Bonuses are the loudest thing on any casino homepage, and the place new players lose value most often. Understanding the fine print turns a bonus from a trap into a tool. Here is everything that actually matters.
What is a casino bonus?
A casino bonus is an incentive an operator offers to attract or reward players — extra money added to your balance, a batch of free spins, or cash back on losses. None of it is truly free: every bonus comes with conditions that determine whether you can ever withdraw what it produces. The value of a bonus lives entirely in those conditions, not in the big number on the banner.
The main types of casino bonus
Most offers fall into a handful of categories. A welcome or match bonus matches a percentage of your first deposit — a 100% match up to a set amount is common. Free spins give you a number of spins on selected slots, with any winnings usually subject to wagering. A no-deposit bonus is a small amount of bonus cash or spins just for signing up, attractive but carrying the strictest terms. Reload bonuses reward later deposits, cashback returns a percentage of net losses over a period, and loyalty or VIP rewards build up the more you play. Each type has a different risk and value profile, so read them on their own terms.
Wagering requirements: the number that matters most
The wagering requirement, sometimes called the playthrough, is the single most important figure attached to any bonus. Shown as a multiple such as 35x or 40x, it is how many times you must bet the bonus — or, less generously, the bonus plus your deposit — before the winnings become withdrawable. A worked example makes it clear: claim a 100 unit bonus at 35x wagering and you must place 3,500 units of bets before you can cash out anything from it. At 40x on bonus-plus-deposit, the figure climbs higher still. A smaller bonus at 20x is often worth more in practice than a huge bonus at 45x, because you are far more likely to actually clear it.
Game weighting: not every bet counts the same
Casinos rarely let every game contribute equally to wagering. Slots usually count 100%, so every unit you stake on them clears a full unit of the requirement. Table games such as blackjack and roulette often count only 10% to 20%, or are excluded entirely, because they have a lower house edge. This game weighting is buried in the terms and catches players out constantly — if you clear a slots bonus by playing roulette, you may barely dent the requirement. Always check the weighting table before you start.
Max bet, max cashout and expiry
Three more limits shape a bonus. The maximum bet caps how much you can stake per spin or hand while a bonus is active — breach it, even accidentally, and you can void the entire bonus and its winnings. The maximum cashout limits how much you can withdraw from a bonus, most common on no-deposit offers, so a big win can be capped to a small payout. The expiry is how long you have to meet the wagering; a short window on a high requirement is a warning sign that the bonus is designed to be difficult to clear.
Sticky versus non-sticky bonuses
A non-sticky bonus keeps your deposit and bonus separate, letting you play with your own money first and withdraw it freely — the fairer structure. A sticky bonus merges the two, so the bonus amount cannot be withdrawn and is removed once you cash out, only its winnings remaining. Knowing which type you have accepted changes how you should play it.
How to tell if a bonus is worth claiming
Run every offer through the same quick test. Is the wagering 35x or lower? Does it apply to the bonus only, not bonus plus deposit? Do the games you actually play count fully toward it? Is the expiry realistic, at least a week or two? Is there no punishingly low max cashout? A bonus that passes all five is worth taking; one that fails two or more is usually there to look generous rather than be generous. Sometimes the smartest move is to decline the bonus entirely and play with your own funds, free of any playthrough. Our guide to value betting explains the same principle of reading past the headline number.
Bonus red flags to avoid
Walk away from offers with wagering above 50x, terms that are hard to find or contradict each other, max-bet rules hidden deep in the small print, or a very low maximum cashout attached to a large-sounding bonus. A fair casino states all of this plainly on the promotion page. If it does not, that tells you how it treats its players — and there is a safe way to check any operator first in our guide on how to choose a safe online casino.
Frequently asked questions
What does 35x wagering mean?
You must place bets totalling 35 times the bonus amount before you can withdraw any winnings from it. On a 100 unit bonus that is 3,500 units of wagering. Always check whether the multiple applies to the bonus only or the bonus plus your deposit.
Are casino bonuses worth it?
They can be, if the wagering is reasonable (35x or lower), the games you play count fully, and the expiry is realistic. A large bonus with harsh terms is often worth less than a small one with fair terms — or than simply playing with your own money.
Why did my bonus disappear?
The most common causes are exceeding the maximum bet while the bonus was active, letting it expire before meeting the wagering, or playing games that were excluded or weighted low. Reading the terms first prevents all three.
What is the best type of casino bonus?
A non-sticky welcome bonus with low wagering, full slot weighting and a generous expiry is generally the most player-friendly. No-deposit bonuses look appealing but usually carry the strictest terms and lowest cashout caps.
Written and fact-checked by the Sport Predictions editorial team. Last updated August 2026. Informational only, not financial advice. For adults 18+ — please play responsibly. When the fun stops, stop. See our responsible gambling resources for support.