Wagering requirements are the most misunderstood aspect of casino bonuses. They appear in small print and can transform what looks like a generous offer into a mathematically unfavourable deal. This guide explains exactly how they work, how to calculate them, and when a bonus is worth taking.
What is a Wagering Requirement?
A wagering requirement specifies how many times you must bet the bonus amount before any winnings can be withdrawn. It exists because without it, players could simply claim a €100 bonus and immediately withdraw €100.
Example: You receive a €100 bonus with ×30 wagering. This means you must place €100 × 30 = €3,000 in total bets before withdrawing anything. During this time your bankroll fluctuates with each bet — you might reach the target in profit, at break-even, or more likely at a loss given the house edge.
Bonus-Only vs Bonus + Deposit Wagering
Two common structures:
- Bonus-only: €100 deposit, €100 bonus, ×30 → wager only €100 × 30 = €3,000
- Bonus + deposit: (€100 + €100) × 30 = €6,000 — twice as demanding
Always check which type applies before claiming. Bonus + deposit wagering should be treated as roughly double the headline multiplier.
Game Contribution Rates
Not all games count equally toward wagering. Typical rates:
- Slots: 100%
- Live casino (blackjack, roulette): 0–20%
- Video poker: 10–20%
- Jackpot slots: sometimes 0% or excluded entirely
If you prefer live casino, a ×30 bonus where live casino contributes 10% effectively becomes ×300 for your preferred games — completely unachievable. Always check game contributions before activating a bonus.
Maximum Bet Restrictions
Almost all bonuses include a maximum bet per spin — typically €3–5. Exceeding this, even accidentally, can void the bonus and all associated winnings. This is a common trap: players try to clear the wagering faster with bigger bets and lose everything. Set a bet size reminder before starting.
Time Limits
Most bonuses expire after 7–30 days. If you don't complete the wagering in time, the bonus and winnings are forfeited. To wager €3,000 at €1 per spin on a medium-volatility slot, you need approximately 3,000–5,000 spins, which takes 5–10 hours of play. Be realistic about whether you can complete this before claiming.
How to Calculate Real Bonus Value
Formula: Bonus value = Bonus amount − (Total wagering × House edge)
Example: €100 bonus, ×40 wagering, playing slots with average 4% house edge:
- Total wagering: €100 × 40 = €4,000
- Expected losses: €4,000 × 4% = €160
- Net bonus value: €100 − €160 = −€60
This bonus has negative theoretical value — you are statistically expected to lose more during wagering than the bonus is worth. Higher house edge games make this worse; lower wagering multipliers and higher RTP improve it.
Free Spins: The Simpler Calculation
Free spins are easier to evaluate. Find: number of spins, value per spin (usually €0.10), wagering on winnings, and maximum cashout. Example: 100 free spins at €0.10 = €10 total value. If the spins produce €25 in winnings with ×40 wagering → wager €1,000 to withdraw. Often more effort than the winnings justify. Maximum cashout caps further limit upside.
When is a Bonus Worth Taking?
- ×20 or below: generally positive expected value with high-RTP slots (96%+)
- ×21–35: marginal — depends heavily on game RTP and maximum cashout cap
- ×36–50: negative expected value for most players on most games
- ×51+: almost always mathematically unfavourable — only take for entertainment
Zero Wagering Alternatives
Duel and Stake offer rakeback — a percentage of the house edge returned to you automatically each week with no wagering, no time limits, no fine print. A 10% weekly cashback on net losses provides consistent value without the wagering treadmill. For players who dislike the complexity of bonus terms, this is significantly better value in most real-world scenarios.
Updated: January 2026. Always verify current bonus terms on the casino website.