Casino bonus glossary

Bonus terms A to Z

Bonus balance

Bonus money held apart from your cash until wagering is done.

Cashback

A return of part of your losses or stakes.

Contribution

How much a game counts towards wagering.

Deposit match

Bonus equal to a percentage of your deposit.

Free spins

Slot spins paid for by the casino.

Max bet

The highest stake allowed with an active bonus.

Max win

A cap on winnings from a bonus.

No deposit bonus

A bonus given without a payment.

No wagering

Winnings paid as cash.

Opt-in

A step needed to receive an offer.

Promo code

A code entered to activate an offer.

Qualifying bet

A real-money bet needed before a reward.

Reload bonus

A bonus on a later deposit.

Significant terms

Conditions that must be shown with an offer.

Sticky bonus

A bonus that can be played but never withdrawn itself.

Turnover

Total amount staked.

Wagering requirement

Stakes needed before a bonus becomes cash; capped at 10x.

Welcome bonus

An offer for new customers.

The four to learn first

Wagering requirement, qualifying bet, max bet and significant terms. See wagering explained and bonus terms explained.

Three UK-specific terms

10x cap

The legal maximum for bonus wagering in Great Britain since 19 January 2026.

Mixed-product promotion

An offer requiring play on two products, such as sport and casino. Banned since the same date.

UKGC

The UK Gambling Commission, which regulates operators and issues their licences.

More guides and tools: Casino bonus calculator, Casino bonus finder, Compare casino bonuses and How to claim a casino bonus.

Offer terms dated 5 October 2026, from each casino's published conditions. How we check and rate. 18+. Free help: National Gambling Helpline 0808 8020 133 or safer gambling.