What Is Basic Strategy?
Blackjack Basic Strategy is a mathematically derived set of decisions that tells you the optimal play for every possible hand combination against every possible dealer upcard. It doesn't guarantee wins — no strategy can — but it minimizes the house edge to as low as 0.5% in favorable rule sets, making Blackjack one of the best-value games in any casino.
Basic Strategy was developed through computer simulations that ran millions of hands to determine which action — hit, stand, double down, split, or surrender — produces the best long-term outcome in every scenario.
The Core Decisions in Blackjack
- Hit — Take another card from the dealer.
- Stand — Keep your current hand and end your turn.
- Double Down — Double your bet and receive exactly one more card.
- Split — When you have two cards of the same value, split them into two separate hands (each requiring an equal additional bet).
- Surrender — Forfeit half your bet and end the hand (available in some rule sets).
Essential Basic Strategy Rules
Hard Hands (No Ace, or Ace Counted as 1)
| Your Hand Total | Recommended Action |
|---|---|
| 8 or less | Always Hit |
| 9 | Double if dealer shows 3–6, otherwise Hit |
| 10 | Double if dealer shows 2–9, otherwise Hit |
| 11 | Double against dealer 2–10, Hit vs Ace |
| 12 | Stand vs dealer 4–6, Hit otherwise |
| 13–16 | Stand vs dealer 2–6, Hit vs 7–Ace |
| 17 or more | Always Stand |
Soft Hands (Ace Counted as 11)
| Your Hand | Recommended Action |
|---|---|
| Soft 13–14 (A+2, A+3) | Double vs dealer 5–6, otherwise Hit |
| Soft 15–16 (A+4, A+5) | Double vs dealer 4–6, otherwise Hit |
| Soft 17 (A+6) | Double vs dealer 3–6, otherwise Hit |
| Soft 18 (A+7) | Double vs 3–6, Stand vs 2/7/8, Hit vs 9–Ace |
| Soft 19–20 | Always Stand |
Pairs — When to Split
- Always split: Aces and 8s
- Never split: 10s, 5s (treat 5s as a 10 and double instead)
- Split 9s vs dealer 2–6 and 8–9; Stand vs 7, 10, Ace
- Split 7s vs dealer 2–7
- Split 6s vs dealer 2–6
- Split 2s and 3s vs dealer 2–7
Why You Should Never Take Insurance
When the dealer shows an Ace, you'll be offered Insurance — a side bet paying 2:1 if the dealer has Blackjack. Despite sounding protective, Insurance carries a house edge of around 7% in a standard deck. Basic Strategy players always decline it.
Tips for Applying Basic Strategy Online
- Use a strategy card — Most online casinos permit strategy charts. Keep one open while you play.
- Play single-deck or double-deck games when available — fewer decks favor the player slightly.
- Check the rules — Confirm the game pays 3:2 for Blackjack (not 6:5), and that the dealer stands on soft 17.
- Practice in free play mode before wagering real money.
The Bottom Line
Basic Strategy is the foundation of every successful Blackjack session. It won't eliminate variance, but over the long run it ensures you're giving yourself the best mathematical chance of coming out ahead. Learn it once, and it applies to virtually every standard Blackjack game you'll encounter online.