How Bonuses Actually Work: Wagering Requirements, Free Bets and the Small Print Explained

“Bet £10, get £30 in free bets.” “Deposit £20, play with £50.” Headlines like these are what get a welcome offer noticed — but they’re only half the story. The number in the headline and the amount you can actually use are rarely the same thing, and the gap between them is almost always explained by wagering requirements, buried in the small print most people never read.

This is the guide we wished existed before we started comparing offers properly: what wagering requirements actually mean, how free bets and no-deposit bonuses really pay out, and how to work out what a bonus is genuinely worth before you sign up anywhere.

What a wagering requirement actually does

A wagering requirement (sometimes called a “playthrough” or “rollover” requirement) is the number of times you have to bet the bonus amount — and sometimes your own deposit too — before any winnings from it can be withdrawn as real cash. It’s usually written as a multiplier, like “35x,” next to the offer.

So if you get a £50 bonus with a 35x wagering requirement, you need to place £1,750 worth of qualifying bets before you can withdraw anything you’ve won using that bonus. Two things catch people out here:

• Not every bet counts. Operators often restrict which games or bet types count toward wagering — some slots might count 100%, while live casino or certain sports bets count for far less, or not at all.
• “Bonus only” vs “bonus + deposit.” Some wagering requirements apply only to the bonus amount; others apply to your deposit as well, which roughly doubles the real target.

This is exactly why we show wagering requirements alongside the headline offer on every bonus listing rather than leaving you to dig for them — the number that matters is the one after “wagering requirement,” not the one in bold at the top of the banner.

Free bets vs. no-deposit bonuses vs. deposit matches

These three terms get used loosely, but they work quite differently in practice:

• Free bets (common with sports betting) give you bet credit rather than cash. If you win, you typically only keep the winnings, not the stake itself — a £10 free bet at odds of 2/1 pays out £20 profit, not £30.
• No-deposit bonuses let you play without putting your own money down first, which sounds like free money — and it is, in that you risk nothing — but they almost always carry the highest wagering requirements and the lowest maximum withdrawal caps of any offer type.
• Deposit match bonuses (“deposit £20, play with £50”) add bonus funds on top of your own deposit. These usually have clearer, lower wagering requirements than no-deposit offers, which is part of why they’re the most common welcome offer for casinos.

The questions worth asking before you claim any offer

1. What’s the wagering requirement, and does it apply to the bonus only or the bonus plus my deposit?
2. Is there a maximum bet size while wagering is in progress? (Betting over the cap can void your bonus entirely on some sites.)
3. Is there a maximum amount you can withdraw from bonus winnings, regardless of how much you technically won?
4. How long do you have to clear the wagering requirement before the bonus expires?
5. Which games or bet types actually count toward it?

None of this means bonuses aren’t worth having — a well-understood offer with reasonable terms is genuinely good value. It just means the headline figure is a starting point for comparison, not the number to plan around.

Where to go from here

Every offer on our Bonuses page lists the wagering requirement and key terms next to the headline offer itself, and every operator we list holds a real, checked UK Gambling Commission licence — see our guide to what a UK licence actually guarantees for more on that side of things.

Want to see what a bonus is really worth? Try our free bonus wagering calculator.

18+. Gambling can be addictive. Please play responsibly — free, confidential support is available from BeGambleAware, GamCare and GAMSTOP.