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UKBlackjack Insurance Explained: How It Works, Odds, and Payouts
Blackjack insurance is generally not worth taking because the odds favor the casino, making it a poor long-term bet for most players. Insurance becomes available when the dealer’s face-up card is an Ace, giving you the option to place an additional wager worth up to half your original bet. If the dealer has blackjack, the insurance bet pays 2:1, helping offset the loss of your main wager.
This guide explains how blackjack insurance works, breaks down the odds and payouts, and explores when taking the bet might be worthwhile. It also covers the insurance house edge, how it affects your overall betting strategy, and why experienced card counters are among the few players who can occasionally use it to their advantage.
What Is Insurance in Blackjack?
Insurance in blackjack is a side bet offered when the dealer’s upcard is an Ace. You can place it before seeing how you’ll play your hand. It protects you in case the dealer’s downcard gives them blackjack.
Blackjack house odds, depending on the situation, may have players feeling like insurance is necessary. Here’s how it works.
- You can usually bet half of your original wager.
- The insurance pays 2:1 if the dealer has blackjack.
- If the dealer doesn’t have blackjack, you lose the insurance bet, but continue playing your main hand.
How Does Insurance Work in Blackjack?
Here’s a step-by-step outline of how insurance bets work in blackjack.
| Step | Description |
|---|---|
| 1 | Your first two cards are dealt; the dealer shows an Ace. |
| 2 | You decide whether to place insurance (usually up to half your original bet). |
| 3 | Dealer checks their downcard. |
| 4 | If dealer has a 10-point card, dealer has blackjack → insurance bet wins at 2-1. |
| 5 | If dealer does not have blackjack, insurance bet loses; the hand plays out as normal. |
Some blackjack tables use rules where the dealer hits on a soft 17 — a hand like Ace–6 that totals either 7 or 17. This can have a subtle impact on how often the dealer ends up with blackjack or how aggressively the hand plays out after insurance is offered. If you’re not familiar with the rule, it’s worth reviewing what is a soft 17 in blackjack before deciding how to approach side bets like insurance.
Odds for the Insurance Bet
When the dealer shows an Ace, taking insurance might seem like a smart safety net, but the math tells a different story. The house edge varies depending on the number of decks in play, with single-deck blackjack generally offering slightly better insurance odds.
| Insurance Bet | Single-Deck Blackjack | Six-Deck Blackjack |
|---|---|---|
| Chance of dealer having blackjack | 31.37% | 30.87% |
| Insurance payout | 2:1 | 2:1 |
| House edge | 5.88% | 7.40% |
| Expected loss per $100 wagered | $5.88 | $7.40 |
| Basic strategy recommendation | Decline insurance | Decline insurance |
These figures assume a fresh deck or shoe with only the dealer’s Ace removed. Actual probabilities change as cards are dealt, particularly when more 10-value cards have already been played.
Insurance remains a negative expected value (EV) bet under these starting conditions. Experienced card counters may occasionally identify favorable situations, although most players are better off declining insurance regardless of their hand.
- Single-deck blackjack has a 31.37% chance of the dealer having blackjack, compared with 30.87% in six-deck games.
- The house edge is 5.88% in single-deck blackjack and 7.40% in six-deck games.
- For every $100 wagered on insurance, the expected loss is $5.88 in single-deck games and $7.40 in six-deck games.
- Insurance pays 2:1, although basic strategy recommends declining it due to its negative expected value (EV).
What Are the Break-Even Odds for Blackjack Insurance?
Blackjack insurance needs to win more than 33.33% of the time to be profitable over the long run. Since the bet pays 2:1, you need the dealer to have blackjack more than once in every three insurance bets to come out ahead.
In a single-deck game, the dealer has approximately a 31.37% chance of holding blackjack when only their visible Ace is accounted for. That drops to 30.87% in six-deck games, leaving both below the break-even point. For example, if you place three $10 insurance bets and win one, you’ll receive $20 in profit from the winning bet and lose $20 on the other two, breaking even.
The odds can shift as cards leave the deck, particularly when fewer or more 10-value cards remain than expected. Unless you can identify when the probability exceeds 33.33%, insurance generally favors the casino.
Insurance in Blackjack Cost & Examples
How much does insurance cost in blackjack? Usually, you’re looking at half of your original bet but some casinos require an exact 50%, and others allow any amount up to that.
As far as how much blackjack insurance pays out, it’s 2:1. If you bet $10 on insurance and win, you receive $20 plus your original $10 back.
To showcase examples from both sides, let’s suppose you get dealt a hand (e.g.: 10+7=17), the dealer’s upcard is an Ace, and they offer you insurance before the game proceeds.
Example: Winning an Insurance Bet
Original bet: $20
Insurance bet: $10 (half)
Dealer has blackjack → you win $20 from insurance.
You lose your $20 main bet, but break even overall.
Example: Losing an Insurance Bet
Original bet: $20
Insurance bet: $10
Dealer does not have blackjack → you lose the $10 insurance.
Hand plays out; main bet may still win or lose.
