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Last updated: September 2026
Blackjack side bets are optional wagers on specific card combinations or dealer outcomes. You place one alongside your regular blackjack bet, but it has its own rules, paytable, and result. You can win the side bet while losing the main hand—or win the hand while losing the side bet.
The two names beginners are most likely to encounter are Perfect Pairs and 21+3. Their advertised payouts can be eye-catching. To decide whether to play, you also need to know how often each outcome occurs and what the posted paytable pays for it.
Quick answer: Side bets can add variety to blackjack, but they generally carry a higher house edge than a favorable main game played with basic strategy. Check the rules and set a separate limit before placing one.
Quick Answer: What Are Blackjack Side Bets?
Blackjack side bets are optional wagers placed alongside the main blackjack bet that pay based on specific card combinations or dealer outcomes. Common examples include Perfect Pairs, 21+3, and insurance; each has its own rules, payouts, probabilities, and house edge.
Editorial Note
This guide explains how blackjack side bets work, including their qualifying outcomes, paytables, odds, and house edge. Side bets are separate from the main blackjack wager, and a higher advertised payout does not necessarily mean a better-value wager.
Table of Contents
- How Do Blackjack Side Bets Work?
- What Are the Most Common Blackjack Side Bets?
- What Is the Perfect Pairs Blackjack Side Bet?
- How Does the 21+3 Blackjack Side Bet Work?
- Is Blackjack Insurance a Side Bet?
- How Do Blackjack Side-Bet Payouts and Odds Differ?
- Which Blackjack Side Bet Has the Best Odds?
- Do the Number of Decks and Paytable Affect Side-Bet Odds?
- Do Side Bets Change Basic Blackjack Strategy?
- How Much Should You Bet on Blackjack Side Bets?
- Can You Play Blackjack Side Bets Online or at a Live Dealer Table?
- Are Blackjack Side Bets the Same as Sports Betting Props?
- What Should You Check Before Placing a Blackjack Side Bet?
- Are Blackjack Side Bets Worth Playing?
- Blackjack Side Bets FAQ
- Final Thoughts
Blackjack Side Bets at a Glance
What is the wager?
An optional bet on a defined result, such as a pair in your first two cards or a poker-style combination made with the dealer’s upcard.
What decides its value?
The probability of each result, its payout, the number of decks, and the exact game rules—not the largest advertised prize alone.
How Do Blackjack Side Bets Work?
First, place the required main blackjack wager. If the table offers an eligible side bet, select it and confirm its amount before betting closes. After the initial cards are dealt, the game checks the side bet’s qualifying cards or outcome and settles that wager under its posted rules. Your regular blackjack hand continues under the main game’s rules.
For example, suppose you wager $10 on the main hand and $2 on Perfect Pairs. If your first two cards qualify for a payout, the $2 side bet can win regardless of whether your $10 blackjack hand ultimately wins. The two wagers are accounted for separately, but both affect your total bankroll.
If you are learning the sequence of main bets, doubles, splits, and optional wagers, How Do Blackjack Bets Work Online? explains where each decision fits into a hand.
What Are the Most Common Blackjack Side Bets?
Availability varies by table. The comparison below explains the outcomes to look for; it is not a universal payout chart. Always use the paytable displayed in the game you are playing.
| Side bet | Cards or event used | What may qualify | Check before betting |
|---|---|---|---|
| Perfect Pairs | Your first two cards | A pair of the same rank; payouts commonly distinguish mixed-color, same-color, and same-suit pairs. | Which pair categories pay and the amount for each. |
| 21+3 | Your first two cards plus the dealer’s upcard | Qualifying three-card poker combinations, commonly including a flush, straight, three of a kind, straight flush, or suited three of a kind. | Which combinations the specific version recognizes and how it ranks overlapping results. |
| Insurance | Dealer’s upcard and hole card | The dealer has blackjack after showing an ace. | When insurance is offered, its maximum size, and its 2:1 payout. |
| Other named bets | Depends on the game | Games may advertise Lucky Ladies, Royal Match, Super 7s, or another named wager. | The exact eligible cards, timing, limits, and paytable. |
Some game variants use similar names with different rules. A familiar side-bet label is a starting point for reading the rules, not proof that two tables offer identical wagers.
What Is the Perfect Pairs Blackjack Side Bet?
