Card counting is a strategy that has been closely associated with blackjack for decades, offering skilled players the ability to shift the odds in their favor. The technique involves tracking the ratio of high cards to low cards remaining in the deck, which helps players make more informed betting decisions. However, as technology and casino practices have evolved, many wonder if card counting is still a viable strategy in 2025. Here, we’ll explore the current state of card counting and whether it’s still possible to use it to your advantage in today’s casino environment.

1. Technological Advancements in Casinos

Casinos have become increasingly sophisticated in their efforts to detect card counters. Surveillance systems are more advanced than ever, with high-definition cameras and facial recognition software making it easier to track players’ actions at the tables. Additionally, some casinos use automatic shuffling machines, which effectively eliminate the opportunity for players to count cards by ensuring that the deck is shuffled after every hand.

Tip:

If you plan to count cards, look for games where manual shuffling is still used and be discreet with your betting patterns. Automated shuffling machines can make it virtually impossible to get an edge.

2. Use of Multiple Decks

One of the ways casinos make card counting more difficult is by using multiple decks in blackjack games. The more decks in play, the harder it is to keep an accurate count. In 2025, many casinos use shoe games, which typically involve six or eight decks. This increases the house edge and makes it more challenging for players to track the ratio of high to low cards.

Tip:

If you’re serious about card counting, try to find single-deck blackjack games, although they are becoming rarer. The fewer the decks, the more effective card counting can be.

3. Casino Countermeasures

Casinos are also employing various countermeasures to detect card counters, such as:

• Betting patterns: Casinos watch for irregular betting behavior, like large bets after a positive count.

• Shuffle tracking: Some casinos keep track of shuffle patterns to disrupt counters.

• Dealer training: Dealers are now trained to spot card counters, including changes in players’ betting patterns and body language.

Tip:

If you do decide to count cards, make your betting consistent and avoid drawing attention by varying your bets too drastically. Subtlety is key.

4. Legal and Ethical Considerations

It’s important to note that while card counting is not illegal, casinos reserve the right to refuse service to anyone they suspect of counting cards. This could result in being asked to leave or even banned from the casino. In 2025, many casinos have a zero-tolerance policy for card counters and may use legal means to enforce their rules. For example, they may involve security or issue a ban based on their surveillance data.

Tip:

Always be aware of the risks involved with card counting. While it is legal, it can result in getting banned from casinos if you’re caught.

5. Online Casinos and Card Counting

In the age of online gaming, players may wonder if card counting works in virtual blackjack games. Most online casinos use RNG (random number generator) software to deal cards, meaning the outcome is completely random and not influenced by previous hands. As such, traditional card counting has no relevance in online blackjack. However, some online casinos offer live dealer blackjack, where human dealers manage the game in real time. In these instances, if the casino uses a single deck and does not shuffle between rounds, card counting could potentially work.

Tip:

While online casinos make card counting obsolete in most cases, live dealer games may offer a chance for counters if they use fewer decks and shuffle infrequently. Always check the game’s structure before trying to apply any counting strategy.

6. Is Card Counting Still Worth It?

In 2025, while card counting is still theoretically possible, its practical effectiveness has diminished due to technological advancements, casino countermeasures, and increased surveillance. For most players, card counting is no longer the surefire method it once was to gain an advantage. The risks of being caught and banned are higher than ever, and the rewards are not as plentiful due to modern casino strategies.

However, some advanced counters still manage to succeed by staying under the radar, choosing the right games, and practicing disciplined strategies. For the average player, though, focusing on mastering basic strategy will often yield better results without the added risk.