Two balances that look identical but are not
When a casino adds promotional funds to an account, the cashier screen often shows one combined figure. That single number hides a split that decides whether any of the money can ever leave the account. One part is withdrawable cash: deposit money, or winnings generated from it. The other part is bonus cash: a credit that exists for play, but not for withdrawal, until a set of conditions is met.
The practical question behind “how does bonus cash work” is rarely about the credit itself. It is about the conditions attached to it. A promotional balance is best read as a structured offer with four moving parts, and each part changes what the balance is worth.
The wagering requirement is a multiplier, not a target
A wagering requirement, sometimes called playthrough, states how much must be wagered before bonus-related funds can be withdrawn. It is expressed as a multiplier of the bonus amount, and occasionally of the bonus plus the deposit that triggered it.
The arithmetic is simple, but the framing matters. If a 30x requirement is attached to a 50-unit bonus, then 1,500 units must be wagered. That is not a target the player is trying to reach for profit; it is a volume of turnover the operator requires before the bonus stops being locked. During that turnover, the house edge on every spin or hand continues to apply. A player who wagers 1,500 units does not expect to finish with 1,500 units. The expected result is 1,500 units minus the accumulated edge of the games played.
This is why a wagering requirement cannot be evaluated without knowing which games count toward it, and at what rate.
Game weighting decides how fast playthrough moves
Not every wager contributes equally to a wagering requirement. Operators assign weighting percentages to different game categories, and these percentages are printed in the promotion's terms. A slot spin might count at full value, while a table game wager might count at a fraction, or not at all.
The effect is larger than it first appears. A player who wagers 1,000 units on a game weighted at 100% has contributed 1,000 units toward the requirement. The same 1,000 units on a game weighted at 10% contributes only 100 units. The requirement has not changed; the effective amount that must be risked has multiplied by ten.
Weighting exists because different games carry different house edges and different rates of play. A low-edge game played slowly produces less expected loss per unit of turnover than a high-edge game played quickly. Weighting is the operator's way of equalising the cost of the promotion across game types. From the player's side, it means the cheapest route through a requirement is not always the obvious one.
| Factor | What it changes | Where it is stated |
|---|---|---|
| Wagering multiplier | Total turnover required before withdrawal | Promotion terms |
| Game weighting | How much each wager counts toward that turnover | Promotion terms, per game category |
| Maximum cashout cap | The ceiling on what can be withdrawn from bonus winnings | Promotion terms |
| Expiry window | How long the player has to complete the requirement | Promotion terms |
The cap that most players discover too late
A maximum-cashout cap sets an upper limit on how much of the bonus-generated winnings can ever become withdrawable. Even if a player completes the wagering requirement with a balance above the cap, the excess is removed at the point of conversion. The cap is not a penalty applied later; it is a structural limit on the offer.
This is the single most important term to read before opting in, because it changes the value of the offer entirely. A large bonus with a low cap is, in economic terms, a small bonus. The cap, not the headline credit, is the real ceiling.
No-deposit bonuses and free spins almost always carry a cap, and the cap is usually low. That is not a trick. It is the mechanism that keeps a zero-deposit promotion viable for the operator. The player's job is to read the cap before play, not after a win.
Expiry windows turn time into a cost
Every bonus carries a deadline. The expiry window is the period within which the wagering requirement must be completed. If the window closes before the requirement is met, the bonus and any winnings derived from it are typically removed.
An expiry window interacts with game weighting in a way that is easy to miss. A player who chooses low-weighted games to reduce expected loss may not be able to complete the requirement within the window at their usual pace. The window forces a trade-off between the cost of play and the speed of play. A short window pushes players toward higher-weighted games, which usually means higher house edge, which means higher expected loss per unit wagered.
The window is stated in the promotion terms. The player's own session length and frequency decide whether the window is realistic. Both numbers matter, and only one of them is under the player's control.
Free spins and no-deposit credit follow the same structure
Free spins are granted at a fixed stake on specified slot titles. The winnings from those spins are commonly credited as bonus funds, not as withdrawable cash, which means they inherit a wagering requirement before they can be withdrawn. A no-deposit bonus works the same way: the credit is real for play, locked for withdrawal, and subject to the same four terms.
The difference between these and a deposit-match bonus is not the structure. It is the absence of the player's own money. That absence does not make the offer risk-free; it makes the cap and the requirement the entire economics of the offer. A player who would not accept a deposit-match with a given cap and requirement should apply the same standard to a no-deposit credit, because the same arithmetic applies to the winnings.
Loyalty and comp value is built from tracked play, not from generosity
Loyalty programmes and comps look different from bonus cash, but they are built from the same material: the expected loss generated by tracked play. The concept that underpins them is theoretical loss, sometimes called theo.
The calculation is a product of three inputs: average bet size, decisions per hour, and the house edge of the game being played. As an example, suppose a player averages 5 units per hand, plays 60 hands per hour, and the game carries a 2% house edge. The theoretical loss for that hour is 5 times 60 times 0.02, or 6 units. That is not a guarantee of what the player will lose in any given hour; it is the long-run average around which actual results will vary.
Operators use this figure, not actual results, to decide what a player is worth to them. A comp, a tier point, or a loyalty credit is a fraction of that theoretical loss returned in a non-cash form. The player who chases a comp is, in effect, spending expected loss to earn a partial rebate. That is not a reason to avoid loyalty programmes; it is the reason to read them as a discount on the cost of play, never as a profit source.
| Promotional form | What it is | What decides its real value |
|---|---|---|
| Bonus cash | Credit locked behind a wagering requirement | Multiplier, weighting, cap, expiry |
| Free spins | Fixed-stake spins on specified slots | Stake size, eligible titles, requirement on winnings |
| No-deposit bonus | Credit granted without a deposit | Cap and requirement, since no player funds offset them |
| Loyalty comps | Partial return of expected loss | Theoretical loss from tracked play |
How to evaluate an offer before opting in
The method is the same for every promotional form. Read the terms first, and read them as a set of four numbers: the wagering multiplier, the game weighting, the maximum cashout cap, and the expiry window. Then ask what the offer is worth under the games the player intends to play.
An offer with a high multiplier, low weighting on the player's preferred games, a low cap and a short window is worth less than a smaller offer with better terms. The headline figure is the least informative number in the promotion. The cap and the weighting do the real work.
Where a term is not stated, or is stated unclearly, the correct move is not to guess. The promotion's full terms page, the operator's bonus policy, or the cashier screen at the point of claiming the offer should carry the figure. If it does not, the offer cannot be evaluated, and an offer that cannot be evaluated cannot be compared.
FAQ
Can I withdraw bonus cash immediately?
No. Bonus cash is locked until the wagering requirement attached to it is completed. The requirement is a multiplier stated in the promotion terms, and it applies to the bonus or to the bonus plus deposit, depending on the offer. Until that turnover is met, the bonus and any winnings derived from it remain in the locked balance.
Why did my balance drop after I met the wagering requirement?
The most likely cause is a maximum-cashout cap. The cap sets a ceiling on how much of the bonus-generated winnings can be converted to withdrawable cash. Any amount above the cap is removed at the point of conversion, even if the wagering requirement has been fully met.
Do all games count the same toward the requirement?
No. Game weighting assigns a different contribution rate to each game category. A slot may count at full value while a table game counts at a fraction, or not at all. The weighting is stated in the promotion terms and directly changes how much must be wagered to complete the requirement.
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This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.