2026-04-17

Blackjack Strategy Guide: Basic Strategy & Tips

Casino games are widely known for depending largely on luck and randomness, but Blackjack is one of the few games where skill plays a part in the outcome. Blackjack strategy can improve your performance, with charts and flowcharts providing a breakdown of the best possible decisions for different scenarios.

Blackjack has one of the lowest house edges of any casino game, and using a Blackjack basic strategy can reduce it further. There are different charts depending on the version you choose when you play Blackjack online, and the house edge will change depending on the decisions you make. Although this can lower the house edge, it doesn’t completely eliminate it, so there’s no way to guarantee you’ll win.

Getting Blackjack basic strategy right requires practice. If you want to build your skills and knowledge, try Blackjack in demo mode. This allows you to learn the intricacies of the strategy without any risk.

Why Blackjack Strategy Matters

Playing Blackjack with optimal strategy has one of the lowest house edges in all of casino gaming. When you make the right choices, it can keep the house edge as low as 0.5%, which is one of the best rates of any casino game. Conversely, making the wrong decisions can increase the house edge, often by more than 0.5%.

When you play on a casual basis, you learn to rely on your gut decisions, which can sometimes beat basic Blackjack strategy. However, you are mathematically more likely to be successful when you use strategy. This is why playing strategically is the more sensible choice, even if using your gut can sometimes be successful in the short term.

Blackjack Basic Strategy Explained

If you’re getting ready to start playing Blackjack, understanding strategy is vital. Our breakdown will explain the ins and outs so you can start using strategy in your gameplay.

What Is Basic Strategy?

Blackjack basic strategy is built using mathematics and statistics to decide on the best approach for each hand you are dealt. It takes thousands of possibilities into account to determine the best option for each turn.

It’s essential to understand that Blackjack strategy isn’t designed to guarantee wins. There’s no way to do this, but basic strategy works to minimise the house edge as much as possible. It will never drop to zero, but making it as small as possible can increase your chances of winning.

How Basic Strategy Works

Basic strategy works by calculating the best decision based on the dealer’s upcard and the cards in your hand. The decision covers whether you should hit, stand, split, double down, or, if it’s available, surrender.

It looks at the cards on display and determines what decision will give you the best chance of beating the dealer. It is helpful to keep in mind that the aim of basic strategy isn’t to hit 21 or a Blackjack; it’s to beat the dealer. If that means you end up with 17 and win, the strategy was effective.

Hard Hands Strategy

Hard hands refer to the total of your hand when there’s no Ace included. This means a score of 17 is made up of a 10 and a 7 or an 8 and a 9.

These are the standard decisions based on the following hard hands. If double down isn’t available, you should hit instead.

8 or below: You should always hit, regardless of the dealer's upcard.
9: Hit for everything; if double down is available, do that if the dealer shows a 3, 4, 5, or 6.
10: You should double down for everything except 10 and A, and then you should hit.
11: Double down all the way.
12: You should stand for 4, 5, or 6, and hit for everything else.
13, 14, 15, and 16: You should stand for 2, 3, 4, 5, and 6, and hit for everything else.
17: You should always stand.

Soft Hands Strategy

Soft hands are when your score is made with an Ace. The reason they’re called soft hands is because the Ace is worth either 1 or 11. So, if you have an Ace and a 6, it could be worth either 7 or 17. If you choose to hit and you get a 5, you won’t go bust because the Ace automatically becomes worth 1 rather than 11.

For a 13 or 14, you should hit for everything; if the dealer is showing a 5 or 6, double if possible.
For a 15 or 16, it’s the same as a 13 or 14, but you should also double when the dealer shows a 4.
For a 17, hit on everything, but double when the dealer shows a 3, 4, 5, or 6.
For 18, double or stand if the dealer shows a 2, 3, 4, 5, or 6; stand on a 7; and hit on a 9, 10, or A.
For 19, stand on everything, but double or stand if the dealer shows a 6.
For 20, stand.

Pair Splitting Strategy

Splitting is possible when you are dealt a pair. The strategy for splitting pairs is simpler than it is for soft and hard hands. Here is the basic premise you need to apply based on certain pairs:

Always split on Aces as you get two chances to get a Blackjack.
Never split 10s as 20 is an excellent score.
Always split 2s, 3s, and 8s if the dealer shows less than an 8.
Always split 6s if the dealer shows less than a 7.
Never split 5s.
Always split 9s unless the dealer shows a 7, 10, or A.

#'# When to Double Down in Blackjack

Doubling down is a trickier proposition. Generally, the best time to double down is if you have less than 12 and the dealer is showing a weak upcard. However, if you’re showing a hard 11, you should always double down regardless of what the dealer is showing.

There are more opportunities to double down with soft hands when the dealer is showing weaker cards. However, if the dealer is showing higher than a 6, there are no soft chances to double down.

Doubling down can be a much riskier choice, but it increases the potential reward if you do manage to win. This is why it’s essential to learn when you should or shouldn’t double down with our guide.

Blackjack House Edge & Rules Impact

There are factors that can influence the house edge when you play Blackjack. The more decks that are included in a shoe when playing Blackjack, the higher the house edge will be. Since it adds more possible card combinations, it makes it harder to hit a Blackjack, which pays out more than the standard evens for beating the dealer.

If the dealer hits on a soft 17, it also increases the house edge. Even though the dealer can’t go bust here, they can potentially get a higher score, which means it’s harder to beat.

Payout levels will have a more obvious impact on the house edge. If a Blackjack pays out 3:2, the house edge is lower than it would be in a game that pays 6:5. It’s always best to avoid games with a 6:5 payout as it makes a big difference to the house edge.

Side bets are also something to avoid. It doesn’t matter if the game offers them; they only come into play if you use them. Placing side bets will significantly increase the house edge, so if you’re sticking to Blackjack strategy, avoid side bets.

Common Blackjack Strategy Mistakes

There are several common mistakes players make when they first get started. Here are some decisions you should avoid:

Taking insurance is almost always a poor choice
Standing on 16 when the dealer shows a 10
Taking no notice of the dealer’s upcard
Making decisions with your gut instead of following strategy
Playing at 6:5 payout tables

Blackjack Strategy Tips for Beginners

If you’re new to playing Blackjack, you’ll need some simple tips to help you along. While our quickfire tips won’t make you an expert, they will enhance your skills instantly.