Bonus types explained: matched offers, spins, cashback and wagering

Nothing on this page is an offer, a recommendation or an inducement. It's an explanation of mechanics that apply across UK-licensed sites, written so that the terms attached to any specific promotion make sense when you read them. Whatever an operator's current terms say overrides anything described here.

Illustration of a gift box beside a stack of casino chips and three stars — Every offer type below is a different arrangement of the same three variables: what you get, what you must do with it, and what you can keep.

The shapes offers come in

Matched deposit: The operator adds a percentage of your first deposit as bonus funds, up to a stated cap. "100% up to £100" means a £40 deposit gets £40 of bonus, and a £300 deposit still gets £100. Bonus funds sit in a separate balance from your own money, usually can't be withdrawn until wagering is met, and are typically spent after your cash balance rather than before.
Bonus spins (often labelled free spins): A set number of spins on a named game at a fixed stake value — 50 spins at 10p is £5 of play, not £5 of anything else. What matters is what happens to anything the spins produce: some sites pay it as cash with nothing further to do, most convert it into bonus funds carrying a wagering requirement, and a few cap the total that can ever be converted.
No-wagering offers: Less common and easier to read: whatever the spins or bonus produce is paid as real money with no turnover attached. The trade-off is usually size — no-wagering offers tend to be smaller than the headline figures on wagered ones, which is arithmetic rather than generosity.
Cashback: A percentage of net losses over a defined period, returned afterwards. The two questions worth asking: is it paid as cash or as bonus funds with wagering attached, and is it calculated on losses only or on losses minus wins. Cashback described as "risk-free" is a red flag; the money was still lost first.
Reloads, missions and tournaments: Ongoing rather than one-off. Reloads are smaller matched offers for existing customers; missions ask you to complete tasks across named games for a reward; tournaments rank players on a leaderboard, usually by wins relative to stake, over a fixed window. All three are designed around continued play, which is exactly why they're worth noticing when you're deciding how long to stay.

Wagering requirements, with the arithmetic done

A wagering requirement is the total value of bets you must place before bonus funds convert into withdrawable money. It's written as a multiplier, and the multiplier is applied either to the bonus alone or to the bonus plus the deposit — a difference that doubles the work.

Same bonus, two different jobs

£50 bonus at 35x bonus: £50 × 35 = £1,750 of qualifying stakes.

£50 bonus plus £50 deposit at 35x (deposit + bonus): £100 × 35 = £3,500 of qualifying stakes.

The banner figure is identical in both cases. The second requires twice as much play, and at any realistic house edge that difference is substantial.

Illustration of a circular arrow loop containing a casino chip, an hourglass and a padlock — Turnover, a clock and a lock: the three things every wagering requirement combines.

Game weighting quietly changes the number

Not every game counts the same towards wagering. Slots usually contribute 100% of the stake, while roulette, blackjack and other table games often contribute 10%, 5% or nothing at all — and live tables are frequently excluded outright. Stake £10 on a game weighted at 10% and you've made £1 of progress.

This is why an offer with friendly-looking terms can still be a poor fit: if you only enjoy blackjack, a slots-weighted bonus is asking you to play something else for hours.

The clauses that decide the outcome

Expiry. Wagering windows are commonly 7, 14 or 30 days. When time runs out, the bonus and anything it produced usually disappear, whatever the progress bar says.
Maximum bet while wagering. Often £5 or less per spin or hand. Exceed it once and the operator can void the bonus, and this is the term that catches most people.
Conversion cap. A ceiling on how much bonus money can become cash — a bonus that grows to £900 may still convert at a stated maximum, with the rest forfeited.
Excluded games. Certain jackpot slots and high-RTP titles are usually barred from contributing, and playing them can invalidate the whole bonus.
Qualifying stake or deposit. The minimum needed to trigger the offer at all, plus any requirement that the qualifying bet is settled before the bonus appears.

What UK rules require of the terms

Gambling advertising in Britain has to be clear about material conditions, and the Competition and Markets Authority has previously forced operators to drop terms it considered unfair — including bonus conditions that let a site confiscate a customer's own money. Terms still vary widely in quality, but the significant conditions have to be visible rather than buried, and an offer described as free shouldn't come with hidden strings.

None of that makes an offer good value. It makes it legible, which is a different thing.

A sixty-second read of any offer

Find the multiplier and check whether it applies to bonus only or deposit plus bonus.
Find the expiry window and be honest about whether you'll play that much in that time.
Find the maximum bet allowed while wagering.
Check the weighting table for the games you actually want to play.
Check the conversion cap, if there is one.

If any of those five are hard to find, that tells you something about the operator too.

Offers are marketing, and they work — that's why they exist. The most useful thing to remember is that a bonus adds obligations to your play rather than removing risk from it, and there's nothing wrong with turning one down and playing with your own money on your own terms. Compare how the six sites structure their welcome offers