How rollover maths really works

A bonus is a loan of playing money with a turnover condition attached. The condition is the wagering requirement, the one clause deciding whether a promotional offer is worth anything at all. Everything else about a bonus, the percentage, the headline maximum, the free spins, is downstream of this one number and the rules that modify it.

Most explanations stop at “35x means you have to bet 35 times the bonus”. That sentence is usually wrong, and it is wrong in the direction that favours the house. The base can be larger than the bonus, the games you play can divide your progress by ten, a stake cap can void everything, and a cashout ceiling can mean the arithmetic was academic from the start.

What the requirement is measuring

Turnover, not profit and not loss. Every qualifying stake you place counts toward the target regardless of whether it wins or loses. Stake $1 and lose it, you have contributed $1. Stake $1 and win $3, you have still contributed $1, and you now have more money to keep contributing with.

This is why a wagering requirement is survivable at all. A 35x target does not mean losing 35 times the bonus. It means cycling that amount through the games, and the expected cost of cycling it is the house edge multiplied by the turnover. On a slot with a 96% return, cycling $8,750 costs roughly $350 in expectation. That is the real price of the bonus, and it is a number almost nobody calculates before clicking accept.

Two bases, and the difference is large

Operators calculate the target against one of two bases, and the terms page is the only place that says which.

Bonus only. The multiple applies to the bonus amount alone. A $150 bonus at 35x needs $5,250 of turnover.

Deposit plus bonus. The multiple applies to the combined figure. A $100 deposit with a $150 bonus at 35x needs $8,750 of turnover, which is 67% more work for the identical bonus.

Alawin uses deposit plus bonus at 35x, which is the stricter of the two arrangements. The operator publishes this plainly in its welcome terms, which is more than a large share of the market manages, but a reader comparing two offers at “35x” needs to check the base before concluding they are equivalent. A 40x bonus-only requirement is lighter than a 35x deposit-plus-bonus requirement on most deposit shapes.

The turnover figures on real deposit sizes

Alawin’s first deposit match is 150% up to $1,500, with a qualifying minimum of 40 NZD / 20 EUR as the operator publishes it. Applying 35x to deposit plus bonus gives the following.

Read the bottom row slowly. Taking the full first-deposit match commits a player to $87,500 of staking inside the bonus window. At $2 a spin that is nearly 44,000 spins. At $5 a spin it is 17,500. Deposit-by-deposit figures for all three stages of the offer sit in the three-deposit package and its turnover maths.

Weighting is where the published number stops being the number

Each game category contributes a percentage of each stake toward the target. A $1 bet on a game weighted at 10% moves the counter by 10 cents. The published multiple stays at 35x; the work required multiplies.

Alawin sets the rates out in clauses 7.7 to 7.9, and it is detailed enough to be worth reproducing.

The 0% row on table and card games is the clause that matters most, because it is the one players assume cannot be true. It is true, and it is common across the industry. A roulette player who accepts a casino bonus has taken on a target that roulette is incapable of reducing by a single cent.

Converting a weighting into an effective multiple

Divide the headline requirement by the contribution rate. That gives the multiple you are actually facing on the games you intend to play.

That 350x row is the honest reading of a 35x bonus for a live casino player. It is not a trick and it is not hidden; it is printed in the terms. It simply never appears in the marketing, where the figure quoted is always 35x.

We do not recommend taking a casino bonus at all if table games or live dealer tables are the reason you opened the account. The arithmetic does not work, and playing without the bonus leaves the balance withdrawable under ordinary rules instead of locked behind a target that your preferred games cannot touch.

One further wrinkle sits behind the percentages: the weighting is applied to the stake, not to the game’s return. A 10% contribution on a live blackjack table with a 99.5% return is not compensated by the low house edge, because the turnover required grows faster than the edge shrinks. Cycling $87,500 through a 99.5% game costs about $440 in expectation, which is more than cycling $8,750 through a 96% slot. Low-edge games are the worse vehicle for clearing a bonus, which inverts what intuition suggests.

Mixed play, and why order matters

Nothing stops a player from clearing a requirement on slots and then moving to a live table once the bonus has converted. What causes problems is mixing while the bonus is active, for three reasons.

• Stakes on 0% games consume balance without reducing the target, so the money runs out earlier relative to progress.
• Some operators treat a switch from low-contribution to high-contribution games, paired with a stake reduction, as irregular play. Alawin’s bonus clauses give the operator final say in any bonus dispute, and clause 7.3 states that decision is non-negotiable.
• Progress displays frequently show the headline figure rather than the weighted figure, so a player can believe they are halfway when they are a fifth of the way.

Maximum bet rules void more bonuses than bad luck does

Alongside the turnover target sits a stake ceiling that applies for as long as any bonus money is in play. Alawin sets it at 200 NZD / 100 EUR per spin or hand while a casino bonus is active.

That ceiling is generous by market standards, where $5 and $10 caps are routine. The risk it creates is the same everywhere: a single stake above the cap, placed at any point during the wagering period, is grounds to void the bonus and the winnings derived from it. There is no partial penalty in most terms, and no requirement that the breach be deliberate.

The practical traps are predictable rather than exotic:

• A bonus-buy or feature-purchase counts as a single stake at its full price, which can sail past a cap that ordinary spins never approach.
• Autoplay set before a bonus was credited keeps running at the old stake.
• Multi-hand video poker and multi-line configurations total the stake across hands or lines, not per hand.
• Currency confusion. If the account is in dollars and a table displays limits in euros, as happens on parts of Alawin’s New Zealand locale, a stake can be larger than it looks.

