A NZ$100 deposit with a 100% match gives you NZ$200 to play, and 40x wagering on that NZ$200 means NZ$8,000 of bets before you can withdraw. At a 96% return that costs NZ$320 on average, more than the whole balance, so most players run out before they finish.
Who gets to the end of 40x
The arithmetic first
Take the common shape of a welcome offer: you deposit NZ$100, the casino adds NZ$100, and the terms say “40x wagering”. The question that decides everything is what the 40 multiplies.
If it multiplies deposit plus bonus (NZ$200), you must place NZ$8,000 of bets. If it multiplies the bonus only (NZ$100), the figure is NZ$4,000. Both appear in the wild, often worded in one line of small print.
What it costs on average
Every spin returns, on average, the game’s RTP. At 96% the house keeps 4 cents of each dollar bet. Over NZ$8,000 of bets that is NZ$320, which is more than the NZ$200 you started with. In plain terms the expected outcome of grinding through the wagering is a zero balance; the offer only works for the minority who hit a large win early.
What 20,000 simulated players did
We ran 20,000 players through both versions, betting NZ$1 per spin on a model pokie with a 96% return and medium volatility, stopping when the wagering was complete or the balance reached zero.
| Wagering applies to | To wager | Spins at NZ$1 | Finish with money | Median end balance | Average end balance |
|---|---|---|---|---|---|
| Deposit + bonus (NZ$200) | NZ$8,000 | 8,000 | 13.9% | NZ$0 | NZ$79 |
| Bonus only (NZ$100) | NZ$4,000 | 4,000 | 26.2% | NZ$0 | NZ$109 |
Read the table by the median, not the average. When wagering applies to deposit plus bonus, the median player ends with nothing, and only 13.9% of players finish the NZ$8,000 with a balance. The average ending balance of NZ$79 is pulled up by the few who win big; it should not be read as what a typical player takes home.
Wagering on the bonus alone roughly doubles the share who finish (26.2%) because it halves the number of spins you must survive.
How these numbers were made. The simulations use a model pokie, not a real game: 96% return to player, medium volatility, a fixed bet on every spin, 20,000 simulated players per case. It shows how wagering behaves; it does not tell you what a particular pokie will do.
Try your own offer
What to check before you accept
- What the multiplier applies to: bonus only, or deposit plus bonus.
- Game weighting: pokies often count 100%, but table games and live games may count far less, so the same wagering takes many times longer.
- Maximum bet: see the max-bet rule.
- Time limit: many offers expire within days, which pushes you to play faster.
- Win cap: a cap on withdrawable winnings changes the value of a lucky run.
A bonus is not free money; it is a contract that converts a fixed cost, your time and bankroll, into a small chance of a larger balance. If the wagering is high, declining the bonus and playing your own money is a legitimate option.
Questions readers ask
Is 40x a high wagering requirement?
It is common, not low. The multiplier matters less than what it applies to and which games count, so compare the NZ$ total, not the “x”.
Does a higher RTP game fix it?
It helps, but not enough: at 97% the expected cost of NZ$8,000 of bets is still NZ$240.
Can I lower the cost by betting less?
You get more spins and less variance per dollar, so more players finish, but the expected cost of the wagering is the same. See the max-bet rule.