Bonuses and gambling harm

Bonuses and gambling harm: the short answer

A casino bonus is a marketing tool. It exists to bring new customers in and to keep existing ones playing, which is why regulators treat bonuses and gambling harm as connected issues rather than separate ones. For most people a bonus is simply a set of conditions attached to a deposit. For someone whose gambling is already causing problems, the same conditions can push play further than they meant to go.

Three features do most of the pushing. Wagering turns a bonus into a target of play that has to be reached. Deadlines give that target a time limit. Repeat offers such as reloads, daily rewards and loss-based refunds give a reason to come back after a losing session. None of these change a game's odds: the house edge applies to every spin, whether it is paid for with bonus funds or your own money.

This page sits in our casino bonus guides and has no offers on it. It covers how bonuses can feed harm, the rules the Gambling Commission has added since 2020 to limit that, the signs worth noticing in yourself or someone close to you, and the tools and services that help.

Gambling is a form of entertainment that costs money. Over time, losses are the most likely result, with or without a bonus.

How a bonus stretches play: wagering in pounds and minutes

Wagering is the total amount you must stake before bonus money can be withdrawn, and the mechanics are laid out in the explainer on wagering requirements. Here the point is the side effect: every pound of wagering is a pound staked at a house edge, and every spin takes time.

UK slot rules set a minimum of 2.5 seconds per spin and ban autoplay, so we can put a floor on how long wagering takes. Real sessions are always longer, because you have to press the button each time and features take longer to play out.

The last row is the example the Gambling Commission itself used when it announced the 10x cap: a £10 bonus at 50x needed £500 of play. The cap shrinks that to £100, which is a real reduction in the volume of play a bonus can demand. It does not remove the pull altogether. A £100 bonus at 10x still asks for £1,000 of stakes, and the average cost of that play is roughly £40 before any variance.

The numbers are averages. Any single session can land far above or far below them, and a run of losses during wagering is common. When the bonus is gone, the habit of a long session can remain.

Bonus features that can push behaviour

Looking at bonus terms through a harm lens, a handful of features stand out. They are legal and common, which is exactly why they are worth recognising.

• Deposit thresholds. A percentage match with a high cap rewards a bigger qualifying deposit. If the full bonus needs £200 and your budget was £20, the offer is nudging you ten times past your plan.
• Short validity periods. A validity period of three or seven days can make a bonus feel like something you will lose unless you keep playing.
• Daily claim windows. Offers released a day at a time give a reason to log in every day, even on days you would not otherwise have gambled.
• Losing feels doubled. Losing a bonus can feel like losing something you already owned, which makes it tempting to deposit again to win it back.
• Reload and loss-based offers. A refund or top-up after a losing week can feel like a soft landing, but it is still a reason to return after losing.
• VIP and high-value treatment. Personal managers and tailored rewards are aimed at the heaviest spenders, which is why the Commission tightened the rules on high-value customers in 2020.

Operators also cannot alter or increase an incentive because you reached the qualifying spend sooner than the offer period. The time-based incentive rules page explains what changed in 2026.

UK rules that link bonuses and gambling harm

Over the past six years the Gambling Commission has added rules that treat bonuses as part of safer gambling rather than just marketing. The table lists the main ones with the dates they took effect.

The customer interaction duty is the one that speaks most directly to bonuses. The Commission's text of LCCP 3.4.3 on customer interaction (opens in a new tab) lists the indicators operators must watch, and our explainer on bonuses and harm indicators walks through them. The reasons for the wagering cap are set out in the Commission's announcement that gambling promotions are to be safer and simpler (opens in a new tab).

Credit-reference-based financial risk assessments were piloted but are not live as of October 2026. The guide to how affordability checks affect bonuses explains the difference between what exists and what was proposed.

When a casino must stop offering you bonuses

Under the customer interaction code, operators look at a range of indicators: how much you spend, patterns in that spending, time spent playing, behaviour on the site, what you say to customer service, how you use the safer gambling tools and signals from the account itself. Where those add up to strong indicators of harm, the operator must stop marketing to you and stop you taking up new bonuses.

Strong indicators must be acted on promptly. Automated decisions need a manual review, and customers can contest an automated decision. If bonuses suddenly disappear from your account, it may be this rule at work. That is a protective step, and the Commission's customer interaction rules page explains how operators are expected to apply it.

