Start with the number that is not on the banner
A monthly bonus looks like a single figure: a headline credit, a percentage match, a batch of free bets. The calculation that decides whether the promotion is worth taking sits in the terms, and it is built from four moving parts. Wagering requirements set how much you must stake before bonus-related funds can be withdrawn. Game weighting changes how much each of those stakes counts. A maximum-cashout cap limits how much of the result can ever leave the account. And an expiry window sets the clock running on all of it.
None of these parts is fixed across operators. One sportsbook app may attach a modest playthrough to a bonus with a low cap; another may advertise a larger credit that is effectively unreachable because of the weighting table. The skill is not in memorising a single formula. It is in knowing which four numbers to pull out of the terms and how to combine them.
What the wagering requirement multiplies
A wagering requirement, sometimes called playthrough, is a multiplier. It states how much must be wagered before bonus-related funds can be withdrawn. The base it multiplies varies by promotion. Some requirements apply to the bonus amount alone. Others apply to the bonus plus the deposit that triggered it. A third structure applies the multiplier to winnings from free spins rather than to the spins' face value.
The arithmetic is straightforward once you know the base. Suppose a promotion grants a 50-unit bonus with a 30x requirement attached to the bonus only. The total wagering obligation is 1,500 units. If the same 30x applied to a 50-unit bonus plus a 50-unit deposit, the obligation doubles to 3,000 units. The multiplier is only half the information; the base is the other half, and the terms page must state which base applies.
What the requirement does not tell you is how much of your own money will be consumed while you satisfy it. That depends on the games you play and their expected loss rate. A requirement is a volume of turnover, not a cost, and treating it as a cost is the most common misreading in promotional arithmetic.
Game weighting: not all turnover counts equally
Most sportsbook and casino promotions attach a weighting table to the wagering requirement. A stake on one product may count in full toward the playthrough, while a stake on another counts as a fraction, and some products count for nothing. The weighting exists because different games carry different expected loss rates, and the operator calibrates the promotion so that the turnover obligation is not met too cheaply on a low-edge product.
Read the weighting table before you place a single qualifying bet. A requirement that looks modest at full weighting becomes far larger if the product you intended to play counts at a reduced rate. The calculation is simple: divide the total wagering obligation by the weighting percentage for your chosen product to find the actual stake volume you must generate. If the table excludes your preferred product entirely, every stake on it is wasted for promotional purposes.
| Element | What it states | Where it appears |
|---|---|---|
| Wagering multiplier | How many times the base must be staked | Promotion terms, usually near the top |
| Base of the multiplier | Bonus only, bonus plus deposit, or winnings only | Same terms section, often in a definition |
| Game weighting | What fraction of each stake counts per product | Weighting table or contribution list |
| Maximum cashout | The ceiling on withdrawable winnings from the bonus | Terms, under withdrawal or cashout rules |
| Expiry window | How long the requirement and the bonus funds remain valid | Terms, under validity or expiry |
The cap that decides whether any of it is real
A maximum-cashout cap is the ceiling on how much of the bonus-derived balance can be withdrawn. It applies after the wagering requirement is met, and it can be far lower than the headline bonus suggests. A promotion may grant a large credit and a generous-looking multiplier, but if the cap is set at a small multiple of the bonus, the realistic ceiling on value is that cap, not the credit.
To evaluate a promotion, work backwards from the cap. Ask what the maximum withdrawable outcome is, then subtract your expected cost of generating the required turnover. If the cap is below the expected cost for the products you would play, the promotion has negative expected value for you even if you complete every term perfectly. This is not a trick or a trap; it is simply the arithmetic of a promotion designed around an operator's margin.
No-deposit bonuses and free spins almost always carry caps, because the operator is extending credit without a deposit to offset it. Read the cap as the true headline number, and treat the advertised credit as the raw material from which the cap is carved.
Expiry: the clock is part of the cost
Every bonus carries an expiry window, and it applies to different things at different stages. The bonus funds themselves may expire if not used. The wagering requirement may have its own deadline, after which unfulfilled progress and the associated funds are removed. Free spins typically expire fastest of all, sometimes within days of being credited.
Expiry matters because it constrains how you can satisfy the requirement. A large playthrough obligation attached to a short window may force a pace of play that is uncomfortable or unaffordable. A longer window gives you room to spread the turnover across sessions, but it does not change the underlying arithmetic. The expected cost of the turnover is the same whether you generate it in one sitting or twenty; only the pressure changes.
