Wagering is an amount you stake, not an amount you lose
A wagering requirement is the total you have to stake before bonus winnings become cash you can withdraw. It is not money you have to lose, and it is not money that needs to be sitting in your account. On a £50 bonus, “10x wagering” means £500 of stakes — placed in whatever size bets you like, from a balance that goes up and down while you play.
Plenty of people can put £500 through a slot starting from £50. That part is rarely what catches them. What catches them is the four other clauses printed alongside the multiplier, and one of those decides what you can withdraw regardless of how the wagering goes.
How the same £10 gets staked forty times over
Money you stake does not vanish the moment you bet it. Some of it comes back as wins, lands in your balance, and gets staked again. That is why a £500 requirement does not need £500 in your account — the same pounds do several laps.
We are not going to put a number on how many laps, because that depends on the game’s return, and we have not verified the RTP of any game on the sites we cover. The brands we read do not publish whether RTP is even displayed in-game. Anyone who tells you a bonus “usually” clears at some tidy percentage is guessing.
What you can work out exactly is the size of the job, in spins rather than pounds. That is the number worth knowing before you start, because it is really a measure of time.
| Your stake per spin | Spins needed to stake £500 |
|---|---|
| 20p | 2,500 |
| 50p | 1,000 |
| £1 | 500 |
| £2 | 250 |
Two thousand five hundred spins is not a bonus. It is an evening, or several. Decide whether you fancy that before you take the offer, not four hundred spins in.
“10x bonus” and “10x deposit + bonus” are different jobs
The multiplier is meaningless until you know what it multiplies. Three words after the number change the whole sum.
Take a £10 deposit and a £50 bonus, and a hypothetical 40x requirement:
| What the terms say | Base amount | Stakes required |
|---|---|---|
| 40x bonus | £50 | £2,000 |
| 40x deposit + bonus | £60 | £2,400 |
Four hundred pounds of extra staking, hidden in two words. Our wagering calculator has a toggle for exactly this — flip it between “bonus only” and “deposit + bonus” and watch the total move.
Worth reading closely: Slots Kingdom’s significant-terms line, which we read on 27 August 2026, says “£200 max bonus, 10x Bonus wagering requirements”. The capital B is doing real work there. Pirate Slots carries the same 100% match up to £200 at 10x on the bonus. Match the maximum and you are looking at £2,000 of stakes — from a £400 balance, which is a very different afternoon to the £500 version above.
What the multiplier costs, and the number we won’t invent
The arithmetic is simple and it is worth seeing laid out, because the difference between multipliers is much larger than the headline bonus figures that sit next to them.
| Wagering | Stakes needed on a £50 bonus | Stakes per £1 of bonus |
|---|---|---|
| 10x | £500 | £10 |
| 20x | £1,000 | £20 |
| 40x | £2,000 | £40 |
| 65x | £3,250 | £65 |
You will see plenty of sites quote an industry average here. We have not measured one, so we are not going to publish one. What we can tell you is what we read on the operators’ own pages on 27 August 2026: the welcome offers across the Jumpman Gaming brands carry 10x, while a 65x figure appears against other promotions on those same sites. Six and a half times the staking, same brand, same balance.
At Aladdin Slots and Lights Camera Bingo it gets murkier still: both 10x and 65x appear against no-deposit wording. We cannot tell you from the published terms which applies to which spins, and we are not going to guess. Ask their support before you play through anything — bearing in mind that support across these brands is a web form and a shared email address, with no published response time.
The practical rule: the welcome multiplier does not carry over. Read every promotion’s own line, every time.
Contribution percentages, and the game list that replaces them
Where terms give you a contribution percentage, they are telling you how much of each £1 staked counts towards the requirement. Slots typically count in full; other categories often count for a fraction. The effect is multiplication, not subtraction.
| Game contribution | Stakes needed to clear a £500 requirement |
|---|---|
| 100% | £500 |
| 50% | £1,000 |
| 20% | £2,500 |
| 10% | £5,000 |
At 10%, a requirement you thought was £500 is £5,000. The calculator has a contribution field for that reason.
