RTP vs House Edge: What They Mean and Their Impact

This guide explains how Return to Player (RTP) and house edge work in casino games. During platform testing, RTP information was typically available through the in-game help menu on both desktop and mobile. However, some games required launching the full game interface before the information screen could be accessed.

About the author

Cody has over eight years of experience in studying Canadian gaming regulations and casino mathematics. This guide is based on game provider RTP data, regulatory disclosures, and hands-on experience with limitations noted where independent verification was not available.

How This Guide Was Researched

The RTP percentages and house edge ranges presented in this guide are sourced from:

Game provider documentation accessible through licensed casino platforms
Regulatory disclosures from provincial gaming authorities including iGaming Ontario and BCLC
Published certification reports from independent testing laboratories
Direct observation of game information screens during platform testing conducted between January 2025 and February 2026

Limitations: We cannot independently verify the implementation of the random number generator (RNG) or test mathematical models. Where figures are based on provider claims rather than independent testing and certification, this is noted. RTP may vary by jurisdiction and casino type for the same game title.

What we observed during testing

During platform testing across desktop, iOS, and Android devices, RTP information was usually accessible through in-game help menus. However, some mobile interfaces required launching the full game before the information panel appeared, which may make RTP harder to locate for new users.

Understanding RTP and House Edge

Return to Player (RTP) and house edge are simply two different ways to express the same mathematical relationship in casino games. RTP indicates the percentage return on wagers a game is intended to make over its hypothetical lifetime, whereas house edge is the casino’s percentage share.

For example, a RTP of 96% means that the house edge is 4%, and vice versa. These two numbers add up to 100%.

These are long-term averages over millions of rounds. They do not indicate anything about session outcome probability, win frequency, or how long your bankroll will last.

What these percentages actually measure

RTP and house edge calculations employs mathematical modelling and simulation. For slots, it entails millions of spins, base game payouts, frequency of bonus features, progressive jackpots, and probability of outcomes. For table games, it is based on the rules and payouts of the games and, in the case of skill games like blackjack, the optimal strategy.

Why House Edge Ensures Long-Term Casino Profit

The house edge is a pre-existing mathematical advantage built into casino games. While in individual gambling sessions, the house edge might not be realized, in the aggregate, it ensures that the casino maintains a consistent percentage of all wagers made. This means that while individual results might differ, in aggregate, they tend to conform to expected percentages, thereby enabling casinos to offer gambling games that have random outcomes.

What House Edge Does Not Mean for Individual Players

A 5% house edge does not mean you will lose exactly $5 for every $100 you wager in a single session. It means:

Over millions of bets across all players, the casino will retain approximately 5% of total wagers
The more rounds you play, the more likely your cumulative results will trend toward this theoretical average
Short-term results can vary dramatically due to variance
No betting strategy, pattern recognition, or timing system eliminates or reduces the edge

The house edge applies to each individual wager. Past outcomes are irrelevant to future outcomes in games that utilize a random number generator or physical randomization (dice, cards, wheel).

How RTP Supports Game Comparison

RTP is most commonly used in reference to slot machines, however the principle is used across all games.

Understanding RTP can also help players identify what are often marketed as best payout casinos, although in reality this depends on the specific game RTP configurations rather than the casino itself.

What RTP Tells You

A game with 97% RTP will, over millions of spins across all players, return more of the total wagers than a game with 94% RTP. This makes RTP useful for:

Comparing games within the same category (e.g., video slots vs. video slots)
Understanding which games have lower built-in casino advantage
Understanding how different games structure their mathematical advantage.

What RTP Does Not Tell You

RTP does not indicate:

How frequently you will win
How large individual wins will be
Whether you will profit in any given session
How many spins your bankroll will last
When wins will occur or in what pattern

These factors are determined by volatility (also called variance), which operates independently of RTP and describes how the theoretical return is distributed across individual outcomes.

Key Limitation: RTP represents theoretical long-term average return. Individual players rarely play sufficient volume for personal results to converge to this percentage. Your actual experience will be shaped by variance, not by the RTP figure.

How Volatility Affects Payout Distribution

Volatility refers to how a given RTP is spread out over individual result outcomes. Two games with similar RTPs of 96% can be vastly different to play due to volatility differences.

Low volatility games: Distribute payouts more frequently but in smaller amounts.

High volatility games: Concentrate returns into less frequent, larger payouts, which can lead to longer losing streaks during typical play sessions.

Volatility and RTP are independent variables

Game developers design RTP and volatility separately:

A 98% RTP game can have high volatility by concentrating payouts into rare, large wins
A 94% RTP game can have low volatility by distributing payouts across frequent small wins
RTP indicates long-term theoretical value; volatility indicates playing experience and bankroll risk

Both factors influence how a game behaves in practice and why similar RTP values can produce very different gameplay experiences. While a high RTP does not automatically translate to a more enjoyable experience, it is dependent on the player’s preference for frequent small wins or larger, less frequent wins.

What RTP and House Edge Don’t Tell You

These metrics have significant limitations that affect their practical usefulness for individual players. Understanding what they cannot tell you is as important as understanding what they measure.

Limitations of RTP and house edge

RTP and house edge refer to the long-run mathematical probabilities. However, in a short time frame, results may vary because most people do not play millions of hands or rounds of a game to achieve the results of the theoretical returns.

