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Marcus Halliday
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Every answer on this page was written by an editorial team member, reviewed by Marcus Halliday, and re-checked against published basic-strategy math where probabilities are quoted.
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Send a blackjack question to our editorial desk and we'll reply within 48 hours. Rules, basic strategy, game choice, casino recommendations — anything. Below: every question we've already answered, plus reader-submitted threads.
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Welcome to Black-Jack.team's question-and-answer section. You can send any blackjack question to our Blackjack Expert and we'll reply within 48 hours. Rules, strategies, casino picks, or anything else — don't hesitate. Use the contact form to submit; or browse the most-asked questions below.
Most-asked questions
What's the house edge in blackjack?
Lower than almost any other casino game when you play correctly. Using accurate basic strategy on a standard game, the house edge is roughly 0.5%. That's the math behind the rules — dealer rules, payouts, and number of decks all nudge it up or down. Play loose (guessing, copying the dealer) and the edge balloons toward 2-3%. Our /strategies/ section shows how to keep it near the floor.
What does blackjack pay?
A natural blackjack — an ace plus a ten-value card on your first two cards — should pay 3:2. On a $10 bet that's $15. Beware tables that pay only 6:5: that single rule change roughly triples the house edge and quietly drains your bankroll. Always confirm the payout printed on the felt before you sit down; if it says 6:5, walk to a 3:2 table. See /rules/ for the full payout breakdown.
When does the dealer hit or stand?
The dealer follows a fixed rule, not a choice. In the most common game the dealer must hit until reaching 17 or more, then stand — this is 'dealer stands on 17' (S17). Some tables have the dealer hit a soft 17 (H17), which is slightly worse for you. Because the dealer has no decisions to make, your advantage comes entirely from playing your own hand correctly.
What is basic strategy and does it really work?
Basic strategy is the mathematically optimal play for every possible hand against every dealer up-card — hit, stand, double, split, or surrender. It was derived by computer simulation of millions of hands and it's not a betting system or a trick: it simply minimises the house edge to about 0.5%. It won't make you a long-term winner, but it loses money far slower than guessing. Find the chart on our /strategies/ page.
What's the difference between hit, stand, double, and split?
These are your four core moves. Hit = take another card. Stand = keep your total and end your turn. Double down = double your bet, take exactly one more card. Split = when your first two cards match, separate them into two hands with a second equal bet. Knowing which to use in each situation is what basic strategy tells you. The /glossary/ defines each term in detail.
Should I take insurance?
Almost never. Insurance is a side bet offered when the dealer shows an ace — you're betting the dealer has a natural blackjack. It pays 2:1, but the odds make it a losing proposition for anyone who isn't counting cards: over time you lose more on insurance than it pays back. For non-counters it's simply a bad bet. Decline it.
What is 'even money' and should I take it?
Even money is just insurance by another name. If you have a blackjack and the dealer shows an ace, the casino offers to pay you 1:1 immediately instead of the 3:2 you'd get if the dealer doesn't have blackjack. It feels safe, but mathematically you give up value every time you take it. For a non-counter, decline even money and let your 3:2 ride.
What is surrender?
Surrender lets you fold a bad hand and reclaim half your bet, ending the round immediately. It's only offered at some tables (late surrender is the common form). Used correctly on the worst hands — like a hard 16 against a dealer 9, 10, or ace — it saves money over hitting or standing. It's not available everywhere, so check the table rules first.
Can I count cards in online blackjack?
Not effectively against standard online tables. RNG blackjack reshuffles the virtual deck after every single hand, so there's no running count to track — counting is mathematically defeated by the reshuffle. Live-dealer online tables shuffle deep and frequently for the same reason. Card counting only has a theoretical edge against physical games dealt deep into the shoe, and casinos watch for it closely.
Is there a strategy that beats the house edge long-term?
No. No betting system — Martingale, progression, pattern-chasing — changes the underlying odds of each hand, and the house edge guarantees losses over enough hands. Basic strategy minimises that edge to about 0.5% but never erases it. Anyone selling a 'guaranteed winning system' is selling fiction. The honest goal is to lose slowly, enjoy the game, and quit while you're ahead.
Can I play blackjack for free?
Yes. Our on-site practice table lets you play blackjack for free with no deposit and no account — it's the best way to drill basic strategy until the right moves become automatic. Practising for free first means that when you do play for real, you're not paying tuition for mistakes you could have made in demo mode. Open it from the /#play section.
Is online blackjack rigged?
Licensed operators are not rigged. Every legitimate blackjack title — RNG or live-dealer — is audited by independent labs (eCOGRA, iTech Labs, GLI) and certified to deal fairly. The house edge IS built into the rules; that's the math, not rigging. If you can't find a licence and audit report on a casino's website, walk away — those are the operators worth being cautious about. See how we vet them at /how-we-rate/.
How many decks are used and does it matter?
Most casino blackjack uses one, two, six, or eight decks. Fewer decks slightly favour the player — a single-deck 3:2 game with good rules has the lowest house edge — while six- and eight-deck shoes nudge it up a touch. The effect is small compared to the 6:5-versus-3:2 payout, so prioritise finding a 3:2 table first, then prefer fewer decks if you have the choice.
Do online casinos ban winners?
Licensed casinos don't ban winners arbitrarily — they're legally bound to pay out under their licence terms. Some operators reduce limits or restrict bonus access for advantage players (suspected card counters or very-high-volume bettors), which is a contractual right. Outright closure of an account purely for winning is not permitted at reputable MGA or UKGC operators. We flag operators' track records in our /casinos/ reviews.
Reader-submitted Q&As
Some recent questions from readers, with our answers. Submit your own via the contact form — replies within 48 hours.
Recently answered
Should I always split aces and eights? (Elvin, 15.11.2024)
Basic strategy says yes — these are the two pairs you split every time. Splitting aces gives each ace a fresh chance at a ten for blackjack instead of a weak soft total. Splitting eights breaks up a hard 16 — the worst hand in the game — into two hands that each start at 8, far better starting points. Note that split aces usually receive only one card each. The /strategies/ chart covers every other pair.
Do I have to bet every hand or can I sit out? (Stanislaw, 12.09.2023)
You can sit out as many hands as you like. At a live table you simply don't place a bet for that round and watch it play out. There's no penalty and no obligation to bet continuously — taking breaks is good bankroll discipline. Just don't fall for the idea that watching lets you 'read' the next outcome; each hand is independent.
Why did the dealer win when we both had 20? (Lucjan, 28.01.2023)
A tie is called a 'push' — when you and the dealer have the same total, neither wins and your bet is returned. If you genuinely lost on an equal total, double-check the hands: a dealer blackjack (ace plus ten on the first two cards) beats your hand of 21 made from three or more cards. Otherwise an equal 20 is always a push. See the /glossary/ entry for 'push'.
Is it worth chasing a hot streak by raising my bet? (Roscislaw, 13.05.2022)
No. Streaks only look meaningful in hindsight — each hand is independent of the last, so a run of wins tells you nothing about the next deal. Raising bets to 'ride' a streak just increases the amount the house edge grinds against. Pick a flat bet you're comfortable with, set a stop-win and stop-loss, and stick to them. There's no momentum to chase.
Is online blackjack legal where I live? (Nadzieja, 02.05.2022)
It depends on your jurisdiction. In many countries online casinos operate under international licences (MGA, UKGC, Curaçao), and operators with those licences accept players. They may not be licensed specifically for your market — a regulated grey area many players navigate safely. Always check the operator's licence display and your own local laws before depositing.