Online casino bonuses are the primary tool operators use to attract players, but the terms and conditions attached to them can be confusing. Whether you are a new player claiming a welcome offer or a seasoned pro looking for value, understanding the mechanics of wagering requirements, sticky vs. non-sticky bonuses, and free spins is essential to protecting your bankroll.
This guide breaks down the math and terminology behind these offers, helping you distinguish between a genuine opportunity and a “trap” bonus.
1. What Are Wagering Requirements?
The wagering requirement (also known as a “rollover” or “playthrough” requirement) is the number of times you must bet your bonus money before it turns into withdrawable cash. This is the single most important factor in determining the value of a bonus.
How to Calculate Wagering Requirements
Casinos usually apply wagering requirements in one of two ways:
- Bonus Only: The multiplier applies only to the bonus funds credited.
- Deposit + Bonus: The multiplier applies to your deposit plus the bonus funds.
Example Scenario: You deposit $100 and receive a 100% match bonus ($100 bonus). The requirement is 30x.
| Calculation Type | Formula | Total Wagers Needed |
|---|---|---|
| Bonus Only (30x) | $100 (Bonus) x 30 | $3,000 |
| Deposit + Bonus (30x) | ($100 Deposit + $100 Bonus) x 30 | $6,000 |
Pro Tip: Always check if the wagering applies to “D+B” (Deposit + Bonus). A 30x D+B requirement is effectively a 60x requirement on the bonus alone, making it much harder to clear.
2. Sticky vs. Non-Sticky Bonuses
Not all match bonuses behave the same way. The distinction between sticky and non-sticky bonuses changes your strategy entirely.
Non-Sticky Bonuses (The “Parachute” Bonus)
This is the most player-friendly type of bonus. Your real money and bonus money are kept separate.
- How it works: You play with your real money first. If you hit a big win while playing with your cash, you can cancel the bonus and withdraw your winnings immediately. You only start using the bonus funds (and engaging the wagering requirements) if you lose your real money balance.
- Why it’s better: It acts as a second chance or a “lifeline” without locking in your real cash.

Sticky Bonuses (The “Phantom” Bonus)
A sticky bonus is “stuck” to your account. It can never be withdrawn.
- How it works: You play with a combined balance. Even if you complete the wagering requirements, the original bonus amount is removed from your account when you withdraw.
- The Strategy: Sticky bonuses are often larger (e.g., 200% or 300% matches). They are best used for high-variance play—betting big to try and land a massive win early, since the bonus balance itself is essentially “play money” used to generate real wins.
3. Free Spins: The Fine Print
Free spins allow you to play a specific slot game without using your own balance, but they come with their own set of rules.
- Wagering on Winnings: In most casinos, the money you win from free spins is credited as bonus money, not cash. This means you must then wager that amount (e.g., 35x) before you can cash out.
- Max Win Caps: Many free-spin offers have a cap on withdrawals. Even if you hit a $1,000 jackpot on a free spin, the terms might limit your withdrawal to $100.
- No-Wager Spins: These are the “holy grail” of spins. Winnings are paid in cash and can be withdrawn immediately. These are rare but highly valuable.
Key Takeaways for Smart Play
- Read the T&Cs: Look for “game weighting” (e.g., Blackjack often contributes only 10% to wagering) and “max bet” limits (usually capped at $5 per spin while wagering).
- Math Matters: Calculate the total wagering amount before depositing. If the requirement is mathematically unlikely to be cleared, skip the bonus.
- Identify the Type: Ask support if the bonus is “forfeitable” (non-sticky) before claiming.



