UK Gambling Sites: The Complete Guide to Betting in Britain

The Shape of UK Gambling in 2026

Britain doesn't just allow online gambling — it regulates it harder than almost any country on earth. The UK gambling market generated over £14 billion in gross gambling yield in the most recent reporting year, making it one of the largest regulated markets in the world. More than half of that figure now comes from remote — online and mobile — gambling, a shift that has been accelerating since the mid-2010s and shows no sign of reversing. The Gambling Commission's industry statistics consistently confirm the trend: the high street betting shop is in structural decline, while the smartphone in your pocket has become the primary betting terminal for millions of British punters.

The landscape in early 2026 looks fundamentally different from even two years ago. The government's White Paper on gambling reform, published in April 2023, set in motion the most significant wave of regulatory change since the Gambling Act 2005 came into force. The consequences are now tangible. Online slot stake limits — capped at £5 per spin for players aged 25 and over, £2 for those aged 18 to 24 — came into effect in 2024. A mandatory gambling levy on operators, replacing the voluntary system that the industry had gamed for years, began collecting from October 2025 and is projected to raise roughly £100 million annually for research, prevention, and treatment of gambling harm. Affordability checks, which require operators to verify that a customer's gambling is within their financial means once net deposits exceed £150 within 30 days, are now a routine part of the regulated experience.

These aren't cosmetic adjustments. Stake limits directly reduce the maximum loss rate on the most popular casino product. The levy redirects operator revenue into public health infrastructure. Affordability checks create a friction point designed to catch harmful spending patterns before they compound. For the average punter, the practical effect is a market that asks more questions, imposes more limits, and offers slightly less promotional firepower than the freewheeling landscape of 2019. Whether that represents progress or overreach depends on who you ask — but the direction is unambiguous.

The operator landscape has consolidated alongside these reforms. The Gambling Commission licences over 2,000 operators, though the consumer-facing market is dominated by a handful of major groups — Flutter (Paddy Power, Betfair, Sky Bet), Entain (Ladbrokes, Coral), bet365, and the Evoke portfolio (William Hill, 888). Smaller operators face a regulatory cost base that favours scale, meaning the market is increasingly concentrated at the top.

Mobile betting now accounts for the majority of online gambling activity. Smartphones are the most common device for online gambling among UK adults, ahead of laptops and desktops. The shift to mobile has reshaped operator product design: bet builders, quick-bet features, in-play betting with live streaming, and one-tap deposit flows are all responses to a user base that expects to place a bet in under ten seconds. Push notifications for odds boosts and in-play markets have become a primary marketing channel, though tightened advertising rules now require responsible gambling messaging to accompany every promotional notification.

This guide exists because the market's complexity requires a map. The number of licensed sites, the density of bonus terms, and the volume of regulatory change mean that choosing where to gamble online in the UK is an informed decision — or it should be. What follows covers licensing, site types, how to evaluate quality, how odds work, what the recent regulatory reforms mean, and what tools exist when gambling stops being entertainment.

What Makes a Gambling Site Legal in the UK

Every legal gambling site in Britain carries a number — and that number is checkable in under thirty seconds. The number is a remote operating licence issued by the UK Gambling Commission, and it is the single non-negotiable requirement for any website or app that wants to legally offer gambling services to consumers in Great Britain. Without it, the site is operating illegally, and any punter using it has no regulatory protection whatsoever.

The licensing framework sits on the Gambling Act 2005, which replaced the outdated 1968 legislation and established three licensing objectives that underpin every rule the UKGC enforces: preventing gambling from being a source of crime or disorder, ensuring that gambling is conducted fairly and openly, and protecting children and vulnerable people from gambling harm. Every condition attached to a UK licence traces back to one of these three objectives. When the Commission fines an operator for misleading bonus terms, that's the fairness objective. When it mandates age verification before a first bet, that's child protection. When it requires suspicious transaction reporting, that's the crime prevention objective.

The licence requirement applies regardless of where the operator is physically based. A company headquartered in Gibraltar, Malta, or the Isle of Man that accepts bets from British customers must hold a UKGC remote operating licence. This extraterritorial reach is what gives the UK framework its practical power — it doesn't matter where the server sits if the customer is in Britain. Operators that serve UK players without a licence are committing a criminal offence, and the Commission maintains an illegal operators list alongside its public register of licensed businesses.

