limited: player performance markets | Extensive player and game props |
| Signup bonus | No promotional bonus | Bet $5 get $150 type offers (varies) |
| Tax reporting | 1099-MISC (net profit) | W-2G (only for wins ≥$600 at 300:1+ odds) |
| Legal category | Commodity derivative: federal law | Sports wager: state gambling law |
| Odds deductibility | Net losses deductible up to $3,000/yr | Sports betting losses capped 90% under OBBBA (2026) |
Vig vs profit fee — which costs less?
Win: $1,000 payout, $400 profit
Fee (~5%): $20 deducted from profit
Net win: $380
Lose: $600 lost, $0 fee
Win: $100 profit
Effective cost: ~$4.75 per $100 wagered
Lose: $110 lost (vig already paid)
Total cost: $110
For equal-size bets at 50/50 odds: Kalshi is cheaper on losses, FanDuel takes vig whether you win or lose. At typical Kalshi fee rates (3–5% of profit), a winning Kalshi trade costs roughly the same as FanDuel's vig, but the losing trade on Kalshi costs nothing. This means breakeven traders pay less on Kalshi; losing traders pay significantly less on Kalshi.
Different taxes, different deductibility
The legal category difference between Kalshi and FanDuel creates materially different tax situations:
- 1099-MISC issued annually
- Net profits = ordinary income
- Net losses deductible up to $3,000/year
- Excess losses carried forward indefinitely
- NOT subject to OBBBA 90% loss cap
- W-2G only for large wins (≥$600 at 300:1+)
- Gross winnings = ordinary income
- Losses only deductible if you itemize
- Under OBBBA (effective 2026): only 90% of losses deductible
- Subject to state gambling tax in some states
The OBBBA sports betting loss cap is a significant 2026 change. Kalshi prediction market losses are not affected because Kalshi contracts are classified as commodity derivatives, not sports wagers. Active sports bettors using FanDuel should be aware their loss deductions are now capped at 90% of total sports betting losses starting in 2026.
What Kalshi can't do that FanDuel can
Kalshi is not a sportsbook replacement. There are core sports betting features it does not offer:
Point spreads
Kalshi only offers binary contracts: "Will Team X win?": not "Will Team X win by more than 7 points?" There are no spread markets.
Same-game parlays
Kalshi contracts are single-market. You cannot parlay "Chiefs win + Mahomes over 300 yards" in one bet the way FanDuel allows.
Live in-game betting
FanDuel updates lines in real time during games. Kalshi markets have pre-game liquidity but do not offer the same live betting experience.
Player props
FanDuel has thousands of player props: rushing yards, receiving touchdowns, points scored. Kalshi has limited player-level markets.
For bettors who rely on spreads, parlays, or props, Kalshi is a complement: not a replacement. The typical approach: use FanDuel for spread/parlay/prop action; use Kalshi for binary win/lose markets, economic events, and political contracts.
Common questions
Is Kalshi a sportsbook like FanDuel? +
No. Kalshi is a CFTC-regulated commodity exchange: the same legal category as the CME or CBOE. FanDuel is a sportsbook licensed by state gaming commissions. Kalshi offers binary yes/no contracts; FanDuel offers spreads, parlays, props, and live betting. They are fundamentally different products under different laws.
Are Kalshi's fees lower than FanDuel's? +
For losing trades, yes: Kalshi charges nothing on losers; FanDuel's vig is baked into every bet win or lose. For winning trades at typical odds, the fees are similar: Kalshi charges 3–5% of profit, FanDuel charges ~4.5% vig. Breakeven and losing traders pay significantly less on Kalshi.
Can I use both Kalshi and FanDuel? +
Yes: many sports traders use both. FanDuel for spreads, same-game parlays, and player props; Kalshi for binary outcome markets, plus economics, politics, and weather. They complement each other well.
Does Kalshi have better odds than FanDuel? +
Different question. Kalshi uses a central limit orderbook: buyers and sellers set prices, so "odds" are market prices. FanDuel sets its own lines with a built-in margin. On binary win/lose markets, Kalshi's orderbook prices are often closer to true probability because there's no mandatory vig markup, but liquidity varies by market.
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