How to play blackjack: the rules, every decision, and what each one pays

Blackjack is a contest between you and the dealer — the other players at the table are irrelevant to your result. You win when your total lands closer to 21 than the dealer's without going over, or when the dealer breaks 21 and you have not. This guide from the blackjack academy takes you through card values, how a hand moves from bet to payout, every option available to you and when you get it, the rules the dealer is locked into, and where online tables differ from the live ones.

Card values and hand totals

Suits count for nothing here. Your total is simply the sum of your cards. A hand holding an ace that can count as 11 without busting is a soft hand (A-6 is "soft 17"), and it cannot bust on the next card because the ace slides down to 1 when needed. Everything else is hard (10-7 is "hard 17", and so is A-6-10). The difference matters because soft hands are played far more aggressively.

An ace next to any ten-value card in your first two cards is a blackjack, also called a natural. It beats every other hand on the table, a dealer's three-card 21 included, and pays 3 to 2 at a proper table. In a six-deck game it shows up about 4.75% of the time — roughly once every 21 hands.

How a hand of blackjack runs

1. 1

   Place your bet

   Chips into the betting circle before the deal. The minimum and maximum are posted on a placard. Online, pick a chip value and tap the circle; the bet locks the moment you press deal, so settle your session budget before you fund the account.

2. 2

   Cards are dealt

   Every player gets two cards, usually face up. The dealer takes one card face up (the up-card) and, in US-style games, one face down (the hole card). In European no-hole-card games the dealer's second card only comes out after every player has acted.

3. 3

   Dealer checks for blackjack

   If the up-card is an ace, insurance is offered before anything else happens. If the up-card is an ace or a ten, the dealer peeks at the hole card where the rules allow it. A dealer blackjack ends the hand there and then: everyone without a blackjack loses their bet, and anyone holding one pushes.

4. 4

   Players act in turn

   Starting on the dealer's left, each player picks hit, stand, double down, split or surrender. You may keep hitting until you stand or bust. A bust — anything over 21 — loses straight away, before the dealer has played a card. That ordering is where the house edge is born.

5. 5

   Dealer plays to fixed rules

   The dealer turns over the hole card and must hit on 16 or less and stand on 17 or more. The only variation is soft 17: "S17" tables stand on it, "H17" tables hit it. The dealer never doubles, never splits and never makes a judgement call.

6. 6

   Hands are settled

   If the dealer busts, every surviving player hand wins. Otherwise each hand is set against the dealer's: higher wins even money, equal pushes and your stake comes back, lower loses. A player blackjack the dealer did not match pays 3 to 2.

Your options, one by one

Hit

Take another card. At a physical table you signal by tapping the felt or beckoning with a finger; online you just tap Hit. Keep hitting as long as you like until you stand or bust. Hitting is correct whenever standing would lose more often than the bust risk costs you — on any hard total of 11 or less, for instance, and on 12–16 against a dealer 7 or higher.

Stand

Take nothing more. The signal is a flat hand waved over your cards. Always stand on hard 17 or higher and on soft 19 or higher; stand on 12–16 against a dealer 2–6 as well (12 against a 2 or 3 being the exception), because that dealer is in real danger of busting.

Double down

Double your bet, take exactly one more card, then stand automatically. What you are buying is the right to have more money out in a spot where you are the favourite — hard 11 against anything but an ace, hard 10 against 2–9, and plenty of soft hands against a weak dealer card. Most tables let you double on any first two cards; some cut it back to 9–11 or 10–11, which costs you roughly 0.1–0.2%. Double after split (DAS) means you can also double a hand you created by splitting. Doubling for less than the full bet is permitted, but it is almost never the right move.

Split

When your first two cards share a value, you can put out a second bet equal to the first and play them as two hands, each drawing a fresh second card. Always split aces and eights; never split tens or fives. Split aces normally receive one card each, and a ten landing on a split ace counts as 21, not as blackjack. Most tables let you resplit to three or four hands, though some bar resplitting aces (RSA), which costs about 0.07%.

Surrender

Abandon the hand and lose half your bet rather than playing it out. Late surrender — offered after the dealer has checked for blackjack — is the common version and is worth about 0.08% to a basic strategy player; it is the correct play on hard 16 against a 9, 10 or ace, and on hard 15 against a 10 under S17 rules. Early surrender, before the dealer checks, is rare and worth a good deal more. Say "surrender" or draw a horizontal line behind your bet; online, use the button before you take any other action.

Insurance and even money

With a dealer ace showing, you may stake up to half your original bet that the hole card is a ten. Insurance pays 2 to 1. True odds against a ten in a six-deck shoe are about 2.23 to 1, so the bet gives up roughly 7% of its value on average — an expensive habit dressed up as protection. Even money — accepting a 1:1 payout on your own blackjack against a dealer ace rather than risking a push — is the very same bet wearing a different name, and it carries the same negative value. The blackjack strategy guide runs the full calculation.

Dealer rules and why they decide everything

The dealer gets no choices at all: hit to 16, stand on 17. And because the dealer acts last, you can bust before they do — and when you both bust, your money has already gone. That ordering is the entire house edge. Copy the dealer's rules exactly and you lose about 5.5% a hand. Basic strategy repairs most of that damage by standing when the dealer is likely to break and pushing money out when you are the favourite.

That pattern drives every single row of the strategy chart: against 2–6 — the "bust cards" — the dealer breaks about four times in ten, so you stand on weak hands and double or split boldly; against 7 through ace the dealer makes a hand three times in four, so you hit your stiff totals and stop pushing extra money into the middle. The blackjack chance calculator will give you these probabilities for any specific hand you are staring at.

Payouts

That 3:2 payout on a natural is worth about 2.3% of everything you put through the table; cutting it to 6:5 hands 1.39% of it straight back to the house. No other single rule comes anywhere near, which is why the payout is the first line you read on any table you sit at.

Table etiquette

• Buy in between hands by laying cash on the felt rather than putting it in the dealer's hand, and call out the denominations you want.
• In face-up games, keep your hands off the cards entirely. In face-down single- and double-deck games, hold them with one hand only.
• Use the hand signals — tap for hit, wave for stand, extra chips beside (never on top of) the bet for a double or split. The cameras have to see the decision.
• Once the first card is out, leave your bet alone.
• Keep your advice to yourself unless a player asks. Their play does not change your expected result, however strongly it feels otherwise.
• Tip the dealer if you wish by placing a chip in front of your bet ("for the dealer") or betting it on their behalf.
• If the table says "no mid-shoe entry", wait for the shuffle before you join.

Online blackjack vs live dealer blackjack

Two things are specific to playing online. First, bet behind lets you back another seated player's hand at a full live table; you inherit every decision they make, so only get behind someone who plays basic strategy. Second, side bets like Perfect Pairs and 21+3 appear on nearly every online table and carry edges from 3% to well over 10%. They are separate wagers that leave your main bet alone, but per Naira staked they are the most expensive thing on the table. Worth knowing too: live tables stream HD video for the whole session, so a data bundle disappears far faster there than on an RNG table.

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