The Golden Rule: Read the Terms Before You Claim
Casino bonuses are marketing, and like all marketing, the headline is the best part. A 200% bonus with 60x wagering is usually worse than a 100% bonus with 25x wagering. This guide teaches you the maths behind casino bonuses so you can tell good offers from bad ones in seconds.
How Wagering Requirements Actually Work
A wagering requirement (also called playthrough or rollover) is a multiplier applied to your bonus — sometimes to bonus + deposit. Example: you deposit $100 and get a $100 bonus with 30x wagering on the bonus. You must bet $100 × 30 = $3,000 before withdrawing. If wagering applies to bonus + deposit, that's $200 × 30 = $6,000. Always check which amount the multiplier applies to — this single detail doubles or halves a bonus's real value.
| Wagering on | Calculation | Total play needed |
|---|---|---|
| Bonus only (30x) | $100 × 30 | $3,000 |
| Bonus + deposit (30x) | $200 × 30 | $6,000 |
| Bonus only (45x) | $100 × 45 | $4,500 |
| Bonus + deposit (45x) | $200 × 45 | $9,000 |
Free Spins: What They're Really Worth
Free spins are usually valued at $0.10–$0.25 per spin. A 100-spin offer sounds huge but may be worth just $10–$25 of wagering fuel. The important numbers: spin value, eligible games, and wagering on winnings (typically 20x–40x). Free spins on high-RTP slots like Book of Dead (96.2%) hold more expected value than spins on low-RTP exclusives.
- Spin value: $0.10, $0.20 or $0.25 per spin
- Winnings cap: many offers cap spin winnings at $50–$100
- Expiry: spins often expire in 24h–7 days
- Game restrictions: usually one designated slot
Bonus Types Compared
Deposit match bonuses are the workhorse of casino promos — predictable and easy to evaluate. No deposit bonuses are great for testing a casino risk-free. Cashback returns a percentage of losses, usually with low wagering. Reload bonuses reward existing players — the best value comes to regulars here, not in the welcome offer.
| Bonus type | Typical size | Wagering | Verdict |
|---|---|---|---|
| Deposit match | 100%–125% | 25x–40x | Best all-round value |
| No deposit | $5–$25 | 40x–60x | Great for testing only |
| Free spins | 20–250 spins | 20x–40x on winnings | Good extra, rarely the main event |
| Cashback | 5%–15% of losses | 0x–10x | Best for regulars |
Game Weighting: The Hidden Term
Not all games count equally toward wagering. Slots usually count 100%, but table games like blackjack and roulette often count 5–20% — or nothing. If you plan to clear a bonus on blackjack, you may need to wager 10–20x more than the headline number. Always check the game weighting table.
The 5-Point Bonus Checklist
Before claiming any casino bonus in 2026, run this checklist:
- Wagering multiplier — is it applied to bonus only or bonus + deposit?
- Maximum bet rule — most bonuses cap bets at $5 per spin while wagering; breaking it voids the bonus
- Game weighting — do your preferred games count?
- Time limit — 7–30 days is standard; less than 7 is a trap
- Withdrawal cap — some bonuses cap cash-out at 5–10x the bonus
Where to Find the Best Casino Bonuses in 2026
Based on our testing, these offers currently provide the best real value: Mostbet's 125% bonus + 250 free spins for size, Stake's rakeback system for regulars, and Melbet's 100% + 30 free spins for balance. Compare our top-rated sites before choosing.