Verification takes seconds. The UKGC's public register is searchable by operator name, licence number, or trading name. Every licensed site is required to display its licence number and a link to the register in its footer or terms and conditions. If you can't find a licence number on the site, that alone is a disqualifying signal. The register shows not just whether the licence is active but also what activities it covers — casino, betting, bingo, poker — and the fund protection level the operator has declared.

Fund protection is one of the most practically important elements of UK licensing. Operators must declare whether they protect customer funds at a basic, medium, or high level. At the basic tier, your deposits sit in a separate account but you're a general creditor in insolvency. At the medium tier, funds are held in a trust or by an independent party. At the high tier, funds are fully ring-fenced — your money is returned in full even if the operator collapses. The tier is disclosed on the UKGC register and should factor into any decision about where to deposit significant sums.

Offshore unlicensed sites exist and advertise aggressively. They can offer things licensed operators cannot — credit card deposits, no affordability checks, unrestricted stake limits. What they cannot offer is any consumer protection: no fund segregation, no dispute resolution through the regulator, no responsible gambling tools, no recourse if they refuse to pay your winnings.

Types of UK Gambling Sites

Sports Betting Sites

The bookmaker is the backbone of British betting. Sports betting sites — also called bookmakers, bookies, or sportsbooks — are platforms where you wager on the outcome of real-world events at fixed odds. You see the price, you decide whether to take it, and if your selection wins, the payout is calculated based on those odds. The model is straightforward: the bookmaker sets odds that include a built-in margin (the overround), which is how they make money regardless of which outcomes hit.

The range of sports covered by a major UK bookmaker is vast. Football dominates, accounting for the largest share of betting turnover, with markets spanning the Premier League, EFL, Champions League, and dozens of international leagues. The 2025/26 Premier League season generates thousands of individual markets per matchweek — match result, both teams to score, correct score, goalscorer, corners, cards, and bet builder combinations. Horse racing remains the second-largest sport by turnover, with daily coverage from UK racecourses supplemented by Irish and international fixtures. Tennis, cricket, golf, rugby, darts, and boxing round out the core offering.

In-play betting — wagering on events as they happen, with odds adjusting in real time — has reshaped the product. For football, you can bet on the next goalscorer, the next corner, or the match outcome at halftime with odds that shift with every attack. Bet builders, which allow you to combine multiple selections from a single event into one wager, have become a marquee feature. Cash out — settling a bet early for a guaranteed return — gives punters a level of control that didn't exist a decade ago. These features are standard on every major UK bookmaker, though the quality of execution varies.

Online Casino Sites

Casinos run on margins, not odds. Where a bookmaker prices individual events and accepts the variance, a casino offers games where the mathematical edge is baked into the rules. Every slot, every roulette wheel, every blackjack table has a house edge — the percentage of every pound wagered that the casino expects to retain over time. The player can win in the short run, but the maths favour the house across every game, every session, at scale.

UK online casinos offer three broad categories: slots, table games, and live dealer. Slots are the revenue engine — thousands of titles from studios like Pragmatic Play, NetEnt, and Play'n GO, each with a published return-to-player (RTP) percentage that tells you the theoretical long-run payback. An RTP of 96% means the game returns £96 for every £100 wagered on average across millions of spins — not in any individual session. Table games like blackjack and roulette offer lower house edges (under 1% for optimal blackjack strategy), while live dealer games stream real croupiers from studios, combining the convenience of online play with something closer to the in-person experience.

Casino sites are regulated under the same UKGC framework as bookmakers but face additional requirements around game fairness. Every game's RNG must be independently tested and certified, and RTP must be published. The new stake limits on online slots — £5 for over-25s, £2 for 18-to-24s — represent the most direct regulatory intervention into gameplay mechanics in UK history.

Betting Exchanges

On an exchange, you're not betting against the house. You're betting against other punters. The exchange platform matches backers (who think something will happen) with layers (who think it won't), taking a commission on winning bets rather than building a margin into the odds. The result is a fundamentally different pricing structure — one that often delivers better odds than traditional bookmakers, particularly on popular markets with high liquidity.

The concept is straightforward: if you think Manchester City will beat Arsenal at 1.8, you place a back bet. Another user willing to lay that outcome at 1.8 takes the other side. If City win, the layer pays your winnings minus the exchange's commission (typically 2-5%). If City don't win, you lose your stake to the layer. The exchange never takes a position — it facilitates the trade and clips the ticket.