Perfect Pairs pays when your first two cards have the same rank, subject to the table’s categories. A mixed pair is the same rank in different colors; a colored pair is the same rank and color but a different suit; and a perfect pair matches both rank and suit, which requires a multi-deck shoe. For example, two kings of hearts can form a perfect pair when they come from different decks.
The rank itself usually does not make a pair of aces pay more than a pair of twos. The relevant distinction is the category shown on the paytable. Review that paytable before assuming that every pair wins or that every winning pair pays the same amount.
How Does the 21+3 Blackjack Side Bet Work?
21+3 combines your two initial cards and the dealer’s upcard into a three-card hand. The side wager pays if that combination matches one of the game’s listed poker-style outcomes. You do not need to win your blackjack hand to win 21+3.
Consider your 8 of hearts and 9 of hearts alongside the dealer’s 10 of hearts. Those three cards form a straight flush. The amount paid depends on the table’s 21+3 schedule. Another version may define or price its winning combinations differently, so check the rules rather than applying a payout remembered from a different table.
Key Insight: 21+3 Uses Three Cards
⚙ Your cards
Your first two blackjack cards form two-thirds of the 21+3 combination.
Dealer’s card
The dealer’s upcard completes the three-card combination used to settle the side bet.
Visual Model: How 21+3 Is Formed
The three cards are then compared with the 21+3 outcomes listed on that table’s paytable.
Is Blackjack Insurance a Side Bet?
Yes. When the dealer shows an ace, insurance is a separate wager that the dealer has a ten-value card in the hole and therefore blackjack. It typically pays 2:1 if the dealer has blackjack and loses otherwise. It does not change the cards in your original hand.
Insurance is distinct from Perfect Pairs and 21+3 because it is offered only at a particular point in the deal. A “natural” blackjack in your own hand does not automatically make insurance favorable. Whether it is a good wager depends on the composition of the remaining cards, not on a desire to protect a promising hand.
Quick Answer
When is insurance offered? It is offered when the dealer’s upcard is an ace, before the remaining hand is completed.
Does insurance protect your blackjack hand? No. It is a separate wager on whether the dealer has a ten-value card in the hole.
How Do Blackjack Side-Bet Payouts and Odds Differ?
A payout states what a winning result returns relative to your side-bet stake. A probability measures how often that result occurs. The house edge combines the probabilities of all possible results with their payouts to describe the casino’s average advantage per amount wagered over many trials.
For a simple illustration, suppose a $1 wager wins $5 in profit one time in ten and loses $1 the other nine times. Its average result is (0.10 × $5) − (0.90 × $1) = −$0.40 per $1 wagered. The 5:1 payout sounds large, but the hypothetical wager has a 40% house edge. This is an illustration of the calculation, not the odds of any blackjack side bet.
When reading a paytable, distinguish “X to 1” profit from “X for 1” total return if the game uses those terms. Then check every winning category and the outcomes that lose. A headline jackpot does not describe the average return of the whole wager.
| Term | What It Tells You | What It Does Not Tell You |
|---|---|---|
| Payout | How much a qualifying result returns according to the paytable. | How frequently that result occurs. |
| Probability | How often a particular result is expected to occur. | How much the result pays by itself. |
| House edge | The casino’s mathematical advantage over many trials. | The result of one individual hand. |
| Paytable | The complete schedule connecting outcomes with payouts. | A guarantee of a particular result. |
When comparing an implied probability with a quoted betting price, an odds calculator can help translate the numbers into a percentage. For blackjack side bets, however, the complete paytable and outcome probabilities still determine the wager’s mathematical return.
Implied Probability Calculator
Enter positive decimal-style odds to see the corresponding implied probability percentage.
The Payout Is Only One Piece of the Equation
Which Blackjack Side Bet Has the Best Odds?
There is no reliable winner based on the names Perfect Pairs and 21+3 alone. Two tables can offer the same named bet with different paytables, deck counts, or qualifying combinations. Those differences change the mathematical return. Compare the house edge for the exact rules offered when that information is available; otherwise, compare the full rules and avoid treating the highest top payout as the best value.
Basic strategy applies to decisions on the main blackjack hand. It does not turn an unfavorable optional paytable into a favorable one. For the foundation behind the main wager, read Learn Blackjack Basic Strategy and Blackjack Strategy for Beginners.
Quick Answer
Is the biggest payout automatically the best side bet? No. The payout must be considered alongside the probability of each qualifying outcome and the complete paytable.
Can basic strategy improve a side bet? Basic strategy applies to the main blackjack hand and does not change the mathematical terms of a separate side bet.
