Yes, in most places you can sit at a live blackjack table with a basic strategy card in front of you. Casinos generally tolerate them, because a card shows you the best play but gives you no information about the cards still to come, and some venues sell cards themselves. The limits are practical rather than legal: the dealer will not wait while you read, and a few venues, events and tournaments do not allow them.
There is no universal rule. House policy depends on the property, the table supervisor and the local regulator, and policies change. The sections below cover what is typical, what to ask, and how to use a card without annoying anyone.
What a strategy card is, and what it is not
A basic strategy card is a printed grid of the best action (hit, stand, double, split, surrender) for each player hand against each dealer upcard, for a specific set of rules. It is the same thing as the chart in our basic strategy guide, shrunk to wallet size.
It is not a counting aid. A card does not tell you how many tens are left in the shoe, and it cannot change the odds beyond the point where it makes your own play correct. That distinction is the reason casinos are relaxed about it. A player who uses a card is playing the best static strategy, and the house edge for that strategy is already baked into how the game is priced.
Counting systems, electronic devices and anything that tracks the cards dealt are treated very differently. Using a device to help you in play is restricted or illegal in many jurisdictions. Counting in your head is a separate issue, covered in the card counting guide.
Where cards are generally fine, and where they are not
| Situation | Typical position | What to do |
|---|---|---|
| Live cash tables in most casinos | Usually tolerated | Keep it discreet; ask if unsure |
| Casino gift shops or sites selling cards | Cards sold openly in some venues | Buy one that matches the rules at the table |
| Tournaments | Often restricted or banned | Read the written event rules first |
| Private home games | Up to the host | Ask |
| Online blackjack | No restriction on a personal chart | Make sure the chart matches the game rules |
| Jurisdictions or venues with a specific ban | Do not use one | Follow local rules; the pit boss decides |
A few things stay constant. The table supervisor (the pit boss, or floor person) can ask you to put the card away, and refusing is a bad idea. Policy is also a property decision. Two casinos on the same street can differ, and a low-limit table in a busy room is more likely to tolerate a card than a high-limit pit with a tight pace.
Wherever you play, check the table rules posted at the venue.
Etiquette: how to use a card without making enemies
- Learn the rules of the table first. Check the deck count, whether the dealer hits soft 17, and the blackjack payout. If it pays 6:5, that is a bigger problem than any strategy gap, covered in the single-deck guide.
- Keep the card in your hand or on your lap, not spread across the felt. The layout is the dealer’s working area, and a card sitting there gets in the way of chips and cards.
- Look before the hand starts, not during action. Check the card when the dealer is dealing and before you have to act. The dealer should not have to wait in silence while you read.
- Do not slow the game down. If you have to consult the card on every hand, you are not ready to play at a live table. Practise away from the casino until the common plays are automatic.
- Do not argue the chart with other players. If a stranger at the table criticises your hit on 12 against a 3, smile and ignore them. They are usually working from a feel, not a chart.
- Ask the dealer or floor if you are unsure. “Is a strategy card okay here?” takes five seconds. The answer you get is the policy that applies.
How to read a card quickly at the table
Use the same sequence every hand. It speeds you up and avoids misreads:
- Identify your hand type: pair, soft (an ace that can count as 11), or hard.
- Find the dealer’s upcard on the top row.
- Find your hand on the left column.
- Read the action, then check any footnote (surrender, double after split).
The pairs and soft tables are the ones people check most, because they are less obvious than the hard totals. Most of the hard-total decisions (always hit 8 or less, always stand on 17 or more) become automatic quickly.
Pick a card that matches your table
A card built for the wrong rules is worse than no card, because it gives you false confidence. Match these four things:
- Number of decks. A 4 to 8 deck card is slightly different from a single-deck card.
- Dealer soft 17. A stand-on-soft-17 (S17) card and a hit-on-soft-17 (H17) card disagree on a handful of cells. See the H17 guide.
- Double after split. It changes which small pairs you split.
- Late surrender. Some cards include surrender cells, others do not.
If you cannot find a card that matches, the strategy chart tool on this site lets you set the rules and read off the matching grid.
What a strategy card will and will not do for you
It will reduce your mistakes. Players who work from instinct typically give back a lot of money through plays like standing on 12 against a 2 or taking insurance. A card removes those errors.
It will not make you a winner. Perfect basic strategy still leaves the house with an edge, roughly 0.4% in a typical 6-deck game with standard rules. The figure goes up with bad rules such as 6:5 blackjack (about 1.39% extra) or dealer hits soft 17 (about 0.22% extra). A card removes your mistakes and lowers the cost of playing, but it does not remove the cost.
If the dealer or floor says no
Sometimes the answer is no, either for the whole property or because the table is busy. Accept it politely and put the card away. Arguing over a piece of paper costs you the seat and gains nothing. You can still play by memory, and the common plays (hit up to 11, stand on hard 17, split aces and eights, never insure) cover most of the value of the chart.
If you are told that cards are not allowed at all, try a quieter table, a different time of day, or practise until you no longer need the card. A request that is refused today is not a ruling on the maths. The strategy is the same with or without the paper.
Common mistakes
- Using a card for the wrong rules. The most common error. Check before you sit.
- Overriding the card on a hunch. If you hit when the card says stand, you have paid for the card and not used it.
- Taking insurance because the card does not mention it. Most basic strategy cards ignore insurance because the right answer is to decline.
- Believing the card changes the odds. It cannot. It only helps you reach the best result the rules allow.
- Holding up the table. The one thing that gets a card taken away is speed.
Try it yourself
Use the blackjack trainer on this site to practise until you can make the common plays without looking. Start with hard totals, then soft hands, then pairs. Once you rarely need the card, you will play faster and look less like you are working from notes.
Basic strategy shrinks the house edge but never removes it, so decide how much you are willing to lose before you play.
Related guides
- Full basic strategy chart: every play for a stand-on-soft-17 game, cell by cell.
- Where the blackjack house edge comes from: why the casino has an edge at all and how rules move it.