Lay betting — the ability to bet against an outcome — is what makes exchanges unique. On a traditional bookmaker, you can only back selections. On an exchange, you can act as the bookmaker, offering odds to other users. This opens up strategies like trading (backing at higher odds and laying at lower odds to lock in profit regardless of outcome) and hedging existing positions.

Poker, Bingo and Specialty Sites

Niche doesn't mean unregulated. Poker sites, bingo platforms, lottery portals, and scratchcard sites all require separate UKGC activity permissions and must comply with the same core licensing conditions as bookmakers and casinos. The distinction matters because each product type operates under slightly different rules — poker has specific requirements around player-to-player fund protection, bingo has rules on prize fund calculation, and lottery operators face separate regulatory obligations.

Poker occupies a unique position as the only mainstream gambling product with a significant skill element. In the long run, better players win more — a statement you cannot make about slots, roulette, or bingo. UK-licensed poker sites offer cash games and tournaments, with the operator taking a rake (a small percentage of each pot or tournament entry fee) rather than relying on a house edge. Bingo, by contrast, is fundamentally luck-based but has a strong social component — live chat features and community events are central to the product. National Lottery draws and scratchcards, operated by Allwyn under a UKGC-issued licence, round out the market with the lowest barrier to entry and the widest participation base.

How to Evaluate a UK Gambling Site

Licensing and Safety Checks

Before you deposit a penny, check three things. First: the licence. Go to the UKGC public register and confirm the operator holds an active remote operating licence. The licence number should be displayed in the site's footer — if it isn't, walk away. Second: the padlock. Every legitimate gambling site uses SSL/TLS encryption, visible as a padlock icon in your browser's address bar. Without it, any data you enter — including payment details — is transmitted in plain text. Third: the fund protection level. The UKGC register shows whether the operator protects customer funds at a basic, medium, or high tier. If you plan to hold a balance on the site, this matters more than most punters realise.

Unlicensed sites often lack a visible licence number, offer credit card deposits (banned in the UK since 2020), promise no-verification gambling, or display a licence from a different jurisdiction — Malta, Curaçao, Antigua — without holding the UK-specific licence required to serve British customers.

Odds Quality and Market Depth

Odds aren't decoration — they're the product. The price a bookmaker offers on any selection determines the value of the bet. Two bookmakers can list the same football match, the same teams, the same kick-off time — and one offers 2.10 on the home win while the other offers 2.00. Over hundreds of bets, that difference compounds into a meaningful gap in returns. If you're serious about betting, comparing odds across multiple sites before placing a wager isn't optional — it's basic practice.

Market depth refers to the range of betting options within a single event. A shallow bookmaker might offer match result, BTTS, and over/under goals on a Premier League fixture. A deep bookmaker adds correct score, goalscorer, corners, cards, player shots, and bet builder combinations. Depth matters because it determines whether the platform can accommodate the specific bet you want to place — and it signals how seriously the operator invests in its pricing infrastructure.

The overround — the bookmaker's built-in margin across all outcomes in a market — is the clearest measure of odds quality. In a perfectly fair two-outcome market, each side would be priced at 2.0 (implying 50% each, summing to 100%). In practice, a bookmaker might price them at 1.91/1.91, implying 52.4% + 52.4% = 104.8%. That extra 4.8% is the overround — the operator's edge. Major UK bookmakers typically run overrounds of 103-106% on premier football markets, while niche markets and lower leagues can see 108-115%.

Bonuses: What the Terms Actually Mean

A £50 bonus with 40x wagering is a worse deal than a £10 bonus with 3x. That isn't intuitive, which is exactly why bonus terms exist in their current form — to make headline numbers look generous while the conditions quietly claw back the value. Understanding what a bonus actually requires is the single most important skill for any punter who claims promotional offers.

Welcome bonuses — typically a deposit match or free bet on first deposit — are the most common format. The headline is the amount: "Bet £10 Get £30 in Free Bets." The substance is in the terms. Wagering requirements specify how many times the bonus must be bet before withdrawal. Minimum odds thresholds restrict qualifying bets. Time limits (7 to 30 days) set the deadline. Game contribution weighting determines how much each bet type counts: slots usually contribute 100%, table games 10% or less.