Do the Number of Decks and Paytable Affect Side-Bet Odds?
Yes. A perfect pair of the same rank and suit requires duplicate cards from multiple decks, so deck composition matters. The number of decks also affects the frequency of 21+3 combinations. Separately, a table can keep the same qualifying outcomes while changing what each one pays.
When comparing an online blackjack table with a live dealer blackjack table, check both the deck count and the posted side-bet schedule. The format alone does not establish which side bet has a lower house edge. Online Blackjack vs. Live Blackjack explains the broader differences between those formats.
What Can Change the Side-Bet Math?
| Check | Why It Matters |
|---|---|
| Number of decks | Card composition can affect the frequency of certain combinations. |
| Qualifying outcomes | Defines exactly which card combinations produce a win. |
| Payout schedule | Determines how each qualifying result is paid. |
| Bet limits | Determines the minimum and maximum amount you can stake. |
Do Side Bets Change Basic Blackjack Strategy?
Generally, placing a side bet does not change the correct hit, stand, double, or split decision for the main hand. Make those decisions using the main game’s rules and an appropriate basic-strategy chart. Do not split a pair simply because the original two cards won a Perfect Pairs wager; that side bet has already been determined under its own rules.
The searches in the attached GSC export include questions about when to split online blackjack. Splitting is a main-hand decision, so it deserves a separate explanation rather than being presented as a side-bet tactic. See Splitting in Blackjack: When to Do It and When to Avoid It for that decision.
Key Insight: Keep the Bets Separate
⚙ Main hand
Hit, stand, double, and split decisions are determined by the main blackjack rules.
Side bet
The side bet is settled according to its own qualifying outcome and paytable.
How Much Should You Bet on Blackjack Side Bets?
Decide on a session budget and a separate optional-wager limit before you play. If you choose to make a side bet, use an amount you are comfortable losing independently of the main hand. There is no universal percentage of a blackjack wager that makes a higher-edge side bet mathematically sound.
Track total exposure per round. A $10 main wager plus a $2 side bet puts $12 at risk before any additional main-game decisions. Repeating that $2 side bet for 50 rounds stakes another $100 across the session. A winning side bet may offset a particular loss, but it is not a dependable way to recover losses or change the main game’s long-run results.
Same $200 Bankroll, Different Exposure
Larger wagers leave fewer betting units and expose more of the bankroll on every decision.
Quick Answer
Should a side bet be included in your bankroll calculation? Yes. Count the main wager and every side wager when measuring total exposure per round.
Does a smaller side bet change the house edge? No. It reduces the amount at risk, but it does not change the mathematical terms of the wager.
Can You Play Blackjack Side Bets Online or at a Live Dealer Table?
Only when the specific game offers them. In an online blackjack game, look for a separate betting area and an accessible rules or paytable screen. At a live dealer table, review the displayed betting spots, limits, and game help before betting closes. If a listed side bet is unavailable on a particular table, do not assume that a different blackjack table has the same options.
To explore current game categories, start with MyBookie’s blackjack games or live casino, then inspect the rules of the individual table. The broader online casino page covers the available casino sections. Game availability and side-bet menus can change.
| Format | Check Before Betting |
|---|---|
| Online blackjack | Separate side-bet area, rules screen, paytable, limits, and available options. |
| Live dealer blackjack | Displayed betting spots, game rules, limits, and the side-bet schedule. |
| Different table | Do not assume the same side bets or payouts apply; inspect that table’s rules. |
Are Blackjack Side Bets the Same as Sports Betting Props?
No. A blackjack side bet is an optional casino wager settled by specified cards or dealer events. A sports prop is tied to an event in a sports betting market. Both involve a stake and a possible payout, but blackjack paytables are read differently from sportsbook lines and their betting odds.
If you also use online betting to bet on sports, keep the concepts separate: odds for sports markets do not tell you the probability or house edge of 21+3 or Perfect Pairs. Likewise, bitcoin betting or crypto betting describes a funding or wagering context, not a special blackjack side-bet strategy. MyBookie’s guide to using Bitcoin at online sportsbooks and casinos covers that separate topic.
Key Insight: Different Betting Systems
⚙ Blackjack side bet
Settles according to specified cards, combinations, or dealer events and a casino paytable.
Sports prop
Settles according to a defined sports event or statistical outcome and sportsbook rules.
What Should You Check Before Placing a Blackjack Side Bet?
