Casino wagering requirements explained: how to calculate turnover
Bonuses are the most visible part of any casino’s marketing, yet the condition that actually governs them stays hidden in the small print: the wagering requirement. It determines how many times bonus money — and sometimes the deposit too — must be bet before anything can be withdrawn. Players who skip this line end up confused when a “won” balance refuses to cash out, while players who understand it can weigh every promotion in seconds. The maths behind turnover is genuinely simple once someone shows the working, and that is exactly what this guide does, with worked examples for the common bonus shapes and the details that quietly change the real cost.
What a wagering requirement actually is
A wagering requirement, also called a playthrough or rollover, is the multiplier applied to a bonus that states how much money must be staked before the bonus funds and any winnings tied to them become withdrawable cash. It is written as a number of times — 20x, 35x, 50x — and applies to either the bonus amount alone or to the combined deposit and bonus, depending on the operator’s terms.
Until the full turnover is completed, the bonus balance sits in a locked state. Bets are placed and settled normally, but the balance remains non-withdrawable, and attempting to cash out early usually forfeits the bonus and any winnings generated with it. The requirement exists to protect casinos from instant harvesting: without it, a player could deposit, claim a bonus, withdraw immediately and drain the offer.
The multiplier is not arbitrary. Higher numbers mean more real-money staking before the funds unlock, which means more exposure to the house edge along the way. A large headline bonus with a 60x playthrough is frequently worse value than a modest bonus at 20x, which is why the raw amount is the least useful number on any promotional banner.
The core formulas behind the turnover
Everything reduces to one multiplication, but the base it applies to varies. Three shapes cover nearly every offer in circulation, and knowing which one applies is the first step in any calculation.
- Bonus-only wagering: turnover equals the bonus multiplied by the requirement. A $50 bonus at 30x means $1,500 in total bets before withdrawal. This is the player-friendliest structure.
- Deposit plus bonus wagering: turnover equals (deposit + bonus) multiplied by the requirement. A $100 deposit with a $100 bonus at 30x becomes $200 × 30, or $6,000. The same multiplier effectively doubles.
- Deposit-only wagering: turnover equals the deposit multiplied by the requirement, with the bonus released separately or as free spins. Less common, but found on some welcome offers.
The distinction matters enormously. A “35x bonus” and a “35x deposit and bonus” look identical in marketing language, yet the second demands roughly twice the action for the same headline amount. Always locate which figure the multiplier attaches to before judging an offer’s worth.
Worked examples from small to large
Concrete numbers beat abstract rules, so here is how the arithmetic plays out at realistic bet sizes. Each example assumes the requirement applies to the bonus alone unless stated otherwise.
Take a $20 bonus with a 25x requirement. The turnover is 20 × 25, or $500. At $1 per spin, that is 500 spins to clear — a comfortable evening or two of play. If the same $20 bonus carried 45x wagering on deposit plus bonus from a $20 deposit, the base becomes $40 and the turnover $1,800, nearly four times the work for an identical-looking offer.
Now scale up to a typical welcome package: $100 deposit, $100 bonus, 40x on the combined amount. The turnover is $200 × 40, or $8,000. At $2 per spin, that is 4,000 spins; at $0.50, it stretches to 16,000. Spread across weeks of casual play, the target is reachable — compressed into one weekend, it usually is not. Free spins follow the same logic with a twist: a set of 100 spins at $0.10 each generates $10 in stakes, so if the winnings from those spins carry a 40x requirement, the player must bet 40 times whatever those spins produced. A $15 spin-haul at 40x means $600 of turnover before that money frees up.
Game weightings: the hidden multiplier nobody quotes
The stated requirement is only half the story, because not every bet counts fully toward it. Casinos assign each game category a contribution percentage, and only that share of every stake reduces the outstanding turnover. The structure looks roughly like this across most operators.
| Game type | Typical contribution toward wagering | Practical effect on turnover |
|---|---|---|
| Slots | 100% | Every dollar bet counts as a full dollar |
| Scratch cards and keno | 50% – 100% | Progress at roughly half speed in some casinos |
| Live dealer games | 0% – 20% | Almost no progress; often excluded entirely |
| Blackjack and video poker | 0% – 10% | Effectively stalled until other games are played |
| Roulette | 0% – 20% | Frequently restricted or excluded |
| Table games generally | 0% – 10% | Low weight due to player-favourable odds |
The reasoning is straightforward: table games carry far lower house edges than slots, so a player churning blackjack at full credit would complete the turnover with almost no theoretical loss. Restricting their weight keeps the bonus tied to the high-margin games. The practical consequence for players is significant — clearing a $1,000 requirement on slots is entirely different from clearing it on a game contributing 10%, which demands $10,000 of actual staking to deliver the same progress.
