Every bonus comes with strings attached, and in the UK those strings are called wagering requirements. Put simply, the figure tells you how many times you must play through a bonus or deposit before any winnings can be withdrawn. A 100% deposit bonus of £50 with a 30x wagering requirement means £1,500 of qualifying bets must be settled before a penny leaves your account. Understanding this single number separates informed players from frustrated ones. Read more about this at welcome bonus.
The scale of the ask varies enormously. Some sites apply 20x, others push past 60x, and the difference in real cost is stark. On a £100 bonus, moving from 30x to 60x doubles the playthrough from £3,000 to £6,000. That gap is the difference between a realistic withdrawal and a treadmill you never finish.
Reading the Terms Before You Claim
Bonus funds are rarely cash. Most UK-licensed operators credit bonus money separately, and it is usually the bonus alone that carries the playthrough , though some apply it to deposit plus bonus combined. Always check which. A 40x requirement on a £50 bonus is £2,000 of bets; a 40x requirement on a £50 deposit plus £50 bonus is £4,000. Same headline figure, double the work.
Game weighting matters just as much. Slots typically contribute 100% toward wagering, while table games often count at 10% or less, and some are excluded entirely. If your bonus restricts you to 20% weighted games, a £2,000 target becomes an effective £10,000. Reputable guides list weighting tables upfront, and you should read them before opting in.
Watch the clock too. Bonus expiry windows of 7, 14 or 30 days are common, and stakes made after expiry do not count. There is also a maximum bet cap, usually £5 per spin or hand, and breaching it can void the bonus and any associated winnings outright.
Working Out What a Bonus Really Costs
A useful rule of thumb: multiply the bonus by the wagering multiplier, then apply the house edge of the games you intend to play. At a 96% RTP slot, the house edge is 4%, so £3,000 of playthrough carries an expected cost of around £120. If the bonus is worth less than that theoretical cost, the offer is poor value on average , though variance means some players will still come out ahead.
Low-stakes players should favour smaller multipliers over bigger headline bonuses. A £10 free bonus at 20x requires just £200 of play; a £100 bonus at 50x requires £5,000. The first is realistically clearable in a session or two, the second demands sustained play and patience.
| Bonus | Wagering | Playthrough | Expected Cost (96% RTP) |
|---|---|---|---|
| £10 | 20x | £200 | £8 |
| £50 | 30x | £1,500 | £60 |
| £100 | 40x | £4,000 | £160 |
| £100 | 60x | £6,000 | £240 |
Practical Tips for Clearing Wagering
- Check the contribution percentage of your chosen game before you start playing.
- Stick to stakes well below the maximum bet cap , breaching it forfeits everything.
- Track your progress manually; not every site displays a live wagering counter.
- Prefer bonuses with 30 days to clear over 7-day offers if you play casually.
- Decline any bonus whose playthrough exceeds what you can realistically stake.
Finally, remember that under UK Gambling Commission rules, bonuses must be clearly presented before you opt in , so there is no excuse for surprise terms. If a site buries its wagering figures, take that as a signal about how it treats players and look elsewhere. Play the terms, not just the headline, and the maths will stay on your side.