How to Calculate Wagering Requirements on a Casino Bonus
A bonus is not a gift, and the wagering requirement is the clause that explains the difference. It sets how much turnover you must generate before the bonus and anything won with it can leave the account. Players who never read it are often surprised at the first withdrawal, while players who calculate it in advance know exactly what they are accepting.
What a Wagering Requirement Actually Means
A wagering requirement, also called a playthrough requirement, is a multiple applied to a bonus amount. The result is the total value of bets you must place before the bonus funds convert into withdrawable money. It appears next to every offer as a figure such as 30x, and it is usually the same multiplier applied to the bonus rather than to your own deposit.
The wording matters here. Some offers apply the multiplier to the bonus alone, others to the bonus plus the deposit, and a few to the potential winnings instead. Two casinos can advertise an identical 30x and mean three different things.
The Formula You Can Do in Your Head
The arithmetic is simple once you know which base the operator uses. Multiply the base amount by the wagering multiplier, and you have the turnover target. If the multiplier applies to the bonus only, a 100 bonus at 30x requires 3,000 in total bets. That is the whole calculation.
What complicates it is everything attached to that number: which games count, how much of each stake counts, what the maximum bet is, and how long you have. Each of those can multiply the real effort well beyond the headline figure.
A Worked Example on a Bonus of 100
Take a welcome offer of 100 with a 30x requirement on the bonus. The target is 3,000 in turnover. Play a game that counts in full and every 1 you stake reduces the remaining target by 1, so the requirement is met after 3,000 in stakes, whatever the individual results.
Play a game the operator weights at half, and each 1 staked counts as 0.50. The same 3,000 target then demands 6,000 in stakes. Nothing about the bonus changed; only the contribution did.
| Term | What it means | Example on a 100 bonus |
|---|---|---|
| Wagering multiplier | How many times the base must be played through | 100 x 30 = 3,000 turnover |
| Contribution rate | Share of each stake credited toward turnover | At half weight, 6,000 in stakes for the same target |
| Maximum bet | Cap on a single stake while the bonus is active | Stakes above the cap can void the bonus |
| Time limit | Period in which the turnover must be completed | Set by the operator's bonus terms |
The table shows why the headline multiplier is only the starting point. The three rows underneath it decide how much of your own time and bankroll the offer actually costs.
Why Game Contribution Changes the Total
Not every game contributes to turnover at the same rate, and some contribute nothing at all. Operators publish a contribution list in their bonus terms, and the figures on it are set by the operator rather than by any shared industry standard. Slots frequently count in full, while table games and live dealer titles are commonly weighted lower or excluded outright.
The practical effect is easy to miss. A player who spends an evening on a game weighted at a fraction of full value may finish with the target barely moved, even though the balance went up and down all night. Before starting, check which titles are eligible and what weight each one carries.
- Check the contribution list for the specific games you plan to play.
- Assume excluded games count for nothing, even if you win on them.
- Prefer eligible titles if the target looks large relative to your bankroll.
- Re-read the list if the operator updates its terms mid-promotion.
The Maximum Bet Rule Nobody Reads
Most bonuses cap the size of a single bet while the offer is active. The cap exists so that a player cannot chase the turnover target with a few large stakes, and breaching it is treated as a breach of the terms. The usual consequence is that the bonus and any winnings from it are removed, which can happen after the requirement has already been met.
The cap is normally a fixed amount stated in the bonus terms, but it can also be expressed as a share of the bonus. Because the rule applies to the stake and not to the result, a single oversized spin is enough to trigger it, even if that spin lost.
Deadlines and What Happens When They Pass
Bonuses expire. The terms state a window, counted either from the moment of acceptance or from the moment of the qualifying deposit, and turnover left unfinished when the window closes is normally lost along with the bonus balance. Some operators remove only the bonus, others remove associated winnings as well.
Expiry interacts badly with contribution rates. A player who spends the window on low-weighted games can reach the deadline with most of the target outstanding, and the remaining balance disappears without any warning beyond the terms. Setting a personal deadline a few days before the official one is the simplest defence.
Checking the Numbers Before You Accept
Read the bonus terms before opting in, not after the first withdrawal request. Look for the base the multiplier applies to, the contribution list, the maximum bet, the time limit and the order in which the bonus balance is used. Then do the multiplication once, on paper or in your head, and decide whether the target fits the way you actually play.
If the offer survives that test, it is a reasonable one for your bankroll. If the target only works with games you never play, or with stakes above the cap, the offer is not the bargain the banner suggests. Our casino reviews record bonus terms as they appear at the time of writing, the news section covers rule changes that affect existing offers, and the payments section explains how bonus conditions can delay a withdrawal once the target is met.