Other terms that reshape the real requirement
Beyond the multiplier and the game weightings, several conditions tucked into the terms can quietly inflate the workload or void the bonus altogether. Reviewing these before accepting any offer takes two minutes and prevents the most common frustrations.
- Maximum bet while wagering. Most bonuses cap bets at a fixed amount, commonly $5 or the equivalent. Exceeding the cap, even accidentally, can void the bonus and all winnings earned with it.
- Time limit. Offers typically give 7 to 30 days to complete the turnover; anything left unfinished expires along with the bonus funds.
- Game exclusions. Certain titles — usually high-RTP slots or feature-heavy releases — are banned from bonus play entirely.
- Payment method restrictions. Deposits made with some e-wallets are excluded from eligibility, and the exclusion is rarely advertised outside the terms.
- Withdrawal caps on bonus winnings. Some promotions limit how much of a bonus-generated balance can actually be paid out, converting any surplus into forfeited funds.
- Maximum conversion amount. Similar in effect: once the turnover is complete, only a capped amount transfers from the bonus wallet to the cash wallet.
Reading the full terms once, carefully, is worth more than any review or comparison. Operators differ enough that two offers with identical multipliers can behave in completely different ways once these clauses are accounted for.
Estimating the expected cost of clearing a bonus
The turn of the arithmetic that most players miss: turnover is not pure profit loss, because bets return some value back. What the wagering actually costs is the house edge applied to the total amount staked. Combining that with the requirement produces a realistic expectation of what a bonus is worth.
Consider a $100 bonus at 35x on slots with a 96% RTP. The turnover is $3,500. With every spin returning 96% on average, the expected cost of churning that volume is 4% of $3,500, or $140. On a purely theoretical basis, the expected outcome of clearing that bonus is negative — the house edge on the required staking exceeds the bonus itself. Meanwhile, a $50 bonus at 20x on the same game means $1,000 of turnover, an expected cost of about $40, leaving a healthy expected surplus of roughly $10 in the player’s favour before variance enters the picture.
The comparison explains a well-known industry pattern: smaller bonuses with lighter requirements often carry genuinely positive expected value, while the biggest, loudest packages are frequently the worst deals on the page. Variance means any individual outcome can swing either way, but the expected maths is fixed from the moment the bonus is accepted.
A practical routine for judging any offer
The whole evaluation fits into a short sequence that takes barely five minutes per promotion and turns marketing language into a real cost figure.
- Identify the base of the multiplier. Bonus only, deposit and bonus, or deposit only — this single detail changes the turnover more than anything else.
- Multiply it out in actual currency. Write the real number down; “$100 × 40 = $4,000” is harder to misjudge than “40x.”
- Divide by the intended bet size. This converts the requirement into a spin count you can compare against your usual session length.
- Check game contributions. Confirm that your preferred games count fully; a favourite table game at 5% changes the plan completely.
- Note the deadline and bet cap. Both turn a theoretically achievable target into an impossible one.
- Estimate the expected cost. Multiply the turnover by the house edge of the games you will actually play, and compare that against the bonus value.
Run any two offers through this sequence and they become directly comparable, whatever their headlines claim. The routine also reveals quickly when the honest answer is to skip the bonus entirely and play with cash — a completely legitimate choice that the turnover maths sometimes makes the smartest one.
Turnover as a decision tool
Wagering requirements are not a trap so much as a price tag that most players never bother to read. Once the multiplier’s base is identified and the multiplication is done, every bonus stops being a mystery and becomes a simple trade: a known amount of staking, at a known expected cost, in exchange for bonus funds of a known size. Some trades are worth taking, some are not, and the numbers above make the difference visible. Players who run the calculation before accepting an offer stop funding their play through unmet rollovers — and start choosing only the promotions that genuinely work in their favour.
