Wagering requirements decide whether a bonus becomes cash you can withdraw. A site can advertise 100 free spins and a £100 match, then attach a 40x playthrough that keeps every penny parked in a bonus balance. Read the number before you claim, because it sets the real cost of the offer in time and stakes.
A wagering requirement tells you how many times you must stake a bonus amount before it turns into withdrawable cash. You will meet 20x, 30x, 35x and 40x across UK-licensed sites, and the multiplier lands on one of two totals. Some operators apply it to the bonus alone. Others apply it to the bonus plus your qualifying deposit, which doubles the work on a matched offer.
The difference bites on a small bankroll. Take a £20 bonus at 35x on the bonus alone and you need £700 in total stakes before anything leaves the bonus balance. Apply 35x to a £20 bonus plus a £20 deposit and the target climbs to £1,400. The two offers carry identical headlines and very different workloads.
Sites such as Spinformula casino print the wagering figure next to the bonus value, and the wording tells you whether the deposit joins the calculation. Read that line before anything else on the page.
Some bonuses stay locked to the bonus balance and vanish once you finish the playthrough. Others, called non-sticky, let you keep the bonus cash after you clear the terms. Non-sticky reads better on paper. Check whether the operator removes the bonus at cash-out, because a non-sticky offer with a lower multiplier is the better deal.
Free spins follow a separate set of numbers. The spins themselves carry no wagering in most cases, but the winnings they produce often do, and a 40x requirement on £10 of spin winnings means £400 in further stakes. Treat the spin terms as their own calculation.
Games count toward playthrough at different rates. A UKGC-licensed casino publishes a weighting table, and slots sit at the top of it. Slots normally count 100%, live roulette and blackjack often count 10% or 20%, and a handful of table games count nothing at all.
You can see the size of that gap in the maths. A £700 target costs £700 of slot spins at full weighting, or £7,000 of live roulette stakes at 10%. Check the eligible game list before you spin, since some slots get excluded from bonus play. If you want a starting point, six slots worth a look names titles that carry full weighting.
You can work out what a playthrough costs by checking the return-to-player figure on the games you plan to run it through. A 96.5% slot hands back more per spin than a 94% one, and a long requirement puts you through thousands of spins. Pick high-RTP titles for clearing and save volatile games for sessions outside the bonus. Slots with strong RTP figures give you a shortlist to work from.
Bonuses expire. Some operators give you seven days from crediting, others 24 hours from the moment you claim, and if you miss the window the operator removes the bonus balance along with anything attached to it. Win caps work in the same direction. A £250 cap sets the most you take out at £250, no matter how the reels land.
Check those numbers before you deposit, along with the licence status and the operator's history on withdrawals. A review that points to a solid payout record tells you more than the bonus headline does.
Most bonus terms set a maximum stake per spin, often £5 and sometimes as low as £2. Stake above the cap once and the operator can void the bonus, the winnings, or both. The rule catches players who raise their bet after a cold streak. Run the numbers before you raise your stake, because a £10 spin against a £700 target saves little work while it risks the entire bonus.
Your deposit method decides whether the bonus lands. Debit cards, PayPal, Apple Pay, Google Pay and open banking transfers such as Trustly qualify at most UK sites. Paysafecard often sits on an excluded list, and credit cards cannot fund a gambling account in the UK after the Gambling Commission banned them in April 2020. Confirm the rules before you fund your casino account, since a deposit from an excluded method can void the offer.
Withdrawal speed varies by method too. How a casino cashier panel works explains why some methods settle within hours while others take days.
Two welcome offers sit in front of you. Offer A gives you a £50 bonus at 30x on the bonus alone, no cap on winnings, seven days to clear, slots at 100% weighting. You stake £1,500 to clear it. Offer B gives you £100 at 40x on bonus plus deposit, a £200 win cap, 48 hours to clear, slots at 100%. You stake £8,000, and the most you can take out is £200.
Offer A needs less staking for the same headline value, gives you a week instead of two days, and leaves the ceiling open. Offer B looks twice as generous and costs five times the effort. Run the full package side by side and the two offers compare on equal terms.
Stake sizing decides whether your balance survives the playthrough. A £1 spin against a £700 target takes 700 spins. A £5 spin takes 140. A low stake stretches the session, though it gives the house edge more spins to work with, so the playthrough cost stays about the same either way. What changes is your exposure to a bad run, and a lower stake also keeps you inside any bet cap the terms impose.
Set a deposit limit before you start and keep an eye on the expiry clock. If you find yourself depositing again to chase a playthrough, GamStop can block you from every UK-licensed site for a period you choose, and BeGambleAware offers free support.
Meeting the target moves the money into your withdrawable balance, though plenty of operators strip the bonus amount from the final payout and let you keep the winnings. Confirm the figure before you request a payment, and complete identity checks early. UKGC rules require age and ID verification before your first cash-out, and a missing document gives the operator a reason to delay your payment for days.
Some operators hold a withdrawal in a pending state for a set number of hours and let you reverse it back into your balance during that window. Ask how long the pending period runs and whether you can switch it off, because reversing a payment is the quickest way to hand back a cleared bonus.
Payout times by payment method set out what each route delivers once the checks clear.
A 35x requirement on the bonus alone is the lighter deal next to 35x on bonus plus deposit. Weigh the multiplier, the game weighting, the expiry window and the win cap as one package, then decide whether the offer matches the way you play.