Do sportsbooks have parlay leg limits?

Yes — most sportsbooks cap parlays at 10 to 15 legs, though some allow more. Maximum payouts on parlays are also capped, typically between $100,000 and $1,000,000 depending on the book. Even if your parlay mathematically pays more, the book pays only its stated max. Always check the house rules for payout caps before building large parlays.