Blackjack is the casino game where your decisions affect the outcome most. That makes the rules worth learning properly, and it makes the differences between tables worth checking before you play.
This page covers how the game works, what the various rules do to your odds, and what basic strategy actually says. It is a rules explainer, not a guide to winning — the house retains an advantage on every blackjack table, and no strategy removes it.
The objective, stated correctly
The most common description of blackjack is that the object is to get as close to 21 as possible without going over.
That is not the object, and the distinction matters. The object is to beat the dealer.
To do that you must first avoid busting, and then either outscore the dealer or have the dealer bust. Those are different goals. A hand of 13 against a dealer showing a 6 is often a good hand to stand on, not because it is close to 21 but because the dealer is likely to bust. Playing to reach 21 rather than to beat the dealer leads directly to hitting hands you should stand on.
Card values
| Card | Value |
|---|---|
| 2 through 10 | Face value |
| Jack, Queen, King | 10 |
| Ace | 1 or 11, whichever is better for the hand |
A hand containing an ace that can count as 11 without busting is a soft hand. An ace and a 9 is a soft 20. A hand with no ace, or where the ace must count as 1, is a hard hand.
The distinction matters because a soft hand cannot bust on the next card. That changes how you should play it.
A blackjack is an ace with any ten-value card on the first two cards. It outranks every other hand totalling 21, including a 21 made from three or more cards.
How a hand plays out
- You place a bet. You and the dealer each receive two cards. One of the dealer’s cards is face up; the other, the hole card, is face down.
- If the dealer shows an ace, insurance is offered as a side bet.
- If the dealer shows an ace or a ten, they check the hole card for blackjack. If they have it, the hand ends immediately — all bets lose except a player blackjack, which pushes.
- You act on your hand. Your options are stand, hit, double (double the bet and take exactly one more card), split (with a pair, separate into two hands with a matching bet), and at some tables surrender (forfeit half the bet and end the hand).
- The dealer reveals the hole card and draws on 16 or less, standing on 17 or more. The variable is soft 17: some tables have the dealer stand on it, others hit.
- If the dealer busts, everyone still in wins. Otherwise the higher total wins.
Winning bets pay even money. A winning blackjack usually pays 3 to 2 — and that word “usually” is the most important one on this page.
The payout rule
The decisions that matter, stated correctly
Basic strategy is a calculated answer for every combination of your hand and the dealer’s upcard. The dealer’s upcard is the input most beginners ignore, and it changes the correct play more than your own total does.
This is the check to make before any other. Two tables can be identical in every respect and differ by more than a full percentage point on the payout line alone.
How the other rules move the odds
Reference sources
Rules, house edge figures and strategy references used in this article.
- Blackjack: rules, rule variations and house edge — Wizard of Odds
- Blackjack rule variations, full list — Wizard of Odds
- Basic strategy calculator — Wizard of Odds
- Blackjack variants: single deck and 6-5 payouts — Wizard of Odds
- Guide to casino games — Safer Gambling Aotearoa, Health New Zealand | Te Whatu Ora
- Online Casino Gambling Act 2026 — New Zealand Legislation
- Online Casino Gambling Regulations 2026 — New Zealand Legislation
- Information for online casino customers — Department of Internal Affairs
- Gambling Helpline Aotearoa New Zealand — free, confidential support service
Two of these deserve a note, because they are commonly described the wrong way round.
European blackjack is not better for the player. In the European format the dealer takes no hole card, so a dealer blackjack is only revealed after you have acted — and you lose any additional money committed to doubles and splits. It costs roughly 0.11% against the standard game, rather than saving you anything.
Fewer decks help, but rarely enough. A single-deck game is worth about half a percent, which is genuine. It is also the rule most often paired with a 6 to 5 payout, and that combination leaves you worse off than an ordinary eight-deck table.
Basic strategy
What independent sources currently say
Wizard of Odds, a long-established independent analyst with no commercial relationship to the operator, has blacklisted every casino in this group.
Two commonly repeated shortcuts are worth correcting specifically.
“Double on 10 or 11 only when the dealer shows 4, 5 or 6.” Far too narrow. The correct range is doubling on 11 against a dealer 2 through 10, and on 10 against a 2 through 9. Following the narrow version passes up most of the value doubling offers.
