A wagering requirement is an important indicator that sets how much money you must wager to withdraw your casino bonus. It's also called a turnover, playthrough, or rollover requirement.
This guide explains how it works, how to calculate the amount you need to wager and our tips. If you're new to online casinos or want to brush up on your knowledge, this is your guide.
For example, if a player receives a £20 casino bonus that comes with a 10x wagering requirement, it means they must place a total of £200 in bets (£20 multiplied by 10) on eligible games before the bonus funds and any winnings are converted into real, withdrawable cash. Until this condition is met, any winnings are typically held in a separate "pending balance" which cannot be withdrawn.
One of the most significant sources of player confusion stems from the 2 different ways a wagering requirement can be calculated. The method used dramatically changes the total amount a player must play, and understanding the difference is the first critical step in evaluating any bonus offer.
Bonus Amount Only
Bonus plus Deposit Amount
This is the more straightforward and player-friendly calculation. The wagering multiplier is applied only to the bonus funds received.
For example, if you deposit £50 for a 100% deposit bonus of up to £100, you get £50 in your cash balance and £50 in your bonus balance. Let's say the wagering requirement of this offer is 30 times, and the calculation goes as follows:
It is simple, isn't it? In this case, you need to wager £1500 with, typically speaking, your bonus balance. It's good to note that you don't have to stake the full amount at once. Some casinos, like Videoslots and Mr Vegas, have a slightly different system.
This method is significantly less favourable for the player as it can effectively double the total wagering amount. Here, the multiplier is applied to the combined sum of the player's own deposit and the bonus funds.
For instance, in the same scenario as above, you deposit £50 and get £50 in both cash and bonus. The turnover requirement is 30 times. The calculation is:
As a result, your total wager required is twice as high as the other type.
One study found that while a significant 7 in 10 people could not correctly calculate a "bonus only" requirement, this figure rose to an alarming 9 in 10 for "bonus plus deposit" offers, with most participants drastically underestimating the required spend.
To beat wagering requirements, you must accurately assess the true value of a casino bonus. Look deeper into the terms and conditions. Factors like game weighting, time limits, and withdrawal caps can have a far greater impact on a player's ability to successfully clear a bonus and withdraw their winnings.
Wagers on most online slots almost always contribute 100% towards the requirement. This is because slots generally have a higher house edge, making them more profitable for the operator over the long term.
On the other hand, table games, including live casinos, typically contribute much less, often between 5% and 20%, and are sometimes excluded entirely (0% contribution). This is due to their lower house edge and the fact that strategic play can reduce player losses, making it easier to meet wagering requirements if contributions were higher.
The concept of game weighting means that the advertised wagering requirement is not the same for every player. The "true" or "effective" requirement depends entirely on the games a player chooses to play. A simple formula can reveal the actual amount of money that needs to be staked.
For example, let's say your total wager required is £5000 (= Initial Wager Required). If you choose to play a slot that contributes 100%, your potential wager remains the same. However, if you want to play Baccarat, whose contribution is 10%, your potential wager becomes:
See? This makes a big difference in how much you will have to roll over in the end.
Volatility shows how frequently you hit valid paylines and how big the average size of a win is. You will encounter many dead spins on highly volatile slots, but they have the potential of an exposive win in a relatively short span of game rounds. On the other hand, low volatility slots pay out often, but you will not expect to hit a jackpot-like win quickly.
While they can be a source of frustration for players, wagering requirements serve several key functions from the casino's perspective.
The primary purpose is to protect the casino from financial loss. Without these rules, individuals could simply sign up, claim a bonus, and withdraw the money immediately for a guaranteed profit. This practice, known as "bonus hunting," would make offering promotions financially unsustainable for operators.
By requiring players to engage with the games, the casino ensures that the bonus is used for its intended purpose. That is to provide extended playtime and an opportunity for the player to experience the platform. This gives the operator a chance to retain the individual as a long term customer.
Wagering requirements also serve a secondary function in security and compliance. By preventing the immediate deposit and withdrawal of funds, they make it more difficult for individuals to use casino platforms for activities such as money laundering.
In a move to create a safer and more transparent gambling environment, the UK Gambling Commission has announced significant reforms that will fundamentally reshape casino bonuses. These new rules, which come into force on 19 January 2026, target the most confusing and potentially harmful aspects of promotional offers.
The centrepiece of the new regulations is a strict cap on the size of wagering requirements.
From 19 January 2026, all UK licensed operators will be prohibited from applying a wagering requirement of more than 10 times ($10x$) the bonus amount.
This represents a monumental shift away from previous industry norms, where wagering requirements of 30x, 50x, or even higher were commonplace. The UKGC highlights the impact with a clear example: a £10 bonus with a 50x requirement forced a player to bet £500. Under the new cap, the same bonus will require a maximum of £100 in wagers.
The regulator's stated goal is to reduce the potential for gambling related harm. High wagering requirements were seen as a factor that could confuse consumers and encourage them to gamble for longer periods or at a faster pace than they otherwise would have.

Yusaku is an editor at Casinolyze. He has worked in the online casino industry in various roles, including customer support, marketing, and management, for over five years. Drawing on his knowledge of casino operations and industry insights, he is passionate about providing honest reviews and helpful guides for readers. Feel free to send him a message regarding any editorial matters.