How to Reduce the House Edge at Online Casinos
- Feb 13, 2025
- 4 min read

What Is The House Edge In Casinos?
The house edge in gambling is not a myth, but it’s something that players don’t always know about or understand fully. It’s a mathematical advantage that always favours the casino, indicating how much it would expect to keep on average, as explained by the Gambling Commission UK.
To put it simply, if a game has a 5% house edge, it means that for every £100 wagered by players over time, the casino expects to keep around £5. The remaining £95 goes back to players as winnings.
That doesn't mean you'll lose exactly £5 every session, but over thousands of bets, the maths tends to balance out in the casino's favour. That's why reducing this advantage wherever you can is a smart move.
However, lowering the house edge does not mean you will “beat the casino”. Instead, it means understanding which decisions actually matter and avoiding the ones that quietly increase the casino’s advantage.
If you approach online casinos with that mindset, you immediately put yourself in a better position.
Game selection is the most important factor
Nothing affects the house edge more than the type of game you are playing. Some games involve choice and skill, while others are purely random, with higher margins for the casino.
● Blackjack is perhaps the best-known game that has a low house edge. When played with an optimal strategy, the casino’s advantage can be well under 1%.
● European roulette is another solid option, especially compared to American roulette, which adds an extra zero and therefore increases the odds against the player.
● Baccarat is another game worth considering. It's straightforward to play and the banker bet comes with a slight operator advantage of just 1.06%, making it one of the lowest in any casino.
● Slots are on the opposite end of the spectrum. They are visually attractive and easy to play, but they also tend to have a much higher house edge - usually around 5% for online slots.
Overall, you should focus on table games with clear rules and known probabilities. Avoid side bets, bonus wheels, and novelty features that usually carry inflated margins.
Use optimal strategy - Not instinct
You have selected a good game, now what? How you play it is equally important.
For games like Blackjack, the difference between strategy and instinctive play is substantial. Basic strategy charts are the result of probability calculations based on millions of simulated hands.
Consistently following them reduces mistakes that increase the house edge. Knowing when to hit, stand, double, or split is not based on intuition or feeling lucky. It’s about choosing the option that fits best with the probabilities.
Take a soft 17 as an example. Many players instinctively stand because it feels like a reasonable total. But as explained by expert Henry Tamburin via 888 Casino, you should never stand on soft 17.
The ace gives you flexibility because it can count as 1 or 11, so you can't bust on the next card. Standing on 17 against a strong dealer hand is a losing position more often than not, and hitting gives you a better chance of improving your final total.
Other games have their own strategic considerations too. With baccarat, the decision is simpler but still matters. The banker bet carries a house edge of just 1.06%, while the tie bet jumps to over 14%.
There's no complex chart to memorise, but knowing which bet to place and which to avoid is still the difference between playing smart and handing the casino a bigger advantage than necessary.
One advantage of playing online is that there's no pressure to act quickly. In a physical casino, the pace of the table and other players can push you into rushed decisions. Online, you can take your time, check a strategy chart, and make the statistically correct call without anyone watching over your shoulder.
Choose bonuses with favourable terms
While not reducing the house edge when playing games, certain bonuses can give you extra bankroll to play with. However, traditional offers often require players to meet wagering requirements, meaning they must bet multiple times before they can withdraw any money.
The trick is to choose offers with favourable terms that give you a chance to win cash straight away. These are known as no wagering offers, and they have become more popular among experienced players.
That’s because these promotions allow any winnings to be withdrawn as cash immediately, without additional play-through conditions.
Despite the clear attraction of these terms, there’s no shortage of options for you. The site No Wagering Casinos UK is the leading expert on no wagering casinos in the UK. According to their experienced team, there are now more British casinos offering these types of bonuses than ever before, giving players more choice and flexibility than in the past.
It's worth noting that no wagering bonuses are usually offered as free spins, which means you'll typically be playing slots. As we've covered, slots do carry a higher advantage for the casino than table games. But the important thing to remember is that these spins come from the casino's pocket, not yours.
You're not risking any additional money, so they're essentially extra chances to win something on top of what you've already deposited.
Accept that the house edge always exists
However, it’s very important to remember that no strategy, bonus, or game selection completely removes the house edge. It is always present, and pretending otherwise can lead to poor decisions being made.
Instead, accepting that reality will put casino games in perspective. For all players, casino games should be played purely for fun and entertainment, not as a way to make money. Set limits, manage your bankroll, and stop playing immediately if it stops being enjoyable.
When you accept this, you help to avoid risks






