The headline percentage is marketing; the wagering is the real cost. This comparator takes one deposit, runs the same expected-value maths across three welcome offers at once and crowns the one that keeps the most real value — so you know which bonus is actually worth claiming, not just which banner shouts loudest. Edit any term to model your own offer.
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Which welcome bonus actually stretches furthest?
The headline number lies — a 375% bonus can be worth less than a 100% one once you factor in the wagering. Enter a deposit and this crowns the one that keeps the most real value, so you know which to claim.
Why the biggest number isn’t the best deal
Every bonus looks huge until you price in the wagering. The maths is the same for all of them:
Deposit × match %, capped at the max. Extra money to play with.
Wagering × (deposit + bonus, or bonus only). What you’d bet to cash out.
Turnover × (1 − RTP). The theoretical take on that turnover.
Free play − house margin, capped by max cashout. What it’s really worth.
These are average-expectation estimates for comparison, not a prediction of any one session — variance swings results hard both ways. A positive number still carries real risk of loss; a negative one just means the wagering outweighs the bonus, so treat that offer as extra play, not profit. Figures assume you clear on the chosen game’s RTP at 100% contribution — table and live games usually count for less, which makes a bonus worse.
18+ · Terms & conditions apply · Play responsibly. Bonus terms shown are each brand’s published welcome offer and can change — always check the current terms at the casino before depositing. Figures are expected-value estimates for comparison only, not a guarantee of winnings.
Built by newcasino.ai — honest casino reviews for Norway, Ireland & Canada.
Casino bonus value — frequently asked questions
Is a casino bonus worth taking?
Often, but not always. A welcome bonus is free extra play on a deposit you were making anyway, so the best one costs you nothing. The trap is the wagering: a bonus with a huge headline percentage but heavy wagering can be worth less than a small low-wager offer. Compare the real value first.
What does wagering requirement mean?
It is how many times you must bet the bonus (or deposit plus bonus) before you can withdraw. A 40x requirement on a 100 euro bonus means 4,000 euro of turnover. The higher the multiplier, the more you stake, and the more the house edge quietly eats into the bonus.
Why is a bigger bonus % not always better?
Because the wagering scales with the bonus. A 375% offer at 40x can demand tens of thousands in turnover, and the house margin on that turnover often outweighs the extra cash. A plain 100% at 10x, or no-wager free spins, usually keeps far more of its real value.
Do free spins count as a good bonus?
They can be among the best, especially no-wagering spins that pay out as withdrawable cash. Watch two things: whether winnings carry a wagering requirement, and any maximum cashout cap. Capped, high-wager spins are worth little; a handful of clean no-wager spins can beat a large match bonus.
Are casino winnings taxed?
It depends where you live. In Ireland and for recreational players in Canada, gambling winnings are generally not taxed. In Norway, gambling winnings over 10,000 kroner are taxable no matter where the casino is licensed, offshore sites included, so a big win can cost you at tax time. Always check your own country’s rules.
Where to go next
Once you know which bonus holds its value, work out the exact turnover with our bonus wagering calculator, then line the offers up by market: best casino bonuses in Ireland and best casino bonuses in Norway. The full terms, licence checks and payment detail for each brand sit in the reviews: MyStake, Dazard, IceCasino, DolfWin and 5bet.
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