Blackjack Insurance

Blackjack insurance is one of those bets that looks simple and hides a small trap. The dealer flips an Ace, the pit calls "insurance open," and everyone at the table has a few seconds to decide. This page explains exactly what the bet is, what it pays, how it settles against your main hand, and why the math works out the way it does. It also covers even money, the version of the same bet you will be offered when you are holding a blackjack yourself.

How the insurance bet works: size, payout and settlement

Insurance is a side bet that the dealer has blackjack, and it is treated independently of your main wager². It is offered when the dealer's up card is an Ace¹. In practical terms, you are betting that the dealer's face-down card is a ten, jack, queen or king, since any of those paired with an Ace makes blackjack⁸.

The mechanics run in a fixed sequence:

1. The dealer's first card is an Ace. Before players act on their hands, the dealer offers insurance.
2. Each player who wants it places a separate wager, at most half of their original bet. At Deltin's tables, for example, insurance is "an option to place an additional bet equal to or less than half the initial betting amount"⁴. Hoiana's rules say the same: the insurance bet can be up to half of the original wager⁹.
3. The dealer checks the hole card. If the dealer has a ten or an Ace up, she checks whether the face-down card makes 21¹.
4. If the dealer has blackjack, insurance pays 2 to 1, meaning the player receives two dollars for every dollar bet¹. If the dealer does not have blackjack, players lose the insurance money and the hand continues¹⁰.

The payout is the same everywhere you will find it. Macau's official table rules state that when the dealer has blackjack, the insurance bet is paid at twice its value³. Live dealer studios run it identically: Lightning Blackjack pays insurance bets at 2 to 1¹¹, and 888casino's live tables offer insurance when the dealer shows an Ace at the same 2 to 1 payout¹².

One detail worth knowing: the bet is optional and individual. Each player decides for themselves, and a table where nobody takes insurance simply moves on. There is no obligation, and in most hands the offer never appears at all, because it only exists against an Ace.

The odds behind the bet: dealer hole-card probabilities

Insurance wins when the dealer's hole card is a king, queen, jack or ten⁸. That is the whole bet. So the question is how often an Ace up card is hiding a ten-value card underneath.

The raw material is the deck. Picture cards count as 10, and the tens themselves count at face value, so in a standard 52-card deck there are 16 ten-value cards out of 52⁴. Most tables deal from a shoe of six or eight decks, which keeps that proportion steady hand after hand¹³. The dealer's own hand gives you one piece of information: you have seen the Ace, so the hole card is drawn from the remaining unseen cards.

What the bet does not do is respond to the situation on the table. The dealer's bust chances swing enormously with the up card: about 42.1% with a 6 showing, about 26.0% with a 7, about 21.2% with a 10, and only about 11.7% with an Ace⁶. But none of that matters to insurance, because insurance is not a bet on the dealer busting or on your hand winning. It is a bet on one card, the hole card, and nothing else.

That narrowness is the point. Your main hand, your position at the table, the count of the shoe so far, whether you are sitting on 20 or on 8: none of it changes what insurance pays or how often it wins. The bet is the same every time an Ace appears, which is exactly why its house edge is a fixed number rather than a range.

House edge on insurance: roughly 7%

The house edge on insurance is approximately 7%⁵. Compare that with the main game: an eight-deck table paying 3 to 2 for a blackjack, played with basic strategy, carries a house edge of only around 0.5%⁶. Insurance is more than ten times as expensive as the game it sits inside.

The reason is a mismatch between the payout and the probability. Insurance pays 2 to 1, but the hole card is a ten-value card less often than one time in three. When a bet pays 2 to 1 but wins less than a third of the time, the difference between the true odds and the payout odds lands in the house's pocket on every offer. If you want to see how that gap gets built into casino bets generally, our page on true odds vs payout odds breaks it down.

This is why the published basic strategy charts are unanimous. The four-deck to eight-deck strategy simply says: never take insurance or "even money"⁷. That is not a style preference or a conservative recommendation. It is the mathematically correct play for anyone who is not tracking the composition of the shoe, and it is the one line on the chart that has no exceptions for hand totals or dealer up cards, because insurance is not really part of your hand at all.

For card counters the story is different in principle: if you know that the remaining shoe is unusually rich in ten-value cards, the bet can flip to favorable. But that is a specialist case, and for everyone else the roughly 7% edge stands. Our page on card counting in blackjack covers how that tracking works.

Even money: the same bet offered when you hold a blackjack

Say you are dealt a blackjack and the dealer shows an Ace. Your natural normally pays 3 to 2, but there is a chance the dealer also has blackjack, in which case the hand is a push and you win nothing. The dealer will often offer you "even money": take a guaranteed 1 to 1 payout right now instead of gambling on the push.

