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Play Online Blackjack at JeffBet IE

Play the best online blackjack games in Ireland at JeffBet. Sign up for an account, claim your welcome bonus (terms and conditions apply), and access over 50 top blackjack titles from RNG video games to real dealer live streams. Go head-to-head against the dealer in a bid to reach the highest winning hand of 21 points and claim the round. Place side bets for more exciting ways to win, and try themed titles with special bonus rounds for even more win potential. Explore the best of online blackjack at JeffBet today.

What is Online Blackjack?

Online blackjack is one of the longest-standing casino card games in the world. It’s a simple card game with one objective: to end the round with a hand closest to 21 points as possible without going over, beating the dealer’s hand to win the payout. There are many different blackjack variants; some let you play multiple hands at once, some have unique side bets, and others offer straightforward gameplay for when you’re on the go.

How Blackjack Plays Out

Standard online blackjack games can be played with between one and eight decks of standard playing cards, jokers omitted, with the average around six to eight decks. The cards are valued as follows:
  • Ace: 1 or 11 points, depending on what’s best for the hand.
  • Picture cards (Jack, Queen, King): 10 points
  • Number cards: Face value, between 2 and 10 points.
Gameplay begins with placing your initial bet during the allocated betting window (for live games only, because you play RNG games at your own pace), including any side bets as required. Once bets have been accepted, the dealer will deal out two cards to each player, always dealing themselves last and displaying one of their cards face-up and one face-down. Any side bets involving the initial deal will be resolved, and you’ll be offered the following play choices:
  • Stand: Stick with the hand you currently have.
  • Hit: Take another card. This can be done multiple times until you stand or your hand goes over 21 points and you bust out of the round.
  • Double down: Double your bet and take one more card.
  • Split: If you have a pair, you can split them into two hands to play separately at the same bet level.
  • Insurance: If the dealer’s upcard is an ace, you may be offered the insurance side bet before proceeding.
If you choose to stick on a hand that is 21 points or less, the dealer will then play based on the dealer play rules for the particular title you are playing. Standard dealer play rules include:
  • Dealer must hit on 16 or less
  • Dealer must stand on 17 or more
  • Dealer must hit on soft 17 (which includes an Ace)
Once the dealer has played, the hands are compared, and payouts are issued accordingly.

Online Blackjack Payouts

Payouts for the main game in blackjack are straightforward. If your hand goes over 21 points on your play, you bust out and lose the round. If your hand beats the dealer’s, you will be paid out as follows:
Hand Payout
Any winning hand 1:1
Blackjack (10-value card + Ace) 3:2
Insurance 2:1

Side Bets

Side bets are played independently of the main blackjack game and often involve the initial round of cards dealt. They are higher risk than the main game, but offer boosted win potential if your bet comes in. Some typical online blackjack side bets include:
  • Perfect Pairs: This side bet involves the first two cards you receive. You will receive payouts for the following pairs:
    • Mixed pair: same rank, any suit
    • Coloured pair: same rank, same colour
    • Perfect pair: same rank, same suit
  • 21+3: This side bet involves the first two cards you receive plus the dealer’s upcard. You receive a payout for creating poker-style hands as follows:
    • Flush: three cards of the same suit
    • Straight: sequential order, any suit
    • Three of a kind: same rank, any suit
    • Straight flush: three sequential cards of the same suit
  • Lucky Ladies: A bet that your first two cards dealt will equal 20 points, with special payouts for hands involving Queens.
  • Insurance: This is offered when the dealer’s upcard is an ace. You can take out an insurance bet that the dealer is holding blackjack for a payout of 2:1.

Simple Blackjack Strategy: Using The Blackjack Betting Chart

Although like other casino games, blackjack is a game of chance, a certain amount of skill and knowledge of the game is required. Some plays give yourself the best chances of winning the round based on what’s in your and the dealer’s hands. You can find blackjack strategy charts that show the best plays statistically in each possible hand combination, which is summarised in the table below:
Action Soft Totals Hard Totals
🎯 Hit Hit on A2–A6 Hit on 8 or less, or hit on 12–16 if the dealer shows 7–Ace
✋ Stand Stand on A7 if dealer shows 2, 7, or 8. Always stand on A8 or A9 Always stand on 17+ and stand on 13–16 when the dealer shows 2–6
💰 Double Down A2–A3 vs dealer 5–6
A4–A5 vs dealer 4–6
A6 vs dealer 3–6
A7 vs dealer 3–6
9 vs dealer 3–6
10 vs dealer 2–9
11 vs dealer 2–10
🖖 Split Always split Aces and 8s
Never split 5s or 10s
Split 2s, 3s, and 7s if the dealer shows 2–7

Advanced Blackjack Betting Strategies

Some players like to use more advanced betting strategies when playing blackjack, such as the Martingale System or the Fibonacci System. These strategies require a larger starting balance and won’t be suitable for all types of players.