Operators cannot pick and choose. Failures in customer interaction are behind many of the Commission's recent fines, including a £2m settlement by Paddy Power Betfair in December 2025.

Warning signs that a bonus is part of a problem

Nobody needs to be a clinician to notice when a bonus has stopped being a small extra. The signs below are practical ones that show up in how bonuses are used.

One sign on its own does not mean someone has a gambling problem. Several together, or one that keeps repeating, is a reason to step back. The Gambling Survey for Great Britain's 2025 report put the share of adults scoring 8 or more on the Problem Gambling Severity Index at 2.4%, a reminder that serious harm affects a meaningful number of people.

Bonuses and harm: myths and facts

• Myth: a bonus makes gambling safer because you are playing with the casino's money. Fact: bonus play still runs at the house edge, and the bonus does not change the long-run cost of play.
• Myth: you have to use a bonus once it is credited. Fact: you can decline, forfeit or let it expire. You can also withdraw your own deposit balance while a bonus is active, a point covered in our answer on withdrawing your deposit with a bonus active.
• Myth: losing a bonus means losing money. Fact: forfeiting an unwagered bonus costs you nothing you deposited; the money you could lose is the money you keep staking to rescue it.
• Myth: VIP status means a casino trusts your finances. Fact: since October 2020 operators must check affordability and harm before offering VIP treatment, and our answer on whether VIP schemes are safe explains the limits of those checks.

What to do if bonuses are feeding gambling harm

If you recognise yourself in the warning signs, these steps put distance between you and the offers. They work in any order, but the first three take only a few minutes.

1. Stop opting in. Most bonuses need an opt-in, so simply not ticking the box is enough. Our guide to opting out of bonuses shows where the settings usually sit.
2. Withdraw what is left of your own deposit. You are entitled to do this even if a bonus is active, though the bonus itself will usually be forfeited.
3. Turn off marketing for every product and channel in your account settings, and follow our guide to stopping bonus emails if offers keep arriving.
4. Set a deposit limit below what you have been spending. Decreases take effect immediately; increases have a delay.
5. Take a time-out at the operator if you need a short break, or register with GAMSTOP to block all GB-licensed gambling sites for six months to five years.
6. Add a gambling block on your bank card so new deposits are refused.
7. Call the National Gambling Helpline on 0808 8020 133 to talk it through, free and at any hour.

Step-by-step help with each tool is in the guide to setting deposit limits.

Safer gambling tools that work alongside bonus offers

The tools below do different jobs. Combining two or three gives more protection than any one on its own.

A reality check is especially useful during wagering, because it shows how long you have been playing when a bonus target has made time slip by. Bank blocks vary from one bank to the next. The Commission also keeps a list of banks offering blocks on its page about blocking gambling transactions (opens in a new tab).

Young adults, stake limits and bonus play

Adults aged 18 to 24 face a lower maximum stake on online slots: £2 a spin since 21 May 2025, against £5 for those aged 25 and over since 9 April 2025. Any bonus max-bet rule sits on top of that legal limit. How the limits are applied is set out under online slot stake limits.

Advertising rules add another layer. Gambling ads must not have strong appeal to under-18s, and people who are or look under 25 cannot be shown gambling in most ads. Those rules shape how bonuses can be promoted, but they do not stop a young adult being offered a bonus once they hold an account. The same warning signs apply at any age.

Where to get help with gambling harm in the UK

Free, confidential support is available every day of the year.

• National Gambling Helpline: 0808 8020 133, run by GamCare, free and open 24 hours a day, with live chat and WhatsApp through GamCare's support page (opens in a new tab).
• NHS Wales Helpline: 0808 2819 265.
• NHS gambling clinics in England accept self-referrals; the NHS gambling addiction page (opens in a new tab) explains how to get help.
• Gamblers Anonymous runs peer support meetings across England, Wales and Ulster.
• GAMSTOP for blocking all GB-licensed online gambling; our guide to bonuses and GAMSTOP explains what happens to offers when you sign up.

Our safer gambling hub brings these services together with links to every tool on this page.

18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: set a budget. Free, confidential help: National Gambling Helpline 0808 8020 133.