Hoiana's rules describe it plainly: when a player has blackjack and the dealer shows an Ace, the winning bet is paid at 1 to 1⁹. Paradise City casino in South Korea lists even money and insurance side by side among the options at its tables¹⁴.

Here is the part most players miss: even money is insurance. If you take insurance for half your bet while holding a blackjack, the two bets cancel out into the same guaranteed even-money result. That is why the basic strategy chart treats them as one instruction: never take insurance or even money⁷. The 4-deck chart at Wizard of Odds, for instance, lists them together as a single "no"⁷.

The felt-level difference is only in how it is offered. Insurance is framed as protecting a normal hand; even money is framed as locking in a win. The framing feels different, but the underlying wager, the payout and the house edge are identical.

Insurance versus the main hand: how the two bets settle independently

Insurance is treated independently of the main wager², and the four possible outcomes are worth spelling out.

If the dealer has blackjack, the insurance bet pays 2 to 1 and you lose your initial bet¹⁵. If you staked the full half, the two amounts offset: a 100 main bet loses, a 50 insurance bet returns 100 in winnings plus the 50 stake back, so you finish exactly even on the round. That offsetting is where the name "insurance" comes from.

If the dealer does not have blackjack, the insurance bet is lost and the hand plays out normally¹⁰. Your main bet is untouched by the insurance result either way.

If you also have blackjack when the dealer does, it is a push: you keep your original bet, no gain, no loss¹⁶. This is the case even money tries to pre-empt.

One variant rule changes the picture. Under the European no hole card rule, the player loses every bet on the table if the dealer gets a blackjack¹⁷. On those tables the dealer does not peek, so insurance is the only protection available against a dealer natural, and the settlement of your main bet happens at the end of the round rather than immediately. Our page on blackjack rule variations explains the peek and no-hole-card differences in more detail.

The key habit is to think of insurance as a separate wager with its own odds, not as part of your hand. It wins or loses on a single card, whatever you are holding.

Insurance rules across tables and variants: limits and differences

The core bet is remarkably uniform: an Ace up card, a stake up to half the main bet, a 2 to 1 payout. But the details shift from jurisdiction to jurisdiction and table to table.

Payout: 2 to 1

The Macau rule is the notable outlier: the official rules allow an insurance wager from half up to the full amount of the original bet, at the dealer's discretion³, rather than capping it at half. If you are playing in Macau, expect the offer to potentially be larger than what you would see elsewhere.

Table layouts themselves carry the payout in print. New Jersey's regulation of the 6 to 5 blackjack variation, for example, requires the layout to state "Insurance pays 2 to 1"²¹. The inscription on the felt is the contract.

Variants mostly keep insurance untouched. Live dealer studios run it identically to the floor. The main things that change from table to table are the number of decks, from one to eight¹³, and the betting limits, which are displayed at each table⁹.

What a first-timer can expect at the table

If you are new to blackjack, here is how the moment plays out. You place your main bet before the deal. The dealer gives every player two cards and herself two cards, only one of them face up¹². If that face-up card is an Ace, the dealer will announce that insurance is available, usually with a sweep of the hand over the layout, and players have a short window to place the extra chips in the insurance line, a separate strip on the felt in front of each betting spot.

You do not need to say anything to decline. If you place no chips, the offer simply passes. If you take it, put the chips in the insurance line, not on top of your main bet, because the two wagers settle separately.

The dealer then peeks at the hole card. If she has blackjack, the round ends immediately: insurance winners are paid 2 to 1, main bets are collected, and players who also have blackjack keep their original bet¹. If she does not, the insurance chips are swept away and the hand continues with hits, stands, doubles and splits as normal.

A few practical notes for your first session:

• Table minimums vary. New players might prefer the lowest minimum tables, usually with bets from $5 to $15².
• The insurance decision is fast. The dealer will not wait long, so decide before the Ace appears whether you ever take it. Given the roughly 7% edge⁵, most experienced players never do.
• Insurance is not the same as the other decisions at the table. Hitting, standing, doubling and splitting all shape your hand; insurance is a standalone side bet, closer to the side bets described on our blackjack side bets page.
• If you are unsure of the broader flow of a blackjack hand, our blackjack basic strategy page covers the full decision chart, of which "never take insurance" is the simplest line.

The short version: insurance is a real bet with real rules, offered to every player at a clearly defined moment, and it settles instantly. Knowing how it works keeps the offer from being confusing; knowing the odds keeps it from being expensive.