The January 2026 UKGC changes that capped wagering requirements at 10x across all licensed operators have improved the value proposition significantly, but the cap does not eliminate the need to read terms. Game contribution rates, maximum cashout limits, and time restrictions still vary between operators and can materially affect whether an offer is worth claiming.

Payment Methods and Withdrawal Speed

How fast you get paid matters more than how fast you can deposit. Deposits on UK gambling sites are nearly always instant — whether you use a Visa debit card, PayPal, Skrill, or Apple Pay. Withdrawals are where the differences emerge. Processing times depend on three factors: the payment method, the operator's internal review process, and whether you've completed identity verification.

Debit cards (Visa, Mastercard) are the most widely used method, but cashouts typically take 1-3 business days after approval. PayPal has become the preferred method for speed — withdrawals usually process within 24 hours, often within a few hours. Skrill and Neteller offer similar speeds but are excluded from welcome offers by many operators. Bank transfers are the slowest option at 3-5 business days. Credit cards have been banned for gambling transactions since April 2020.

The fastest way to accelerate withdrawals is to complete KYC (Know Your Customer) verification before you request a cashout. Every UKGC-licensed site will require identity verification — passport or driving licence, proof of address, and sometimes source-of-funds documentation. Submitting these documents at registration rather than at first withdrawal eliminates the most common delay.

Understanding Betting Odds in Practice

Odds are a price — and like any price, they can be good or bad. Before you evaluate any gambling site or compare two bookmakers, you need to understand what odds represent. They are not predictions. They are not probabilities. They are the bookmaker's offer — the price at which they'll pay you if your selection wins. And like any retail price, the bookmaker builds a profit margin into the number.

In the UK, fractional odds are the traditional format. Odds of 5/1 mean you win £5 for every £1 staked, plus your stake back — a total return of £6 on a £1 bet. Odds of 1/4 mean you win 25p for every £1 staked — a total return of £1.25. The first number represents potential profit; the second represents the stake. Fractional odds are familiar but awkward for comparison — which is better value, 11/8 or 6/4? You can work it out, but decimal odds make it immediate.

Decimal odds express the total return per pound staked. Fractional 5/1 becomes decimal 6.0. Fractional 1/4 becomes 1.25. The conversion formula is simple: divide the first number by the second and add 1. So 11/8 becomes (11 / 8) + 1 = 2.375, and 6/4 becomes (6 / 4) + 1 = 2.50. Now the comparison is instant — 6/4 offers a higher return per pound. Decimal format also makes it trivial to calculate returns: multiply the decimal odds by your stake. A £10 bet at 2.50 returns £25. Every major UK bookmaker lets you switch between fractional and decimal in the settings.

The real power of understanding odds comes when you convert them to implied probability — the likelihood the odds suggest for the event occurring. The formula is: implied probability = 1 / decimal odds. At decimal odds of 2.0, the implied probability is 1 / 2.0 = 50%. At 4.0, it's 25%. At 1.50, it's 66.7%. This matters because if your own assessment of a horse's chance of winning is 40%, and the bookmaker's implied probability is 25% (decimal 4.0), you're looking at a value bet — the odds are paying more than the probability justifies. Value betting is the only consistently rational approach to long-term profitability in sports wagering.

Now here's where the bookmaker makes money. In a fair two-outcome market — say a tennis match — each player priced at 2.0 would imply exactly 50% for each, totalling 100%. But bookmakers don't price at 2.0/2.0. They price at, say, 1.91/1.91. The implied probabilities become 52.4% + 52.4% = 104.8%. That extra 4.8% is the overround — the bookmaker's margin. The higher the overround, the worse the value for the punter. It means the combined implied probabilities exceed 100%, which is mathematically impossible for actual outcomes and represents the cut the bookmaker takes from every market.

Understanding overround is the tool that lets you compare bookmakers objectively. A site offering 103% overround on Premier League matches is materially better value than one at 108%. Over a season of regular betting, the difference in returns is substantial. Odds comparison tools aggregate prices from multiple bookmakers in real time, letting you find the best price on any selection. The odds are the product, and the overround is the markup. Shop accordingly.

