bonuses
Welcome matches, no deposit credits, free spins, cashback, reload offers, rakeback and VIP schemes, each priced by the turnover it demands and the house edge it is cleared against.
Casinos issue seven or eight recognisable kinds of promotion. They look different on the landing page. Underneath they differ in only three ways: what you receive, what turnover you must produce to keep it, and what house edge that turnover is exposed to.
Once you price all three, most offers sort themselves quickly. This guide works through each type in turn. The arithmetic is illustrative, not a quotation of any operator's terms, and you can substitute your own figures in the bonus calculator. Live offers with their published conditions sit on the bonuses page.
Every promotion can be reduced to the same subtraction.
Expected value equals the credit you receive, minus the expected cost of the turnover you must produce.
The expected cost of turnover is turnover multiplied by the house edge of the game you clear on. That is the whole model. A bonus is worth having when the credit exceeds the cost of unlocking it.
Consider a $100 match with 35x wagering on the bonus alone. Required turnover is $3,500. Cleared on a slot with a 4% house edge, the expected cost of that turnover is $140.
You received $100. You spent an expected $140 to convert it. The offer has a negative expected value of about $40 before you account for the deposit you also put at risk.
Now change one variable. Clear the same $3,500 on a game with a 1% edge, such as a Stake Originals title at 99% RTP. Expected cost falls to $35, and the offer turns positive. This is exactly why contribution tables throttle or exclude low-edge games. The restriction is not arbitrary. It is the mechanism that keeps the promotion affordable for the operator.
Read any bonus with that in mind and the terms stop looking like fine print. They look like pricing.
The standard shape is a percentage match on your first deposit, often 100%, sometimes 200%, occasionally spread across three or four deposits.
Three variables decide whether it is worth taking.
The multiplier is the obvious one. The base is the one people miss: 35x applied to bonus only is half the work of 35x applied to deposit plus bonus. The third is the maximum bet allowed while a bonus is active, commonly a few dollars per spin. Breach it once and the bonus, and often everything won with it, is voided.
| Structure | Deposit | Bonus | Required turnover | Cost at 4% edge | Net expected value |
|---|---|---|---|---|---|
| 35x bonus only | $100 | $100 | $3,500 | $140 | about −$40 |
| 35x deposit plus bonus | $100 | $100 | $7,000 | $280 | about −$180 |
| 20x deposit plus bonus | $100 | $100 | $4,000 | $160 | about −$60 |
| 10x bonus only | $100 | $100 | $1,000 | $40 | about +$60 |
The pattern is clear. Below roughly 25x bonus-only on a 4% edge game, a 100% match starts to earn its place. Above it, you are paying for the privilege of receiving free money. A headline without a published multiplier is not comparable to anything, and should be treated as unpriced rather than generous.
A small credit, commonly $10 to $25, granted for registering and verifying an account. No deposit is required.
The economics are different because your own money is never exposed. The worst case is that you clear nothing and lose a credit you did not pay for. That floor at zero is the entire appeal.
The offsetting conditions are heavy. Wagering multipliers are usually higher than on match bonuses, sometimes 50x or more. A maximum conversion cap is almost always applied, so a $10 credit that runs up to $400 during clearing may still pay out only $50 or $100.
Worked: $10 credit, 50x bonus-only, $50 conversion cap. Required turnover is $500. The probability of surviving $500 of turnover on a $10 balance is modest, and the payout is capped well below the tail outcomes that make survival worthwhile. Realistic value sits in the low single digits of dollars, not the headline $10.
Take them, but take them for what they are. They are a low-cost look at a platform and a test of its verification process, not income.
Free spins are a bonus denominated in a game rather than in currency. Fifty spins at a stated value of $0.20 has a notional worth of $10 of turnover, not $10 of credit.
That distinction sets the ceiling. At 96% RTP, $10 of spin turnover returns an expected $9.60 in winnings. Those winnings then usually carry their own wagering requirement, and often a cap.
So the chain runs: $10 of turnover, about $9.60 expected in bonus winnings, then perhaps 40x on that figure, producing $384 of further turnover, costing an expected $15 at a 4% edge. The expected value is negative before the cap is applied.
Free spins bundled into a deposit match are close to decorative. Free spins granted with no wagering on the winnings are genuinely worth the expected return, which is small but real. The presence or absence of wagering on winnings is the only detail that matters, and it is the one most often buried.
Cashback returns a percentage of net losses over a defined period, typically a week.
When it is paid in withdrawable cash with no wagering, it is the cleanest promotion in the market, because it directly reduces the effective house edge.
Worked: you produce $2,000 of turnover on a 4% edge game. Expected loss is $80. A 10% cashback on net losses returns an expected $8. Your effective edge falls from 4% to about 3.6%.
That is a real improvement and it is also the honest size of it. Cashback does not make a losing game a winning one. It shaves the rate at which the balance declines. Check three details: whether it is paid in cash or in bonus funds, whether a wagering requirement applies to the payment, and whether it is calculated on net losses or on deposits.
A reload is a welcome match for existing customers, usually smaller in percentage and lower in cap. The same three variables apply and the same arithmetic prices it.
The practical difference is frequency. A weekly 50% reload up to $50 at 30x bonus-only requires $1,500 of turnover for a $50 credit, an expected cost of $60 at a 4% edge. Repeated weekly, a marginally negative offer compounds into a steady drag and a strong prompt to deposit again. Recurring offers deserve more scrutiny than one-off ones, not less, because you will take them more than once.
Rakeback is common at crypto-native casinos and is structurally the most transparent thing on this list. You receive back a percentage of the house edge the operator takes from your turnover, paid whether you win or lose.
The arithmetic is exact. On a 1% edge game, the operator's expected take is $1 per $100 wagered. A 5% rakeback returns 5 cents per $100, reducing the effective edge from 1% to 0.95%.
| Game edge | Turnover | Operator expected take | Rakeback at 5% | Effective edge |
|---|---|---|---|---|
| 1% | $10,000 | $100 | $5 | 0.95% |
| 1% | $100,000 | $1,000 | $50 | 0.95% |
| 4% | $10,000 | $400 | $20 | 3.80% |
Notice what does not change. The effective edge stays negative at every volume. Rakeback is paid on turnover, so it rewards volume, and volume is precisely what costs you money. It is a discount on a cost, never a source of profit.
VIP programmes bundle rakeback, reloads, cashback, a named account manager and occasional discretionary gifts into tiers.
Two features make them the hardest category to value. Thresholds are often unpublished, so you cannot calculate what turnover buys which tier. And the rewards are frequently discretionary, meaning they are granted rather than owed, and can be withdrawn.
Where a scheme publishes its tiers and its rates, value it as rakeback plus cashback and ignore the rest. Where it does not publish them, treat the stated benefits as unpriced. A benefit with no disclosed threshold and no contractual entitlement is a marketing statement, not a term.
Ranked by how often the type disappoints relative to its headline:
Cashback paid in cash and published rakeback sit at the other end. Both reduce a real cost by a measurable amount, both are calculable in advance, and neither asks you to produce turnover you were not going to produce anyway.
Every figure above is reversible. Put your own multiplier, base and game edge into the bonus calculator and see whether the offer in front of you clears its own cost. If the wagering requirement is not published, there is nothing to calculate, and that absence is itself the finding.