What is a wagering requirement?
Wagering requirement — A wagering requirement is the number of times a bonus must be staked before it can be withdrawn — common on casino bonuses and stricter bonus-bet promotions.
A wagering requirement is the number of times a bonus must be staked at the operator before any winnings — and, in many cases, the original bonus itself — can be withdrawn as cash. Operators express it as a multiplier: "35× wagering" means the bonus must be turned over 35 times before withdrawal becomes available. The requirement attaches to almost every casino bonus issued by a UK operator, to most "bonus bets" issued on the sportsbook side, and occasionally to specific reload promotions. Standard sportsbook free bets and the welcome offer free-bet portions usually do not carry wagering — the free bet is staked once and the winnings are cash. The product distinction is what determines whether a "bonus" is matched-betting friendly.
Wagering requirements matter because they are the mechanism by which bonuses that look generous on the surface compound into negative-EV traps. Every additional spin or bet under wagering exposes the bonus to the operator's house edge — typically 2–5% on slots, higher on some games — and the wagering multiplier determines how many times that edge gets applied before the bonus converts to withdrawable cash. The arithmetic is unforgiving once the multiplier crosses 30×–40×. Sportsbook welcome offers rarely have heavy wagering; casino welcome offers almost always do, and that's the structural reason matched-betting beginners are advised to stay on the sportsbook side until the sign-up rush is complete. The full beginner framing for which offer types are extractable sits in our matched betting beginner guide; the underlying calculations for free bets vs. wagered bonus bets are in our bonus calculator; the broader regulatory frame for UK gambling promotions is in our matched-betting legality article.
Worked example
A typical UK casino welcome bonus: deposit £100, receive £100 bonus credit with 35× wagering on the bonus. The maths is straightforward but unflattering. The bonus must be staked £100 × 35 = £3,500 before any portion of it converts to withdrawable cash. At a typical UK slot RTP of 96%, the expected loss across £3,500 of turnover is £3,500 × 4% = £140. Starting from the £100 deposit + £100 bonus = £200 of starting balance, the expected end-state after wagering completes is £200 − £140 = £60. Net EV on the promotion: −£40 versus the £100 the customer deposited.
That number is an expectation, not a guarantee — variance can land the actual outcome anywhere from "lost the lot" to "withdrew several hundred". But the long-run average across many such promotions is negative, and that's the operator's intended outcome: the bonus is a customer-acquisition cost paid for by the wagering-driven house edge. Bonuses are not always positive-EV. The wagering multiplier is the single number that determines whether a given promotion sits on the positive side of the EV line or the negative.
Common mistake
Reading the headline bonus amount and ignoring the wagering term in the small print. A "£200 bonus" with 50× wagering is structurally worse than a "£20 bonus" with 1× wagering. The operator publishes both numbers because both are required by their licence, but most marketing copy emphasises the bonus and footnotes the wagering. The matched-betting test is to multiply the bonus by the wagering and apply the relevant house-edge estimate (4% for typical UK slots, less for video poker, much more for specific game categories some operators exclude from wagering altogether). If the resulting expected loss exceeds the bonus value, the promotion is negative-EV and should be skipped. The other beginner trap is treating a wagered bonus bet as equivalent to a standard free bet — a 3× wagered £25 bonus bet is closer in extractable value to a £6–£8 standard free bet than to a £25 one. Always check the wagering term before treating any operator credit as cash-equivalent.