Common Misconceptions

“A game is due for a win.”

The results of a game using a random number generator are independent of one another. Past results have no bearing on future results.

“Higher RTP means more frequent wins.”

RTP does not equal the frequency of winnings. Volatility does.

“Strategy can remove the house edge.”

Strategy cannot eliminate the house edge in a game of chance, such as slots or roulette. It may reduce the edge in a game of skill, such as blackjack.

“My results will match the RTP if I play long enough.”

Theoretical percentages only come into play with a large sample size. Individual results are more subject to variance.

Comparing House Edge Across Game Types

The range for each house edge varies from one game to another, considering its mathematical characteristics, rules, and in some cases, the skill level. The following figures show the typical range for each house edge on licensed Canadian websites.

Game Type	Typical House Edge Range	Key Variables
Blackjack	0.5% – 2%	Rule variations (number of decks, dealer hit/stand on soft 17, surrender options), player strategy
European Roulette	2.7%	Single-zero wheel; applies to all bet types
Baccarat (Banker)	1.06%	Banker bet with standard 5% commission
Baccarat (Player)	1.24%	Player bet, no commission
Craps (Pass/Don’t Pass)	1.4%	Basic pass line bets; odds bets have 0% house edge but require a pass line bet
Slots	2% – 10%+	Game design, provider, progressive jackpot contribution, casino configuration

Important Notes:

The house edge of Blackjack is based on the use of mathematically optimal basic strategy. Any departure from the optimal strategy will increase the house edge.
The house edge of video poker games ranges from less than 0.5% to more than 5%, depending on the specific version of the game being played.
The house edge of slots may vary depending on the version of the same slot being played. Some slots offer different RTP versions (94%, 96%, 98%, etc.).
The house edge of progressive jackpot slots is higher because the progressive jackpot is funded by the bets of the players.

Sources: Figures derived from game provider documentation, regulatory disclosures from iGaming Ontario and BCLC, and published reports from eCOGRA and iTech Labs. Specific implementations may vary.

Slots with Higher Published RTP

Some slot games are occasionally mentioned when discussing RTP because they have a theoretical payout percentage listed outside the standard 94–96% range. These titles are referenced only as examples of publicly documented RTP figures and are not recommendations.

Game Title	Published RTP	Provider	Notes
Mega Joker	99%	NetEnt	Maximum RTP achieved in Supermeter mode; base game RTP is lower
Blood Suckers	98%	NetEnt	RTP includes bonus game contribution
Starmania	97.87%	NetGen Gaming	Standard configuration; may vary by casino
White Rabbit Megaways	97.72%	Big Time Gaming	Maximum RTP with feature buy option; base game RTP may differ
Medusa Megaways	97.63%	NextGen Gaming	Standard configuration; may vary by casino

Important caveats:

These figures represent maximum or default RTP configurations. Some casinos may offer lower RTP versions of the same games.
High RTP does not indicate win frequency or volatility. Some of these games have high volatility, meaning long losing streaks are common despite the high theoretical return.
RTP includes all game features (base game, bonus rounds, free spins). Your experience in any single session will be shaped by variance, not by the RTP percentage.
Always verify RTP in the game’s help screen rather than relying on external sources, as configurations can vary.

Responsible Gambling Context

While understanding RTP and house edge is useful in comparing games and understanding expectations, it does not change the fundamental mathematics involved. The house edge is still present to ensure that the casino has an advantage over its players.

This information is most useful for:

Comparing games to identify lower house advantage options
Understanding why extended play typically results in net losses
Setting realistic expectations about outcomes
Making informed decisions about entertainment budgeting

It should not be viewed as a strategy for overcoming the mathematical advantage or as justification for increasing wager sizes based on perceived “better odds.”

Factors beyond RTP to consider

Volatility: Does the payout distribution match your bankroll and risk tolerance?
Minimum bets: Can you afford sufficient rounds to experience the game’s variance?
Game features: Do bonus rounds, multipliers, or mechanics appeal to you?
Playing experience: Do you enjoy the game regardless of mathematical advantage?
Budget limits: Have you set loss limits and time limits before playing?

Responsible gambling resources

If gambling is causing financial stress or affecting your well-being, support is available:

ConnexOntario: 1-866-531-2600 (Ontario)
BC Problem Gambling Helpline: 1-888-795-6111 (British Columbia)
Alberta Health Services – Addiction Helpline: 1-866-332-2322 (Alberta)
Jeu: aide et référence: 1-800-461-0140 (Quebec)

Most provincial programs offer self-exclusion tools, counselling services, and self-assessment resources at no cost.

FAQ

RTP and house edge represent the same concept and always sum up to 100%. RTP represents the theoretical percentage of wagers returned to players over time. While the house edge stands for the percentage of the total amount of money kept by the casino.

No. RTP stands for the return percentage of the total amount of money returned to the players. Volatility stands for the frequency of wins. So, it is possible that the RTP of a game could be higher while the frequency of wins is low.

The RTP information can be accessed from the ‘information’ or ‘help’ section in most casino games. This section can be accessed via an ‘i’ or ‘?’ icon.

No. RTP is applied on all bet amounts, regardless of how high or low they are.

Some games are released with multiple RTP configurations that operators can choose when integrating them. The active version is usually shown in the game’s help screen, so the RTP may vary between casinos or jurisdictions.