Casino Bonus Wagering: What a Match Bonus Really Costs

The one formula you need

Expected cost of clearing = amount you must wager x house edge of the games you play. The bonus is worth taking only when that cost is smaller than the bonus itself.

Worked example. Flush's welcome offer starts with 100% up to $200 at 30x on a first deposit under $200, and its own Bonus Terms say wagering is on deposit plus bonus. A $50 first deposit earns a $50 bonus and needs ($50 + $50) x 30 = $3,000 of wagering; on slots with a 4% edge the expected cost is about $120, more than twice the bonus. Its bigger tier, 150% up to $1,500 at 35x, needs a first deposit of $200 or more: $300 earns $450 and needs ($300 + $450) x 35 = $26,250 of wagering, about $1,050 at 4%. You cannot dodge that cost on low-edge games either: Flush counts Originals at only 5% toward wagering, which is exactly why casinos weight bonus wagering towards slots.

Our wagering calculator does this arithmetic for any offer.

The fine print that changes the answer

• Bonus only, or bonus plus deposit? 40x on the bonus is half the work of 40x on bonus plus deposit when the match is 100%.
• Game contributions. Slots usually count 100% towards wagering; table games and some Originals often count far less, or nothing.
• Maximum bet while wagering. Bets above the cap can void the bonus and its winnings.
• Maximum cashout. Some bonuses cap what you can withdraw from them, whatever you win.
• Time limits. Unfinished wagering usually expires with the bonus.

The 1x deposit rule is not a bonus term

Separately from any bonus, many casinos' terms require every deposit to be wagered once before withdrawal. It is an anti-money-laundering rule. At a 1% edge it costs about 1% of the deposit; it is not worth worrying about, but it does mean you cannot deposit and immediately withdraw.

Why recurring rewards often beat big matches

Several of the strongest casinos in our directory skip the giant welcome match altogether. Roobet leans on its VIP Club and a $100,000 weekly raffle, Chips.gg on raffles and The Vault; Cloudbet pays its welcome package of up to $2,500 as real cash rewards with no rollover. For a regular player, money with no wagering attached is worth more per dollar than a much bigger number with 40x on it.

One thing to check with rakeback: whether the percentage applies to your wagers or to the house edge on them. 10% of the edge on a $1,000 wager at 1% is $1; 10% of the wager would be $100. Casinos mean the first far more often than headlines suggest. Our rakeback calculator works out the real figure.

A sensible rule

Take a bonus when you would have wagered that much anyway, on games that count, and the expected cost is below the bonus. Skip it when the headline percentage is doing all the work. We publish a casino's bonus figure only when we can read it on the operator's own site; where affiliate sites quote conflicting numbers, our review says so instead of picking one.