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How to compare UK casino bonuses fairly

31 March 2026 · 9 min read

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Headline figures like “200% up to £1,000” grab attention but say little about real value. Wagering rules, game weighting, time limits, and cashout caps matter more.

Why big numbers mislead

A £200 match with 20× wagering and no cap may offer better practical value than a £1,500 offer with 60× playthrough and a £100 max withdrawal — even though the second looks bigger on the banner.

Check wagering first

35× on a £50 bonus means £1,750 in qualifying bets. Under 25× is player-friendly; above 40× is tough. See whether the multiplier applies to the bonus only or bonus plus deposit.

Game weighting and time limits

Slots usually count 100%; tables may count 10–20%. Short expiry windows (7 days) make large bonuses harder to clear than longer ones (30 days).

Our effective value score

We rank offers by expected return after all conditions — not headline size. See our rankings table for the latest scores.