Blackjack Basic Strategy: Below 1% House Edge, With a System

7 min read

Blackjack has the smallest house edge in the casino – but only if you play correctly. Basic strategy pushes the house edge down to roughly 0.5%. Without it, you quickly give away 2% or more.

The rules in 60 seconds

The goal is to get closer to 21 than the dealer without going over (“bust”). Number cards count face value, pictures count 10, the ace counts 1 or 11. After your first two cards you have these options:

Hit – take another card
Stand – keep your hand
Double – double your bet, take exactly one card
Split – separate a pair into two hands (extra bet)

The dealer plays by fixed rules: draws to 16, stands on 17. The optimal counter-strategy follows directly from that.

Basic strategy – the short version

Hard hands (no ace):

8 or less: always hit
9–11: double when the dealer is weak (2–6), otherwise hit
12–16: stand against dealer 2–6, hit against 7–ace
17+: always stand

Soft hands (ace as 11):

Soft 13–17: hit (or double against a weak dealer)
Soft 18: stand against 2–8, hit against 9–ace
Soft 19+: stand

Pairs:

Aces and eights: always split
Tens and fives: never split
The rest: split against a weak dealer card

The logic: when the dealer shows 2–6, their bust risk is high – you stand conservatively and let them break. When they show 7 or more, you must build a strong hand yourself.

The three most expensive beginner mistakes

Taking insurance. The insurance bet carries over 7% house edge. Always decline.
Splitting tens. 20 is the second-best hand in the game – never break it up.
Standing on 16 out of fear when the dealer shows 10. Feels wrong, is correct: hit.

Practise without risk

You don’t learn basic strategy by reading – you learn it by playing. In the free blackjack demo you can drill every hand until the right decision comes automatically – with play money, zero pressure.