Confirm the qualifying cards, every winning category, the complete payout schedule, the minimum and maximum wager, when betting closes, and whether the bet is available on that table. Check the deck count if you are comparing mathematical returns. Finally, decide how the extra stake fits your session limit before selecting it.
For a wider introduction to games and their rules, use the MyBookie Online Casino Guide. The Betting Academy offers additional betting education, while Beginner’s Guide to Casino Games helps put blackjack alongside other casino games.
| Check | Question to Answer |
|---|---|
| Qualifying outcome | What exact cards or dealer result make the side bet win? |
| Payout schedule | What does each winning category pay? |
| Deck count | How many decks does the table use? |
| Bet limits | What are the minimum and maximum side-bet amounts? |
| Timing | When does betting close and when is the wager settled? |
| Bankroll | How does the extra wager affect your total exposure per round? |
The Beginner’s Rule
Read the paytable before reading the payout. First identify what wins, then see how often those outcomes occur, what each pays, and how the extra wager fits your bankroll. That sequence gives you a clearer picture of a blackjack side bet than the headline payout alone.
Are Blackjack Side Bets Worth Playing?
If your goal is to minimize the casino’s mathematical advantage, compare the actual side-bet paytable against the main game before adding an optional wager. If your goal is entertainment, you can decide whether the extra outcome is worth its cost within a set budget. Neither a recent winning streak nor a long run without a side-bet win changes the next wager into a guaranteed opportunity.
The practical approach is to learn the main game first, read the specific side-bet rules, and choose deliberately whether to place that extra wager. The Dos and Don’ts of Blackjack Betting
Blackjack Side Bets FAQ
Can I win a side bet and lose my blackjack hand?
Yes. A qualifying side-bet result can pay even if the dealer later beats your main hand. The two wagers are settled under their respective rules.
Can I win my blackjack hand and lose the side bet?
Yes. Your hand can beat the dealer without forming the combination required for Perfect Pairs, 21+3, or another optional wager.
Does a bigger advertised payout mean a better side bet?
No. You also need the probability of that result and the payouts for every other outcome. Compare the complete paytable and, where available, the house edge for the exact game.
Can I add a Perfect Pairs or 21+3 bet after seeing my cards?
Normally no. These bets are generally placed before the initial deal, subject to the table’s posted rules and betting cutoff.
Does card counting make every blackjack side bet profitable?
No. A standard count aimed at the main hand does not automatically provide the information needed to evaluate a particular side bet. Its rules and remaining-card composition would need separate analysis.
Should beginners play blackjack side bets?
Beginners are better served by first understanding the main game and basic strategy. If you later choose a side bet for entertainment, read its rules and include its stake in your session budget.
Summary
- Blackjack side bets are optional wagers with separate rules, payouts, probabilities, and house edges.
- Common side bets include Perfect Pairs, 21+3, and insurance, but the exact terms vary by game.
- A large advertised payout does not necessarily mean better value; check the paytable, qualifying outcomes, number of decks, and house edge.
- Side bets can add variety, but they generally carry more house edge than a favorable main blackjack wager played with basic strategy.
- Set a separate side-bet limit so the extra wager does not change the bankroll you intended for the main game.
NEXT STEP
Understand the Main Blackjack Bet First
Before adding optional wagers, learn how the main blackjack bet works and how different betting decisions affect a hand. How Do Blackjack Bets Work Online?
Learn Blackjack Betting RulesFinal Thoughts
Blackjack side bets can be worth considering when you understand exactly what you are wagering on, how often the qualifying result occurs, and what the paytable offers. They are optional additions to the main hand, so you can evaluate them separately rather than treating them as part of the basic blackjack strategy.
The key takeaway is that the payout is only one part of the side-bet equation. Compare the rules, probability, paytable, number of decks, and house edge before placing an optional wager, and keep a separate limit for side bets within your overall bankroll. That gives you a clearer basis for deciding whether the added variety fits the way you want to play.
MyBookie: Bet On Anything. Anywhere. Anytime.
Important: Sports betting involves risk. No strategy guarantees results, and managing exposure is essential.
About the Author
David Strauss is a veteran sportsbook professional with more than 20 years of experience in online gaming, bookmaking, proposition wagering, security, and risk management. Writing from an operator’s perspective, he analyzes betting odds, line movement, sportsbook risk, market behavior, and long-term value. His work emphasizes implied probability, disciplined bankroll management, and determining whether the available price justifies the risk.
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