
Offshore welcome offers look far larger than UK ones because there is no cap on advertised value. A "£3,250 bonus" is a match spread across several deposits, not cash in your account.
The three terms that actually matter
- Wagering multiplier — 35×–45× on the bonus amount is standard. Below 30× is genuinely good. Check whether it applies to the bonus alone or to deposit + bonus, which doubles the work.
- Max bet while wagering — usually £5. Breaching it voids the bonus, and this is the single most common reason withdrawals are refused.
- Max cashout — on no-deposit offers, frequently capped at 5–10× the bonus regardless of what you win.
Game weighting
Not every game clears wagering at the same rate. Slots normally count 100%, table games 10%, and live dealer games often 0%. Playing blackjack to clear a slots bonus can mean you make no progress at all.
A worked example
A £100 deposit with a 100% match at 40× wagering on the bonus means £4,000 of turnover before withdrawal. At £2 a spin that is 2,000 spins. At the 96% average RTP, the expected cost of clearing it is around £160 — more than the bonus is worth.
This is not an argument against bonuses. It is an argument for reading the multiplier before you click accept.
How the arithmetic actually works
Wagering is expressed as a multiplier, and the first thing to establish is what it multiplies. There are two conventions and the difference is a factor of two.
| Basis | £100 deposit + £100 bonus at 35× | Turnover required |
|---|---|---|
| Bonus only | 35 × £100 | £3,500 |
| Deposit + bonus | 35 × £200 | £7,000 |
The same advertised "35× wagering" therefore means either £3,500 or £7,000 of play depending on a single word in the terms. Always find which basis applies before accepting.
What clearing a bonus actually costs
Turnover is not loss, but it has an expected cost, and that cost is calculable: turnover × (1 − RTP).
| Turnover | At 96% RTP | At 94.5% | At 92% |
|---|---|---|---|
| £3,500 | £140 | £193 | £280 |
| £7,000 | £280 | £385 | £560 |
| £8,000 | £320 | £440 | £640 |
| £12,000 | £480 | £660 | £960 |
Set that against the bonus. A £100 bonus at 35× on deposit+bonus costs an expected £280 to clear on a 96% game. The offer is worth less than the cost of collecting it, which is why most players never complete one — and why operators can advertise them at that size.
Game weighting — the multiplier behind the multiplier
Not every game clears wagering at face value. A £10 bet on a game weighted at 10% contributes £1 towards the requirement.
| Game type | Typical weighting | £1,000 of play contributes |
|---|---|---|
| Slots | 100% | £1,000 |
| Slingo and scratch cards | 50–100% | £500–£1,000 |
| Roulette | 10–20% | £100–£200 |
| Blackjack | 5–10% | £50–£100 |
| Live dealer | 0–10% | £0–£100 |
| Video poker | 0–20% | £0–£200 |
The reason is house edge. Blackjack at 0.5% would let a player clear a bonus at almost no expected cost, so operators either weight it near zero or exclude it outright. If you intend to clear a bonus, you will be playing slots — the terms make sure of it.
The max bet rule, and why it voids more withdrawals than anything else
Almost every bonus caps the stake permitted while wagering is active, usually at £5. Exceed it — once, even accidentally — and most operators void the bonus and everything won from it.
This catches people constantly for a specific and avoidable reason. On a site with no UKGC stake cap, raising your stake mid-session is effortless, and a bonus buy at 100× your stake almost always breaches the limit in a single click. Autoplay set before the bonus was credited is the other common route.
- Check the exact figure in the terms, not the FAQ. It is sometimes £4, occasionally 10% of the bonus.
- Check whether a bonus buy counts as a single bet. It usually does, which makes it an instant breach.
- Check whether the cap applies per spin or per round on games with multiple stages.
- Do not change stake size at all while a bonus is live. It is the simplest rule and it removes the risk entirely.
The clauses that catch people out
Maximum cashout
Common on no-deposit and free-spin offers: winnings capped at 5× to 10× the bonus regardless of what you actually win. A £10 free-spins offer with a £50 cap means a £2,000 win pays £50.
Expiry
Bonuses expire, usually in 7 to 30 days. An £8,000 turnover requirement inside seven days is not a bonus — it is a decoration.
Bonus-first or cash-first
Some operators play your cash balance first, so you can withdraw before touching the bonus. Others play the bonus first, locking everything. The second is much worse and is rarely advertised.
Excluded games
Jackpot slots and certain high-RTP titles are frequently barred entirely. Playing one while a bonus is active can void it in the same way a max-bet breach does.
When a bonus is genuinely worth taking
- The multiplier is 25× or lower, on the bonus alone rather than deposit plus bonus.
- There is no maximum cashout, or it is high enough to be irrelevant.
- The expiry gives you realistic time for the turnover involved.
- Slots weight at 100% and the titles you actually play are not excluded.
- You were going to play that volume anyway. This is the one nobody is honest with themselves about, and it decides everything.
If any of those fail, declining the bonus and keeping a withdrawable balance is usually the better decision. A wager-free offer a tenth of the size is frequently worth more.
A worked example, start to finish
The clearest way to see how these terms interact is to follow one bonus through.
You deposit £100. The offer is 100% up to £100 at 35× wagering on deposit plus bonus, slots at 100%, £5 max bet, 30-day expiry, no cashout cap.
- Balance: £200 — £100 yours, £100 bonus.
- Turnover required: 35 × £200 = £7,000.
- At £2 a spin that is 3,500 spins. At roughly 500 spins an hour, seven hours of play.
- Expected cost of £7,000 turnover on a 96% slot: £280.
- Expected outcome: you finish with roughly £200 − £280, which is below zero. The requirement is not designed to be completed profitably.
Now change one variable. At 25× on the bonus alone, turnover is £2,500 and the expected cost is £100 — against a £100 bonus. That is break-even, and it is roughly where a bonus stops being a marketing device and starts being an offer.
Practical rules that hold up
- Divide before you accept. Multiplier × basis = turnover. Turnover × 4% = what it costs. If that exceeds the bonus, decline.
- Never change stake size while a bonus is live. It removes max-bet risk entirely.
- Clear on low volatility. High-variance games are the main reason requirements go uncompleted. Why →
- Check the expiry against the turnover. £7,000 in seven days is 500 spins a day, every day.
- Screenshot the terms when you accept. Operators do change them, and a dated screenshot settles a dispute quickly.
- Withdraw the moment it clears. Continuing to play a cleared balance is how cleared bonuses become lost ones.
When declining is the right call
Most of the time, for most players. A bonus converts a withdrawable balance into a locked one, and the lock is worth more to the operator than the bonus is to you unless the multiplier is genuinely low.
If you are depositing to play an evening and would like to keep whatever you have left afterwards, decline. If you are depositing to grind out several thousand pounds of turnover regardless, a low-multiplier bonus is worth taking. Very few people are honestly in the second category.
If you joined GamStop because gambling was becoming a problem, this page is not for you. GamStop exists because it works. Free, confidential help is available from GamCare on 0808 8020 133, and from BeGambleAware.