The Regulatory Shift: What Changed in 2023-2025

The 2023 White Paper didn't just tweak the rules — it rewired the relationship between bookmaker and punter. Published in April 2023 under the title "High Stakes: Gambling Reform for the Digital Age," the government's review of the Gambling Act 2005 was the first comprehensive reassessment of UK gambling law in nearly two decades. The reforms it initiated have been rolling out in phases since, and the cumulative effect on the day-to-day experience of using a UK gambling site is significant.

The most visible change for casino players is the online slot stake limit. Since the limits came into effect in 2024, no UKGC-licensed online slot can accept a stake higher than £5 per spin for players aged 25 and over, or £2 per spin for players aged 18 to 24. The age-tiered structure was a deliberate intervention based on data showing that younger adults were disproportionately represented among those experiencing gambling harm. The cap is enforced at the game level — operators cannot circumvent it through side bets, turbo spins, or feature buys. For context, before the cap, some online slots accepted stakes of £100 or more per spin.

The mandatory gambling levy represents the most significant structural reform. For years, UK operators contributed to gambling research, education, and treatment through a voluntary system — and the amounts they contributed were, by common consensus, inadequate relative to the harm their products generated. The mandatory levy, collecting from operators since October 2025, replaces this voluntary arrangement with a statutory obligation. The levy is projected to raise approximately £100 million annually, funding the National Gambling Helpline, NHS treatment clinics, academic research programmes, and prevention initiatives. The money comes from operators' gross gambling yield — not from punters directly — though whether it ultimately affects odds margins or promotional generosity is a matter the market is still pricing in.

Affordability checks are the reform that most directly affects regular bettors. Operators must conduct financial risk assessments when a customer's net deposits reach £150 within a rolling 30-day period. At this threshold, checks are typically light-touch — an automated scan against publicly available data. At higher thresholds, more intensive checks may be triggered, potentially requiring evidence of income. The system targets harmful spending patterns before they escalate, though it has drawn criticism from punters who resent justifying their spending, and from operators who argue the thresholds are too low to meaningfully target problem gambling while broadly affecting recreational customers.

Marketing restrictions have tightened in parallel. The whistle-to-whistle ban on gambling advertising during live sport has been supplemented by stricter rules on digital marketing. Bonus terms must be displayed prominently at the point of offer, and the language used in promotions must be clear and non-misleading. The Advertising Standards Authority has increased enforcement activity, and the Gambling Commission has made marketing compliance a priority in licence reviews.

A statutory gambling ombudsman, intended to centralise dispute resolution between operators and customers, was proposed in the White Paper and remains under development. Currently, unresolved complaints go to alternative dispute resolution providers approved by the Commission, but the system is fragmented — different operators use different ADR services. A single ombudsman would streamline the process and carry more weight.

The collective impact is a market meaningfully more restrictive than the one before the White Paper. Stake limits reduce maximum loss rates. The levy redirects revenue to public health. Affordability checks create friction for high-frequency depositors. None of these measures eliminates risk — gambling remains mathematically negative for the player — but the framework is designed to reduce the velocity at which harm accumulates.

Responsible Gambling: Tools That Actually Work

Deposit Limits and Reality Checks

The single most effective tool is the one you set before your first bet. Every UKGC-licensed gambling site is required to offer deposit limits — daily, weekly, and monthly caps that prevent you from depositing more than a pre-set amount. Once you set a limit, decreases take effect immediately. Increases require a 24-hour cooling-off period, specifically to prevent the kind of impulsive adjustment that happens when a losing session triggers the urge to chase.

Since 2024, operators have been required to prompt first-time depositors to set a deposit limit during the registration process. The prompt is mandatory — you must actively dismiss it to proceed without setting a limit. This small piece of friction is one of the most effective behavioural interventions in the UKGC's toolkit, because it catches players at the moment they're most receptive to setting boundaries: before they've started gambling.

Reality checks are timed prompts that interrupt your session at intervals you choose — typically 20, 30, or 60 minutes. The prompt shows how long you've been playing, how much you've deposited, and your net position for the session. It forces a pause. Session time limits go further by logging you out automatically when the time expires. Both features are available in the account settings of every licensed site, and both work best when set proactively rather than reactively.