Is Insurance Ever Worth It in Blackjack?
Whether insurance bets are worth it depends on your personal blackjack strategy and how you’re playing at a table.
- No, not in standard games — the odds don’t justify the payout.
- Yes, if you’re card counting and know the deck is rich in 10-value cards.
- Some high-stakes players use it for emotional security, but that’s a psychological choice, not a strategic one.
What Is Even Money in Blackjack?
Even money in blackjack is an option that lets you take a guaranteed 1:1 payout on a natural blackjack when the dealer has an Ace showing. Instead of waiting to see whether the dealer also has blackjack, you can accept an immediate payout equal to your original bet. For example, if you wager $20 and receive blackjack, taking even money gives you a $20 profit rather than the usual $30 you’d receive from a 3:2 payout.
It is essentially another form of blackjack insurance. If you decline it, you’ll receive the full 3:2 payout if the dealer doesn’t have blackjack, or push if they do. Taking even money removes that uncertainty, although you’re giving up a higher potential payout.
Basic blackjack strategy generally recommends declining even money because the full blackjack payout offers better value over time. The exception is when card counting indicates that enough 10-value cards remain in the deck to make insurance worthwhile. Otherwise, you’re usually better off keeping your original blackjack and letting the hand play out.
Should You Take Even Money?
You generally shouldn’t take even money in blackjack because declining it gives you a better expected return over time. Accepting even money guarantees a 1:1 payout on your blackjack, while turning it down leaves you eligible for the full 3:2 payout if the dealer doesn’t also have blackjack.
For example, with a $20 bet, taking even money guarantees a $20 profit. Declining it gives you a chance to win $30, although you’ll receive nothing if the dealer also has blackjack and the hand ends in a push.
Basic blackjack strategy recommends declining even money, even when you’re tempted by the guaranteed payout. Experienced card counters may find exceptions when the remaining deck contains an unusually high proportion of 10-value cards. For most players, sticking with the standard blackjack payout is the better long-term decision.
Common Misconceptions About Blackjack Insurance
Insurance Doesn’t Protect Your Hand
As strange as it sounds, insurance won’t actually protect your hand or original bet. When the dealer shows an Ace, players typically have the option to place a second wager, called an insurance bet, equal to up to half their initial bet. It pays 2:1 if the dealer’s hidden card is a 10-value card, giving them blackjack.
The crucial detail is that this wager has nothing to do with your cards. It’s simply a side bet on the dealer’s hidden card.
Consider a straightforward example. You’re holding 20, one of the strongest hands in blackjack. The dealer shows an Ace, and you decide to take insurance. If the dealer reveals a 10 underneath, they have blackjack. Your original $10 bet still loses.
The important takeaway here is that your hand strength doesn’t influence the insurance decision. The probability of the dealer having a 10-value card remains the same.
Why It’s Called “Insurance” When It’s Really a Side Bet
The term insurance can be misleading, and intentionally so. It sounds cautious and protective, when in reality it’s just another wager.
Using the same scenario, you bet $10 and end up with 20. The dealer shows an Ace and offers insurance. You set $5 aside in case the dealer has blackjack.
If they do, your $10 main bet loses, but the insurance bet returns $10. The two cancel out, leaving you at break-even. The side bet simply balanced the loss.
Some jurisdictions have even discussed whether casinos should use more accurate terminology, since the label can give players a false sense of security.
The Psychological Trap of Protecting Your Hand
Casinos use insurance to tap into your psychological bias. Getting insurance becomes tempting when you’re holding a strong hand like a 19, as your instinct would naturally be to protect it.
However, the math doesn’t change based on your card. It doesn’t matter whether you have 12 or 20. The chance of the dealer getting a 10-card under that Ace is still the same.
Players who take insurance to “protect” a strong hand are reacting purely based on emotion.
Over time, those small side bets accumulate and can quietly chip away at your bankroll, shifting the advantage back to the house.
Blackjack Insurance FAQs
No. Insurance is only offered when the dealer’s upcard is an Ace. With a 10 card showing, most dealers simply peek for an Ace underneath, and play continues without any side bet.
Casinos offer insurance because it makes them money. The bet carries a built-in house edge, so the casino profits over time, and it sells easily because it feels like protection when the dealer shows an Ace.
When the dealer asks for insurance, place chips worth up to half your bet on the insurance line above your main wager. To decline, do nothing or wave it off. Online, tap the Insurance or No Insurance button.
No. Each hand is a separate decision, so you can insure one hand and decline on another. Insurance is placed per hand, and each insurance bet can be up to half that hand’s original wager.
Should You Take Insurance in Blackjack?
Here’s the bottom line: insurance is almost never a good bet unless you’re counting cards or playing in favorable conditions. The payout (2:1) doesn’t match the odds of the dealer holding blackjack, and you’ll lose more than you win over the long run.
The point of playing a game like blackjack is to take advantage of the mild edge you can get against the house, not give it a further edge back. Most players are better off sticking to basic strategy for blackjack and avoiding side bets altogether.
