Side bet offered when dealer shows ten as up card. Player is allowed to bet up to 50% of original bet that dealer's hole card is a ten and thus a Blackjack, in which case the insurance bet pays off at 2 to 1. Taking the insurance bet is highly advantageous to the house, unless the player is card counting.

Insurance is a side bet that the dealer has a blackjack (natural) and is treated independently of the main wager. It pays 2:1 (meaning that the player receives two dollars for every dollar bet) and is available when the dealer’s exposed card is an ace.

When the dealer shows an ace, the player can choose to place a side bet of up to half the value of the original bet. If the dealer has blackjack, the bet pays 2:1. If the dealer does not have blackjack, the player loses the wager.