GamStop and Self-Exclusion

GamStop is a lock — not a suggestion. GamStop is the UK's national self-exclusion scheme for online gambling. Registration is free, takes a few minutes, and blocks your access to every UKGC-licensed online gambling site simultaneously. You choose the duration: six months, one year, or five years. Once active, every licensed operator is required to close your accounts, reject new registrations using your details, and cease all marketing communications. The exclusion cannot be reversed during the minimum period — it is, by design, irrevocable until the clock runs out.

GamStop is effective but not without limitations. It covers only UKGC-licensed sites, meaning unlicensed offshore operators are unaffected. It relies on accurate personal details — registering with a different name or address creates gaps in coverage. When the exclusion period ends, removal is not automatic: you must actively request it, and a 24-hour reflection window applies. For land-based venues, separate schemes exist: SENSE for betting and bingo, MOSES for casinos. These operate independently of GamStop.

Support Services: GamCare, BeGambleAware, NHS Clinics

Help is free, confidential, and available right now. If gambling has moved from entertainment to compulsion — if you're spending more than you intend, lying about your betting, or feeling unable to stop — support services exist that are staffed by trained professionals, funded independently of the gambling industry (via the mandatory levy), and accessible without referral or waiting lists for initial contact.

The TalkBanStop programme combines three tools into one approach: GamStop for online self-exclusion, gambling blocking software (such as Gamban) for device-level restriction, and telephone support from the National Gambling Helpline. No single measure is sufficient alone — self-exclusion blocks licensed sites but not unlicensed ones, blocking software covers devices but not new ones, and counselling addresses behaviour but doesn't restrict access. Together, they create overlapping protection.

Reaching out does not require a crisis. The helpline, live chat, and clinic referrals are designed for anyone whose relationship with gambling has shifted — from those who've lost more than they can afford to those who simply notice they're thinking about betting more than they used to. Early intervention is more effective than late intervention. Using these services is not a sign of weakness — it's the most rational response to a product mathematically designed to take more than it gives.

Frequently Asked Questions

The Bet You Place on Yourself

The best bet you'll ever place is the one on your own discipline. Not on a horse. Not on a football match. Not on the spin of a slot reel. The bet that pays off — reliably, repeatedly, without variance — is the decision to engage with gambling on your own terms, with your eyes open and your limits set before the first pound leaves your account.

The UK gambling market in 2026 is safer than it has ever been. Stake limits, the mandatory levy, affordability checks, and tighter marketing rules have materially reduced the speed at which harm can accumulate. The punter who signs up today enters a market where the regulator has intervened in product design, forced operators to fund treatment of the harm their products generate, and mandated deposit limit prompts for every new customer.

But regulation is the floor, not the ceiling. The Gambling Commission can require operators to display responsible gambling tools — it cannot require you to use them. It can cap slot stakes at £5 per spin — it cannot stop you spinning hundreds of times per session. It can mandate affordability checks at £150 — it cannot judge whether that amount is affordable for you specifically. That calculation depends on your income, your expenses, and your honest assessment of whether the money is truly disposable.

Treating betting as entertainment rather than income is not a platitude — it's a survival strategy. The house edge is real. It exists on every bookmaker market (via the overround), every casino game (via the RTP), and every exchange commission. In the long run, across thousands of bets, the mathematical expectation is negative for the player. Individual punters win individual bets, sometimes spectacularly. But the aggregate flows toward the operator. The question is whether you engage with that model on terms that make the entertainment worth the cost.

The punters who come out ahead — meaning those who enjoy the experience without damaging their finances or wellbeing — share common behaviours. They set deposit limits and don't increase them mid-session. They read bonus terms and decline poor-value offers. They compare odds across sites rather than betting out of loyalty to one bookmaker. They complete KYC verification immediately and withdraw winnings promptly. They know where the self-exclusion tools are before they need them — because the time to learn how GamStop works is not the moment you're trying to stop.

The information in this guide — licensing, site types, odds, regulation, bonuses, responsible gambling — is not a guarantee of profit. Nothing in gambling is. It represents the minimum standard of knowledge a UK punter should carry before choosing where to bet. The market demands informed consumers as much as it demands licensed operators. The Commission has built its side of the equation. Your side is understanding how the system works, making deliberate choices within it, and recognising when entertainment becomes something else.

Place your bets if you choose to. Place them on licensed sites with transparent terms. Set your limits before you start. And remember that walking away — from a losing session, from a poor site, from gambling altogether — is always available, always free, and always the right move when the alternative is harm.