Blackjack House Edge Statistics
Know the advantage that the house has over the player
To make the right bets, it's important to know what you are facing. Slightly different rules may change the house edge by a significant amount. Even a change of 0.5% can drastically change your long term outcome. Learn the changes on player expectations based on the chart below before you go into the next casino!
| Rule | Effect on Player Expectation |
| Two decks | -0.32% |
| Four decks | -0.48% |
| Six decks | -0.54% |
| Eight decks | -0.58% |
| Dealer hits soft 17 | -0.20% |
| Double down only on 11 (no soft, no 10, no 9, no 8) | -0.78% |
| Double down only on 10 or 11 (no soft, no 9, no 8) | -0.26% |
| Double down only on 9, 10, 11 (no soft, no 8) | -0.14% |
| No re-splitting of any pairs | -0.03% |
| Dealer wins ties | -9.00% |
| Natural pays 1 to 1 | -2.32% |
| Natural pays 2 to 1 | +2.32% |
| Double down on any number of cards | +0.24% |
| Double down after splitting pairs | +0.14% |
| Late surrender | +0.06% |
| Early surrender | +0.62% |
| Six-card winner | +0.15% |
| Players 21 pushes dealer's 10-up Blackjack | +0.16% |
| Re-splitting of aces | +0.06% |
| Draw to split aces | +0.14% |
[source: Gypsy King Software]