Blackjack is the one mainstream casino game where your decisions materially change the house edge. Played by feel, the edge can exceed 2%. Played with basic strategy, it drops to roughly 0.5% under good rules.
The rules that matter
Before sitting down, check the table's rules. Each of these affects the edge:
- Blackjack payout: 3:2 is standard. 6:5 adds about 1.4% to the house edge — avoid it.
- Dealer on soft 17: standing is better for you than hitting (about 0.2%).
- Doubling after split: allowed is better (about 0.14%).
- Number of decks: fewer is better, though the effect is small online.
- Surrender: late surrender helps slightly where offered.
Basic strategy in brief
The full chart has a decision for every hand against every dealer up-card. The core rules cover most situations:
Hard hands
- 8 or less: always hit.
- 9: double against 3–6, otherwise hit.
- 10: double against 2–9, otherwise hit.
- 11: double against 2–10; against an ace, hit (or double if dealer stands on soft 17).
- 12: stand against 4–6, otherwise hit.
- 13–16: stand against 2–6, otherwise hit.
- 17 or more: always stand.
Soft hands (with an ace counted as 11)
- Soft 13–14: double against 5–6, otherwise hit.
- Soft 15–16: double against 4–6, otherwise hit.
- Soft 17: double against 3–6, otherwise hit.
- Soft 18: double against 2–6, stand against 7–8, hit against 9–ace.
- Soft 19 or more: stand.
Pairs
- Always split aces and eights.
- Never split tens or fives.
- Split 2s, 3s and 7s against 2–7; 6s against 2–6; 9s against 2–6 and 8–9.
Print the full chart for the specific rules of the table you play — many are freely available — and follow it without deviation.
Why counting doesn't work online
RNG blackjack shuffles after every hand, so there is no shoe to track. Live dealer tables use physical cards but typically cut deep into the shoe or use continuous shufflers, and betting spreads are limited. Basic strategy is the ceiling for online play.
Bonuses and blackjack
Most bonuses count blackjack at 10% or less toward wagering, and some exclude it. If you play mainly blackjack, decline the bonus.
See which casinos offer the best blackjack tables in our blackjack guide.
Casinos mentioned in this guide
Verification pending. Our editors have not finished verifying this casino, so we don't link out to it yet.Focus: Crypto< 1 hr
Verification pending. Our editors have not finished verifying this casino, so we don't link out to it yet.Focus: Sports Betting1–3 days
Frequently asked questions
Should I take insurance?
About the author
Research & editorial
CasinoFinder's editorial team compiles casino facts from each operator's own terms, help centre and licence pages, and links every source on the review. None of the casinos listed has yet completed editorial verification or hands-on testing: until it does, a review shows sourced facts only — no rating, no outbound link — and says what is still unconfirmed.
- Operator terms and banking policies
- Bonus terms
- Licensing information
Gambling involves risk and should be treated as entertainment, not a way to make money. You must be 18 or older (or the legal age in your jurisdiction) to gamble online. Set limits, never chase losses, and stop if it stops being fun.
If gambling is affecting you or someone you know, free confidential help is available. Responsible gambling resources