The payout structure in online Blackjack generally follows the standard rules, with winning hands paying 1:1 on the original bet. A "Blackjack" (a hand with an Ace and a 10-value card) typically pays 3:2, though some casinos may offer 6:5, which is less favorable. If you tie with the dealer, it’s a "push," and your original bet is returned. Insurance, offered when the dealer shows an Ace, pays 2:1 if the dealer has a Blackjack. Splitting pairs or doubling down usually results in a 1:1 payout for winning hands, though doubling down on a Blackjack often still pays 3:2. Many casinos also offer side bets with their own payout structures, which can be more risky but offer higher potential rewards. The specific payout rules can vary depending on the casino or Blackjack variation, so it’s always a good idea to check the details before playing.