Martingale System

The Martingale is a fairly aggressive betting strategy that requires you to double your bet after every losing hand. The premise being that you will recoup all previous losses when you hit a winning hand, plus profit from your initial bet. This system requires a large starting balance to cover a series of losing streaks.

D’Alembert System

D’Almbert is a more conservative progressive betting system that involves setting a fixed bet unit value in advance and increasing your bet by one unit following a loss and decreasing by one unit following a win. The idea behind this strategy is that your wins and losses will eventually even out, making it a less risky strategy than doubling your bet after each loss.

Fibonacci System

The Fibonacci System uses the famous Fibonacci sequence of numbers, where each number is the sum of the previous two: 1, 1, 2, 3, 5, 8, 13, 21… To follow the Fibonacci System, start with your base bet at the first number in the sequence. After each loss, increase your bet to the next number in the sequence, and after each win, move two steps backwards in the sequence. Like the previous examples, this strategy is designed to recover losses with increased bet sizes, but at a more gradual pace for more conservative play.

Step by Step: How to Play Online Blackjack at JeffBet IE

Follow these simple steps to sign up for a new JeffBet account and start playing online blackjack today:
  1. Click PLAY NOW to open the registration page.
  2. Enter your email address, phone number, and choose a password.
  3. Complete your personal details for ID verification.
  4. Activate your account with the four-digit activation code.
  5. Hit the cashier and deposit €10 or more to claim your welcome bonus(terms and conditions apply) and start playing.

Blackjack games available at JeffBet

Blackjack comes in many forms, and we have over 50 different games for you to explore in the JeffBet lobby, including RNG-based video games and live-streamed real dealer titles. Our catalogue includes themed games, special side bets, high-stakes tables, and plenty of other choices to suit all types of players, including award-winning titles from Play’n GO, Evolution Gaming, and Playtech.

RNG-Driven Video Blackjack

RNG-driven online table games use random number generators to determine game outcomes in the same way that online slots do. This is used to ensure fair play with video titles or pre-recorded games. Popular RNG-based blackjack titles at JeffBet included the following:
  • European Multi-Hand Blackjack from Switch Studios
  • Blackjack Classic from Iron Dog Studios
  • Switch Studios’ Perfect Strategy Blackjack
  • Blackjack Multi-Hand from Play’n GO
  • Iron Dog Studio’s 3D Blackjack

Live Dealer Blackjack

Live dealer blackjack games use physical decks of cards and real-life croupiers to deal out your cards. The video is live-streamed from purpose-built live casino studios so you can watch the game unfold as it happens. Live casino games offer a more social experience as you can interact with other players and your game host as you play. Try these popular titles:
  • Infinite Bet Stacker Blackjack from Evolution
  • Playtech’s Mega Fire Blaze Blackjack Live
  • Quantum Blackjack Plus from Playtech
  • Fun Fun 21 Blackjack from Evolution
  • Royale Blackjack from Playtech
  • Evolution’s Easy Blackjack

Safer Gambling at JeffBet

At JeffBet, we’re committed to safer gambling and provide various tools designed to help you gamble responsibly while using our platform. Our Bet Smart Hub offers detailed information on safer gambling practices, guidance on using our safer gambling tools, and links to additional resources and independent bodies that support problem gambling prevention. You can use the tools on our platform to set yourself spending and loss limits before you start playing, set reminders to take breaks from play, and even block yourself from your account if you need an extended break from gambling.

Online Blackjack FAQs

You can play a range of different online blackjack games right here at JeffBet IE, from RNG-driven video titles to live-streamed real-dealer games and more.
A side bet in blackjack is a bet that you can place independently of the main blackjack hand. Usually, they involve only the first round of cards dealt, and many are resolved before the game round concludes.
Yes, like online slots and other online casino games, blackjack games are independently audited by industry bodies to ensure fair play and random game outcomes in keeping with gaming licenses.
Live online blackjack is a type of online casino table game played with a real-life game host dealing the cards. The game is filmed and live-streamed to your device so you can watch the cards in real time.
There are various blackjack strategies that you can employ to improve your chances of winning, as blackjack is a game of chance and skill. Read our summary of standard and advanced blackjack strategies above.