Before You Spin
Calculate the expected cost of your planned session using the <a href="/tools/session-ev-calculator">session EV calculator</a>. Decide what you are willing to lose. Set that as your session budget. If your expected loss exceeds what you are comfortable losing, reduce your stake or shorten your session. The maths come first — emotion comes second.
The Pre-Commitment Principle
Decide your loss limit BEFORE you start playing. Not during play. Not after a losing streak. Before. Write it down. Set it in the casino's deposit/loss limit tools. This is the single most effective <a href="/responsible-gambling">responsible gambling</a> practice because it removes in-the-moment decision-making from the equation.
Setting a Loss Limit Using RTP
Your expected loss = total wager × house edge. If you plan to play 200 spins at £0.50 on a 94% game: expected loss = £100 × 6% = £6. Set your loss limit at 2-3x the expected loss (£12-18) to account for variance. If you hit the limit, stop. The maths have played out worse than average, and continuing does not improve the probability of recovery. See <a href="/guides/what-is-rtp">what is RTP</a> for the underlying calculation.
The Stop-Loss Is Not a Prediction
Hitting your loss limit faster than expected is not evidence that the game is "due" to pay. Each subsequent spin has the same negative expected value as every spin before it. The rational response to hitting a loss limit is stopping, not increasing stakes. The gambler's fallacy is the most expensive cognitive bias in casino play.
Win Limits Are Optional But Useful
If you hit a significant win (3-5x your session budget), consider stopping. The house edge ensures that continued play after a large win will, on average, erode that win back toward the expected loss. Locking in a profit is not required by maths but is supported by behavioural psychology — it prevents the "I won £200 and then played it all back" experience. The <a href="/guides/best-slots-20-pound-budget">£20 budget guide</a> covers practical session sizing.
The Emotional Check
If you feel angry, frustrated, or desperate while playing, stop regardless of your budget remaining. These emotional states correlate with chasing behaviour — increasing stakes, switching to higher-volatility games, or depositing beyond your pre-set budget. RTP does not change when you are angry. Your decision-making does. The <a href="/guides/autoplay-responsible-gambling">autoplay guide</a> covers tools that help enforce pre-commitments during a session.
Gambling can be addictive. Please play responsibly. UK players experiencing problems can self-exclude via GAMSTOP or contact GamCare.
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