Here is the honest complication. On the Jumpman brands we read, we did not find a published contribution table at all. What their bonus terms carry instead is a named list of games on which bonus wagers can be placed — Jungle Jim, Lost Sphinx, Luck of the Irish, 5 Lions, Fluffy Favourites, Eye of Horus and several of the Big Bass titles among them.
That changes the question you need to ask. Not “how much does this game count for”, but “am I allowed to play it while the bonus is live”. Find that list before you pick a game, because straying off it is the sort of thing that voids a bonus rather than merely slowing it down.
Max bet and expiry: two clauses we won’t fill in for you
A max bet clause caps the stake you may place while a bonus is active. An expiry clause sets how long you have to finish. Both are worth finding, because breaching a max bet can void the bonus outright, and an expiry can end the job while your balance is still healthy.
We did not verify a specific max bet cap or an expiry period in the terms we read on 27 August 2026, so we are not publishing a figure for either. That is a gap in what we know, not a suggestion that no such clause exists.
You can close it yourself in about thirty seconds. Open the site’s terms page and search it for “maximum bet”, “max stake” and “expire”. If nothing comes back, screenshot the promotion page as it stood when you accepted it. If something does, note the number before your first spin rather than after your best one.
The conversion cap, which no calculator can rescue you from
This is the clause that decides what the offer is actually worth, and it is the one almost nobody reads.
Across the Jumpman brands, bonus conversion to real funds is capped at your lifetime deposits, up to a maximum of £250. On the no-deposit offers at Aladdin Slots and Lights Camera Bingo, the cap is £50. Several brands also cap the spins themselves at £8 max win per 10 spins.
Work it through. You deposit £10. You take the offer at Crystal Slots, clear the 10x wagering in full, break no rules, and finish with £400 in your balance. Your lifetime deposits are £10. You convert £10.
The wagering was not the constraint. It never was.
Our calculator will tell you the stakes a requirement demands, and it will do it accurately. It cannot tell you what happens at the end, because the conversion cap is a separate term operating on a separate quantity. Read the wagering line and the conversion line together, or you have only read half the offer. On Crystal Slots’ own terms line the two sit in the same sentence, which is at least honest of them.
The offers where the wagering really is nothing
Not every bonus has a requirement, and it is worth knowing what a genuine 0x looks like.
Big Thunder Slots, Buffalo Spins and Loot Casino run a variant giving 50 spins on Big Bass Splash where the spin winnings are paid in cash, with 0x wagering on those winnings. Nothing to clear. What lands is yours.
The catch is that a second variant of the same offer, with the same headline, pays the winnings in bonus cash at 10x instead. Same number of spins, same game, entirely different offer. The words that separate them are “paid in Cash” and “0x” — if those are not in the significant-terms line, you are on the other version. Both require a £10 deposit, so neither is money for nothing.
Five lines to find before you deposit
| What to look for | Why it decides things |
|---|---|
| The multiplier, and what follows it | “10x bonus” and “10x deposit + bonus” are different totals |
| Game restrictions or contribution | A named list narrows your choices; a percentage multiplies the work |
| Max bet while wagering | Breaching it can void the bonus, not just delay it |
| Expiry | An unfinished requirement at the deadline is usually a lost balance |
| The conversion or max win cap | This sets your actual ceiling, whatever the wagering does |
Every review on this site publishes those in the same place, with the date we read them. The welcome offers comparison puts the terms side by side, and our page on the Jumpman Gaming brands explains why thirty-odd sites keep showing you the same clauses. How we arrive at a bonus score is set out in how we rate.
One last thing, and it matters more than any of the arithmetic above. A wagering requirement is a reason to keep playing that was written by someone other than you. If that is nudging you past what you meant to spend, the deposit limits, reality checks, time-outs and GamStop registration on these sites are all available now rather than later. Our advice does not change: set the limit while you are indifferent to it.