“Just get to 17 and stand.” This is close to the “mimic the dealer” approach, which never doubles or splits. Played consistently it produces a house edge of over 5% — more than ten times a well-played game.
Full strategy charts matched to the exact rules of your table are published free by Wizard of Odds. They are more accurate than any summary, including this one.
Variants you will encounter
| Variant | What differs | Effect on odds |
|---|---|---|
| Classic / American | Dealer takes a hole card and peeks for blackjack | Baseline |
| European | No hole card; dealer draws after you act | Slightly worse for the player |
| Atlantic City | Eight decks, late surrender available | Surrender is a small plus; more decks a small minus |
| Multi-hand | You play several hands per round | Odds unchanged, amount at risk per round multiplied |
| Live dealer | Streamed from a studio with a real dealer | Odds unchanged; pace set by the studio |
Our live casino page covers how live dealer tables differ in pace and cost, and blackjack online covers the online format specifically.
Bonuses and blackjack
Blackjack has one of the lowest house edges in a casino, which is precisely why bonus terms treat it poorly.
Wagering contributions for blackjack are commonly reduced to 10–20%, or the game is excluded from bonus play entirely. At 10% weighting, a 30x wagering requirement becomes an effective 300x in turnover — and playing an excluded game while a bonus is active can void it outright.
If blackjack is what you want to play, declining the bonus is usually the better arrangement. Our casino bonuses page explains the mechanics, and note that under the Online Casino Gambling Regulations 2026 a bonus from a licensed New Zealand operator cannot exceed NZ$100, or 200% of the deposit or bet, whichever is lower.
Where New Zealand’s rules sit
Operators serving New Zealand before 1 May 2026 may continue until 1 December 2026. From that date only operators that have applied for a licence may continue, with licences expected from early 2027 and a public register published by the Department of Internal Affairs.
Licensed operators will be required to offer limits on deposits, spending and play duration; self-exclusion effective within 24 hours; behaviour monitoring; age verification with a minimum of 18; and to prohibit credit card and buy-now-pay-later deposits.
A note specific to this game. Blackjack rewards attention, and that is part of its appeal — but Safer Gambling Aotearoa is clear that while knowledge and judgement may improve your chances in partial-skill games, chance still plays a large role. The house edge is small on a good table. It is not zero, and it does not become zero with practice. Our responsible gaming page covers the tools available, and New Zealand gambling laws guide sets out the timeline.
About this page
What it is, what it is not, and what to check before you act on it.
One withdrawal cap, shared across every brand in the group
| Stage | Reported timing |
|---|---|
| Internal approval | Up to 24 hours |
| E-wallet transit after approval | Same day to 48 hours |
| Card or bank transfer after approval | 2 to 7 business days |
Frequently Asked Questions
What does a blackjack pay?
Traditionally 3 to 2 — a NZ$20 bet returns NZ$30. Many tables now pay 6 to 5, returning NZ$24, which costs the player about 1.39% in expected return. Check the payout before you bet.
Is single-deck blackjack better?
The single deck itself is worth about 0.48% to the player. However, single-deck games are frequently paired with a 6 to 5 payout, which costs about 1.39% — leaving you worse off overall than a standard eight-deck 3 to 2 table.
What is the difference between hard and soft 17?
A soft 17 contains an ace counting as 11, such as ace-6. Whether the dealer hits or stands on soft 17 is a table rule. A dealer hitting soft 17 costs the player about 0.22%.
Should I ever take insurance?
No. Insurance is a side bet paying 2 to 1 on an event that happens less often than one time in three. Even money, offered when you hold a blackjack, is the same bet in different packaging.
When should I double on 10 or 11?
On 11 against a dealer 2 through 10, and on 10 against a dealer 2 through 9. Advice limiting doubles to a dealer 4, 5 or 6 is far too narrow and gives up most of the value.
Does basic strategy mean I will win?
No. Correct basic strategy reduces the house edge to well under one percent on a favourable table, but it does not eliminate it. The effect is to lose more slowly, not to profit.
Where can I get help if gambling is causing problems?
The Gambling Helpline is free and available 24 hours a day on 0800 654 655, or by free text to 8006. Support is also available to whānau and friends.
