Why Basic Strategy Is the Starting Point for Every Blackjack Player

Blackjack stands apart from many online games because it's one where skill meaningfully influences outcomes. Basic strategy — a set of mathematically optimal decisions for every possible hand combination — gives players their best possible odds against the house. Learning it is the single most impactful step any blackjack player can take.

Understanding the House Edge

Without any strategy, the house edge in blackjack can range from 2% to over 4% depending on the variant and your decisions. Using correct basic strategy can reduce that edge to below 0.5% in favorable rule sets. That's a significant difference over the course of hundreds of hands.

Core Basic Strategy Rules

When to Hit or Stand

  • Hard 8 or less: Always hit — you can't bust, so take the card.
  • Hard 9: Double down if the dealer shows 3–6; otherwise hit.
  • Hard 10–11: Double down against most dealer upcards, especially when dealer shows 2–9.
  • Hard 12–16: Stand if the dealer shows 2–6 (weak hand); hit if dealer shows 7 or higher.
  • Hard 17+: Always stand.

Soft Hands (Hands Containing an Ace)

  • Soft 13–15: Hit unless the dealer shows 4–6, in which case double down.
  • Soft 16–18: Double down against dealer's 3–6; otherwise hit.
  • Soft 19+: Stand — you already have a strong hand.

When to Split Pairs

  • Always split: Aces and 8s — splitting aces creates two strong starting hands; splitting 8s turns a weak 16 into two playable hands.
  • Never split: 10s (you already have 20), 5s (double down instead).
  • Split 2s, 3s, 7s: Against a dealer showing 2–7.
  • Split 6s: Against dealer showing 2–6.
  • Split 9s: Against dealer showing 2–6 and 8–9; stand against 7, 10, or Ace.

When to Double Down

Doubling down lets you double your bet in exchange for receiving exactly one more card. It's most powerful when you have a strong starting total and the dealer is showing a weak upcard (2 through 6). The most profitable doubling opportunities are on totals of 10 and 11.

Insurance: Should You Take It?

When the dealer shows an Ace, you're offered insurance — a side bet that the dealer has blackjack. In the long run, insurance is a losing bet for most players and should generally be declined unless you're using advanced card-counting techniques.

Choosing the Right Blackjack Variant

Basic strategy varies slightly depending on the rules. Key favorable rules to look for include:

  • Dealer stands on soft 17 (rather than hits)
  • Blackjack pays 3:2 (avoid 6:5 tables)
  • Player can double down on any two cards
  • Fewer decks in the shoe (single or double deck)

Practice Makes Perfect

Basic strategy takes time to memorize fully. Use free demo tables online to practice without financial risk. Many players use printed strategy cards while learning — most online platforms allow this. Once internalized, correct decisions become second nature, and your edge over the house narrows dramatically.