Casino Wagering Requirements Explained
The number in front of the "x" decides whether a bonus is generous or decorative. Here is the maths, applied to NZ $1 deposit offers.
Wagering requirements — also called rollover or playthrough — determine how much you have to stake before bonus winnings become withdrawable cash. A 45x requirement is not half-as-hard as 90x; it is one-half of the work. This page explains how that maths actually behaves.
What Wagering Actually Is
When a casino credits a bonus — free spins, match funds, or cashback — the money sits in a separate bonus balance. You cannot immediately withdraw it. The wagering requirement is the total amount you have to stake before the bonus converts to withdrawable cash. A 45x requirement on a $20 bonus means you have to place $900 in combined bets before the remaining balance is yours.
The important thing to grasp is that wagering does not mean losing. Every bet you place counts towards the requirement regardless of whether you win or lose that spin. The requirement is about cycling the money through the game, not about the casino recovering the bonus. That said, the house edge of the game you play determines how much of your bankroll disappears during that cycling — which is why wagering maths ultimately comes back to RTP.
The Core Formula
Required staking = Bonus × Wagering multiplier
A $20 bonus at 45x = $900 in staking. A $20 bonus at 200x = $4,000. The difference between a 45x offer and a 200x offer is not four-fold on the surface — it is four-fold in the work, but it is much larger in the expected value, because the house edge eats a slice of every dollar cycled through the game.
Expected Value by Wagering Level
Consider the same $20 bonus played entirely on a 96% RTP pokie (4% house edge). The maths looks like this:
| Wagering | Required stake | Expected loss (4% edge) | Net remaining |
|---|---|---|---|
| 35x | $700 | $28 | -$8 |
| 45x | $900 | $36 | -$16 |
| 50x | $1,000 | $40 | -$20 |
| 100x | $2,000 | $80 | -$60 |
| 200x | $4,000 | $160 | -$140 |
At 35x, the bonus is genuinely positive-expected-value on a $20 face value once you factor in the deposit and the gameplay variance. At 200x, the expected outcome is a net loss significantly larger than the original bonus itself. This is not a small difference — it is the difference between "I got paid to play" and "the bonus was structurally impossible to win."
Game Weighting — the Subtle Catch
Not all bets count equally towards wagering. Most casinos apply a weighting table that says pokies count 100%, table games count 10%, live dealer counts 5%, and specific high-RTP games like video poker sometimes count 0%. Playing blackjack to clear a bonus sounds appealing — the house edge is much lower than on pokies — but if blackjack contributes only 10% to wagering, you are effectively facing a 450x rollover instead of 45x, which neutralises the RTP advantage.
The practical rule: when a bonus has a game-weighting table, clear it on the 100%-weighted pokies unless you have done the weighted-rollover maths in detail and it still comes out in your favour.
Other Wagering Catches to Watch
- Max bet clause: most casinos cap the maximum bet while wagering is active — commonly $5 NZD per spin. Accidentally placing a bet above this voids the bonus entirely.
- Eligible games list: some bonuses apply only to a specific game or category; playing a different game still produces real money outcomes but does not count toward wagering.
- Time limit: wagering usually has to be cleared within 7, 14 or 30 days. If the clock expires, the bonus and its winnings disappear.
- Withdrawal caps: the maximum you can cash out from a bonus is often capped, regardless of how much you genuinely won during wagering. $500 is a common cap at the $1 tier.
The Lowest Wagering in NZ
On our nine-casino ranking, 7Bit Casino (code 1BIT) and its sister site KatsuBet (code 1BET) run 45x on the $1 free spins offer — the lowest we verified in early 2026. Jackpot City runs 35x on its fiat welcome match, though 200x applies to the signup free spins. For more detail on which casinos sit where, see the full ranking on our homepage.
Rule of thumb: avoid any bonus with wagering above 50x unless the bonus face value is genuinely large (50+ spins or $100+ match). Under those conditions, the expected value is almost always negative.