Casino Bonus Glossary: Max Win, Wagering, RTP and More

Bonus abuse: Play the casino treats as exploiting an offer, e.g. multiple accounts or low-risk betting patterns. It is the clause casinos cite to void winnings, so read how each site defines it.
Bonus funds: Money credited by the casino that cannot be withdrawn until the wagering requirement is met. Not the same as cash.
Cashback: A percentage of net losses returned over a period. When paid as cash it has no wagering and no max win. More
Game contribution: How much of each bet counts toward wagering. Slots usually count 100%; table and live games often 10% or 0%.
Game max win: The largest payout a slot can produce on one spin or feature, as a multiple of the stake (e.g. 5,000x). Set by the game provider, not the casino. More
GAMSTOP: The free UK self-exclusion scheme. Registering blocks you from every UK-licensed online casino for 6 months, 1 year or 5 years. More
Max bet rule: The highest stake allowed per spin while a bonus is active. Breaking it, even once, is the most common reason bonus winnings are voided. More
Max cashout: The most you can withdraw from bonus winnings. Anything above it is removed when the bonus converts. Also called max conversion. More
Max conversion: Same as max cashout: the cap on how much bonus money turns into withdrawable cash, often a multiple of the bonus (e.g. 4x). More
Max win: Any cap on what you can win. On offers it means a limit on bonus or free-spin winnings; on games it means the slot's top payout. More
No max win bonus: An offer with no cap on what its winnings can become. Whatever you win after meeting the terms is yours to withdraw. More
No wagering bonus: An offer whose winnings are paid straight as cash. It usually has no max win either, but check: some cap no-wagering spin winnings. More
RTP (return to player): The share of all money staked that a game pays back over millions of spins. A 96% RTP slot keeps 4% on average. Casinos may run lower RTP versions of the same game.
Spin value: The stake each free spin is played at. 50 spins at 10p are worth £5 of play; 10 spins at £1 are worth twice as much.
Sticky bonus: A bonus that can be played with but never withdrawn; only winnings above it can be. Opposite of a non-sticky or parachute bonus.
UKGC: The UK Gambling Commission, which licenses every operator allowed to offer online gambling to people in Great Britain. Check any licence on its public register. More
Volatility: How a slot spreads its returns. High-volatility games pay less often but can hit far larger wins, which is why no max win offers matter most on them.
Wagering requirement: How many times bonus funds must be staked before they become cash. From 19 January 2026 UK offers are capped at 10x. More