What Is Basic Strategy?
Blackjack is unique among casino table games because the decisions you make directly affect the outcome. Basic strategy is a mathematically derived set of rules that tells you the statistically best action for every possible combination of your hand and the dealer's upcard. Following it consistently gives you the best possible odds against the house.
Basic strategy doesn't guarantee wins on every hand — no system can do that. What it does is minimize the house edge, which can drop to as low as 0.5% in standard blackjack when played correctly.
The Four Core Decisions in Blackjack
- Hit — Take another card from the dealer.
- Stand — Keep your current hand and end your turn.
- Double Down — Double your original bet and receive exactly one more card.
- Split — When dealt a pair, split them into two separate hands, each with its own bet.
When to Hit or Stand: Hard Hands
A hard hand is any hand without an Ace, or where the Ace must count as 1 to avoid busting.
| Your Hand Total | Dealer Shows 2–6 (Weak) | Dealer Shows 7–Ace (Strong) |
|---|---|---|
| 8 or less | Hit | Hit |
| 9 | Double Down | Hit |
| 10–11 | Double Down | Double if your total beats the dealer's upcard, else Hit |
| 12–16 | Stand | Hit |
| 17 or more | Stand | Stand |
Soft Hands: The Ace Advantage
A soft hand contains an Ace counted as 11. Because you can't bust on one more card, you have more flexibility.
- Soft 13–14 (A-2, A-3): Double Down against dealer's 5 or 6; otherwise Hit.
- Soft 15–16 (A-4, A-5): Double Down against dealer's 4–6; otherwise Hit.
- Soft 17 (A-6): Double Down against dealer's 3–6; otherwise Hit.
- Soft 18 (A-7): Stand against 2, 7, 8. Double against 3–6. Hit against 9, 10, Ace.
- Soft 19–21: Always Stand.
When to Split Pairs
- Always split Aces and 8s — no exceptions.
- Never split 10s or 5s. A pair of 10s gives you 20 — a winning hand. A pair of 5s is best played as a 10 for doubling.
- Split 9s against dealer 2–6 and 8–9. Stand against 7, 10, or Ace.
- Split 7s against dealer 2–7, otherwise Hit.
- Split 2s and 3s against dealer 4–7.
- Split 6s against dealer 3–6.
The Most Common Mistakes to Avoid
- Standing on 16 when the dealer shows a 7 or higher — It feels safe, but hitting is statistically better.
- Splitting 10s — Never break up a strong hand of 20.
- Taking insurance — Insurance is a side bet with a high house edge. Basic strategy players should skip it.
- Mimicking the dealer — Always hitting until 17+ ignores the strategic advantage you have over the house.
How to Practice Basic Strategy
The best way to internalize basic strategy is to use a strategy card — a pocket-sized chart that maps every hand combination to the correct action. Most casinos allow their use at the table. Practice at home using a standard deck before your first live game. Over time, the decisions become second nature, and you'll approach every blackjack hand with clarity and confidence.