Blackjack looks simple enough — beat the dealer, don’t go over 21. But anyone who’s sat at a table for more than five minutes knows there’s a lot more going on under the surface. Unlike slots where you just press a button and hope for the best, blackjack actually rewards you for thinking. The good news? You don’t need to be a maths genius. A handful of solid strategies can seriously cut into the house edge and keep you in the game longer.
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Before we get into the weeds, let’s cover the fundamentals. These are the things every player should know before sitting down, whether you’re playing at a casino in London or on your phone during your lunch break.
- Learn Basic Strategy (Seriously, Do This First): There’s a mathematically correct play for every hand you’ll ever be dealt, and it’s all laid out in what’s called a basic strategy chart. Print one out, bookmark it on your phone — whatever works. Using it won’t guarantee wins, but it’ll stop you from making costly mistakes. We’ve got strategy charts right here on our site if you need one.
- Set a Budget and Stick to It: This sounds obvious, but you’d be surprised how many people ignore it. Decide how much you’re comfortable losing before you start playing. A decent rule of thumb: never put more than 5% of your total bankroll on a single hand. So if you’ve got £100 for the session, keep your bets at £5 or under. It’s not glamorous, but it keeps you at the table.
- Use a Strategy Card: No shame in having a cheat sheet. A strategy card is basically a pocket-sized reference that tells you the right move for every possible hand. Most casinos actually allow them at the table — just don’t slow the game down too much. You can find printable ones online for free.
- Know When to Split: Quick rule that’ll save you headaches: always split Aces and 8s. Everything else? Usually better to just play the hand as-is. We’ll go deeper on this below.
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Got the basics down? Good. Here’s where things get a bit more interesting. These tips won’t turn you into a card counter overnight, but they’ll sharpen your game considerably.
Tip 1 — Fewer decks are your friend. The fewer decks in the shoe, the better your odds. If a casino offers both a double-deck and a six-deck game with identical rules, go for the double-deck every time.
Tip 2 — Stand on hard 12 vs. dealer’s 3-6. It feels wrong to stand on 12, I know. But when the dealer’s showing a weak card (3 through 6), there’s a decent chance they’ll bust. Let them take the risk.
Tip 3 — Never split 10s. You’ve got 20. That’s a brilliant hand. Don’t get greedy trying to make two hands out of it, especially when the dealer shows a 9 or lower.
Tip 4 — Always split Aces and 8s vs. dealer’s 9 or lower. Aces give you two shots at hitting 21, and a pair of 8s (totalling 16) is one of the worst hands in blackjack. Splitting turns a bad situation into two potentially good ones.
Tip 5 — Stay away from the Martingale system. Doubling your bet after every loss sounds like it should work in theory. In practice, it’s a fast track to blowing through your bankroll. One bad streak and you’re done.
Tip 6 — Surrender can actually be smart. Most players never use the surrender option because it feels like giving up. But forfeiting half your bet when you’re staring down a losing hand is better than losing the whole thing. Pick your battles.
Tip 7 — Skip the insurance bet. When the dealer shows an Ace, the casino will offer you “insurance.” Sounds protective, right? It’s not — it’s a side bet with terrible odds. The only people who should take insurance are card counters, and even then, only in specific situations.
Tip 8 — Always stand on hard 17+. In a single-deck game especially, standing on 17 or higher is almost always the right call. The maths backs this up.
Tip 9 — Double down on 11 when the dealer shows 2-6. You’ve got a strong starting point and the dealer’s in a weak position. This is one of the most profitable plays in blackjack — take advantage of it.
Tip 10 — Don’t take even money on blackjack. If you’ve got a natural 21 and the dealer shows an Ace, the casino will offer you even money (1:1 instead of 3:2). Sounds safe, but you’re actually giving the house a bigger edge. Decline it.
Tip 11 — Play the cards, not the bet. I’ve seen players stand on 14 against a dealer’s 10 because they had a big bet out and got nervous. Bad idea. The correct play doesn’t change based on how much money is on the table.
Tip 12 — Hit on 16 or less when the dealer shows 7+. Sixteen is an awkward hand and hitting feels risky. But if the dealer’s got a 7 or higher showing, they’re likely sitting on 17+. You need to improve your hand or you’re probably losing anyway.
Tip 13 — Insurance is still a bad bet (yes, it’s worth repeating). The house edge on insurance jumps from around 3% to 6%. Just say no.
Tip 14 — Don’t split 10s against an Ace. Similar to Tip 3, but even more important here. Splitting 10s when the dealer has an Ace is actively hurting your odds.
Tip 15 — Keep enough cash to split or double. There’s nothing worse than getting dealt two Aces and not having enough money to split them. Always keep a bit of reserve in your bankroll for those moments when you need to pounce on a good opportunity.
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Right, let’s talk about specific hands. These come up constantly and knowing what to do instinctively will speed up your game and save you money.
1. Pair of 5s — don’t split. You’ve got 10, which is a cracking starting hand for a double down. Splitting gives you two weak hands starting with 5. Same logic applies to pairs of 4s and 10s.
2. Pair of 8s — split them. Sixteen is the worst hand in blackjack. Breaking it into two hands starting with 8 gives you much better odds. This one’s non-negotiable.
3. Pair of 6s — split against a weak dealer. If the dealer’s showing a low card (2-6), splitting your 6s gives you a shot at building two decent hands. You might catch a face card on each and end up in a much stronger position.
4. Pair of 9s — just stand. You’ve got 18. That’s solid, especially against a dealer showing a low card. Don’t overthink it.
5. Pair of 3s — hit against dealer’s 7+. With just 6, you need help. Standing here is basically waving a white flag.
6. Total of 11 — double down. This is one of blackjack’s best scenarios. Any 10-value card gives you 21, and the odds of drawing one are roughly 30%. If the dealer’s also in trouble, pile on.
7. Hard 17 or higher — stand. Don’t get cute. The chances of improving a hard 17+ by hitting are slim, and the chances of busting are very real.
8. Hard 16 or lower — hit. Below 17, your hand probably isn’t good enough to win as-is. Take a card and hope for the best.
9. Hard 12 vs. dealer’s 2-6 — stand. Let the dealer sweat. With a weak upcard, they’re the ones who might bust, not you.
10. When in doubt — hit. If you’re genuinely unsure what to do and can’t check your strategy chart, hitting is usually the safer default. Standing on a weak hand is almost always worse.
Look, nobody becomes a blackjack expert overnight. It takes practice, a bit of patience, and honestly, a few painful losses along the way — that’s just part of the learning process. But if you stick with these strategies and resist the urge to go on tilt, you’ll be a much tougher player for the house to beat. Just remember: gamble responsibly, keep it fun, and know when to walk away. Good luck out there.