Excluded games and blocked categories

Two different restrictions get conflated. A 0% game is playable with bonus funds but contributes nothing. A blocked game cannot be opened at all while bonus funds are in the balance. Alawin blocks jackpot slots, Slingo and bingo outright, and lists specific high-volatility slots at 0%, including Starburst XXXtreme and both Dead or Alive titles.

The logic behind the excluded-slot list is uniform across the industry: these are titles with extreme variance or an unusually high theoretical return, which makes them efficient tools for clearing a requirement. Operators remove them for the same reason players want them.

Cashout ceilings decide the maximum outcome

Clearing the turnover target does not mean the full balance converts. Two separate caps apply at Alawin, and both are published.

A ceiling expressed as a multiple of the bonus has a useful property for the player: smaller deposits are proportionally no worse off, since both the bonus and its cap scale together. The free-spin caps work differently, as flat figures that make a large spin win almost entirely academic. The separate 40x condition on spin winnings is dealt with in the spin tranches and their own rollover rule.

The time limit compresses every other rule

Alawin allows 10 days per bonus. That window is what converts an arithmetic problem into a scheduling problem.

Take the $8,750 target on a $100 deposit. Spread across 10 days it is $875 of turnover a day, which at $1 a spin is 875 spins daily, or roughly 45 minutes of steady play. Manageable. Take the $87,500 target from a $1,000 deposit and the same calculation gives $8,750 a day, which is not a hobby.

Shorter windows interact badly with document checks, because the two clocks run in parallel rather than in sequence. Alawin’s verification review is stated as usually up to 10 days, exactly the length of the bonus window, and identity paperwork can consume the same ten days that the bonus is supposed to be cleared in.

One more detail is specific to how Alawin funds qualify. Money arriving through Neteller or Skrill earns no welcome match at all, so a player can fund an account, see the money arrive, and find no bonus attached and no explanation in the cashier. The exclusion is published, but it sits in the bonus terms rather than beside the payment icons.

What happens to the deposit if the bonus fails

This depends entirely on how the operator structures the balance, and it is worth reading the clause rather than assuming.

Where bonus and cash sit in a single pooled balance, an expiring bonus typically removes the bonus portion and any winnings attributable to it, leaving whatever cash remains. Where they are separated, cash is usually withdrawable throughout. Alawin adds a harder rule: cancel a live bonus and all accumulated bonus funds go with it, while a withdrawal request placed either side of activation removes eligibility for the offer.

The practical consequence is that a player who changes their mind mid-wagering has no soft exit. There is no partial credit for turnover already generated.

Deciding whether an offer is worth taking

Four questions settle it, and all four can be answered from a terms page in a couple of minutes.

• What is the base? Multiply the multiple by deposit plus bonus unless the terms say bonus only.
• What weighting applies to the games you will genuinely play? Divide the multiple by that percentage.
• What is the cashout ceiling, and is the realistic outcome worth the turnover you just calculated?
• Does the window allow that turnover at your normal stake, without raising it?

If raising the stake is the only way the sums work, the offer is not suitable at that deposit size. Lowering the deposit usually fixes it, because the turnover scales down with the base while the per-day time cost falls proportionally. Other explainers in this education section deal with the surrounding mechanics.

Questions that come up

Does a losing bet still count toward the target?

Yes. Contribution is measured on stakes placed, not on outcomes. A session that loses money can complete a wagering requirement, and a session that wins heavily can finish with the requirement untouched if the stakes were small.

How do I convert a weighted percentage into the real multiple?

Divide the stated requirement by the contribution rate. A 35x requirement on a game weighted at 10% is an effective 350x. On a 50% game it is 70x. On a 0% game no amount of staking completes it.

What is the difference between a game at 0% and a game that is blocked?

A 0% game can be opened and played with bonus funds but adds nothing to the counter. A blocked game cannot be launched at all while bonus money sits in the balance, which at Alawin covers jackpot slots, Slingo and bingo.

Can one oversized spin really cancel everything?

Under most bonus terms, yes, and intent is not a defence. A stake above the published ceiling at any point in the wagering period is grounds to void the bonus and the winnings traced to it. Feature purchases and autoplay settings carried over from before the bonus are the usual causes.

Is a lower multiple always the better offer?

No. A 30x requirement calculated on deposit plus bonus with a tight cashout cap can be worse value than a 45x requirement on the bonus alone with no cap. The base, the weighting and the ceiling have to be compared together.

Why would an operator publish a requirement that most players cannot clear?

Because the requirement is the product. The bonus funds extra playing time, and the terms are set so that the expected cost of cycling that time exceeds the expected value handed over. Publishing the rules in full is the honest version of this; hiding them is the dishonest version.

Does a progress bar in the cashier show weighted or unweighted turnover?

It varies, and it is rarely labelled. Assume it shows raw stakes until a session on a low-contribution game proves otherwise, and keep an independent count if the bonus is large enough to matter.

Sources

• Alawin terms and conditions, version 1.12 dated 19/08/2026, clauses 6 and 7
• Gambling Act 2003 as published by the New Zealand Parliamentary Counsel Office
• Department of Internal Affairs overview of gambling regulation in New Zealand