UK casino bonuses: what the rules require operators to tell you

Every operator legally serving Great Britain holds a Gambling Commission licence, and the licence number appears in the site footer.

⚠️ Do not stop at seeing a number. The Commission publishes a public register — look the operator up there rather than trusting the footer text, which is just text on a page anyone can write.

What a licence gives you is recourse: a complaints process, an ADR scheme, and rules on how the operator must behave. What it does not give you is a guarantee that any particular bonus is worth taking.

The number that decides whether a bonus is worth anything is the wagering requirement.

A £100 bonus at 35× means £3,500 in bets before you can withdraw.

⚠️ Check whether the multiplier applies to the bonus alone or to bonus plus deposit. With £100 deposited and £100 bonus, that is either £3,500 or £7,000 under the same «35×».

Then check the deadline. £3,500 over 30 days is £117 a day. Over 7 days it is £500 a day — a completely different commitment under the same headline.

While a wagering requirement is running, most operators cap how much you can stake per spin or hand.

Exceed it once and you can lose the bonus and the winnings from it. Not a proportionate penalty — the whole thing.

One brand we checked publishes the figure plainly, which is unusual enough to quote:

> The maximum bet allowed when using bonus credit is R$30 … exceeding it means loss of the reward and associated winnings.

⚠️ Also watch for vague clauses about «low margin» or «high variance» play. A high-volatility slot is by definition high variance. If a term is that broad, ask support about your specific game in writing and keep the reply.

Not every game counts the same towards clearing a bonus.

Slots typically contribute 100%. Table games often contribute 10%, or nothing at all.

⚠️ At 10% contribution, a £3,500 requirement effectively becomes £35,000. Playing your usual roulette while «working through a bonus» can mean making no progress whatsoever.

The contribution table is normally in the bonus terms rather than on the offer. It is worth the two minutes.

The UK has protections that most markets do not, and they work best used before anything goes wrong.

Deposit limits — set at account level, effective immediately, and slow to lift by design.

Reality checks — a periodic reminder of elapsed time, which is the single most useful setting on a device that has no clock in view.

GAMSTOP — a national self-exclusion scheme covering all GB-licensed operators at once, rather than site by site.

⚠️ BeGambleAware and the National Gambling Helpline are free and confidential. Using a deposit limit is not an admission of anything — it is the same as setting a budget for any other evening out.