When you compare two promotions, compare their expiry windows alongside their multipliers. A slightly higher requirement with a much longer window may be more workable than a lower requirement that expires in a weekend.
Loyalty and comp value: the quieter calculation
Monthly bonuses are one-off events. Loyalty and comp programmes are the continuous version of the same idea, and they are valued through a different route. The operator tracks your play and converts it into points, tier progress or comp value. The underlying measure is theoretical loss, sometimes called theo: an estimate of what your play is worth to the house over time, not what you lost in any given session.
Theoretical loss is built from three inputs. The first is your average bet size. The second is the number of decisions or bets you make per hour, which varies by game speed and by how you play. The third is the house edge on the specific bets you are making. As labelled example arithmetic: suppose a player averages 10 units per bet, makes 60 bets per hour, and plays a game with a house edge of 1%. The theoretical loss per hour is 10 multiplied by 60 multiplied by 0.01, which is 6 units. That is an estimate of the long-run average cost of an hour of that play, not a prediction of any single hour.
The comp value returned to the player is normally a small fraction of that theoretical loss. The fraction is set by the operator and is not published as a simple percentage in most programmes. What you can observe is the earning rate: how many points a given stake produces, and what those points redeem for. Divide the redemption value by the stake required to earn it, and you have a rough return rate for the programme. It will always be a fraction of the house edge, because the operator funds the programme from its margin.
Putting the two calculations side by side
A monthly bonus and a loyalty programme are both promotional value, but they are calculated from opposite directions. The bonus starts from a fixed credit and is reduced by requirements, weighting, caps and expiry until the withdrawable remainder is known. The loyalty programme starts from your tracked play and pays back a fraction of the theoretical loss that play generates. One is a discrete event with a terms page; the other is a continuous accrual with an earning table.
| Feature | Monthly bonus | Loyalty or comp programme |
|---|---|---|
| Source of value | Promotional credit granted up front | Fraction of tracked theoretical loss returned over time |
| Main constraint | Wagering requirement and game weighting | Earning rate per unit staked and redemption table |
| Ceiling on value | Maximum-cashout cap | Tier or redemption limits set by the programme |
| Time pressure | Expiry window on funds and requirement | Points may expire or reset on a schedule |
| How to evaluate | Work backwards from the cap, subtract expected turnover cost | Divide redemption value by stake required to earn it |
What you can control, and what you cannot
The terms of a promotion are fixed before you opt in. You cannot change the multiplier, the weighting table, the cap or the expiry. What you can change is whether you opt in at all, which products you use to satisfy the requirement, and the pace at which you play. Those choices do not alter the operator's edge on any individual bet. They alter how much of the promotional value survives contact with the terms.
The honest way to read any monthly bonus is as a conditional discount on the expected cost of play. It reduces the rate at which you lose over a defined volume of turnover, provided you complete the terms and the cap does not erase the benefit. It does not create a positive expectation on a negative-expectation product. No wagering pattern, bet sizing scheme or game selection changes the built-in edge of the underlying bets. What changes is how much of the promotional credit remains after the conditions are satisfied.
If the calculation shows the cap is below your expected cost, or the expiry forces a pace you would not otherwise choose, the rational move is to decline the promotion. There will be another one next month, and it will carry its own four numbers to read.
FAQ
How do I find the exact wagering requirement for my monthly bonus?
Open the promotion's terms and conditions from the offer page or the bonus section of your account. The requirement is stated as a multiplier, and the same section must name the base it multiplies. If the base is not explicit, contact support before opting in, because the difference between bonus-only and bonus-plus-deposit doubles the obligation.
Does game weighting mean some bets do not count at all?
Yes. Most weighting tables assign a contribution percentage to each product, and some products are listed as excluded entirely. A stake on an excluded product contributes nothing to the playthrough, and on some promotions it can void the bonus if placed before the requirement is met. Read the table before your first qualifying bet.
Is a loyalty programme worth more than a monthly bonus?
There is no universal answer. A loyalty programme pays a fraction of theoretical loss and accrues slowly, while a bonus is a fixed credit reduced by its terms. Calculate the loyalty return as redemption value divided by the stake required to earn it, then compare that rate against the net value of the bonus after requirements, weighting and the cap. The better option is whichever leaves more value after its own conditions.
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