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Casino bonuses look generous on the banner and rather different in the terms box. Comparing them properly is less about the headline number and more about the conditions attached to it. UK-licensed operators must follow strict advertising rules, yet the small print still varies enormously between brands, and that variation is where real value is won or lost. This guide breaks the comparison down into the figures that actually matter. Read more about this at full guide.

Under Gambling Commission rules, all significant conditions must appear alongside the promotion , not buried three clicks deep. That includes wagering requirements, time limits and minimum deposits. Treat every offer as a contract and read it as one, because that is precisely what you are signing up to.

Decoding the Wagering Requirement

The wagering requirement, or playthrough, is the number of times you must stake a bonus before withdrawing anything won from it. A 40x requirement on a £10 bonus means £400 of qualifying stakes. Industry averages sit somewhere between 30x and 45x, so anything at 35x or below is competitive and anything beyond 50x deserves scepticism.

Check whether the multiplier applies to the bonus alone or to bonus plus deposit. A 30x requirement on a £10 bonus and £10 deposit equals £600 of play , double what the headline figure suggests. That distinction changes the maths more than the percentage ever will.

Contribution rates matter just as much. Many contracts state that slot games count 100% toward wagering, while table games and live casino titles contribute 10% or, in some cases, nothing at all. A low-looking 25x requirement becomes far steeper if your favourite game contributes a tenth of each stake.

Also look for maximum bet clauses during wagering. A common cap is £5 per spin or hand, and breaching it can void the bonus and any winnings attached. These are the clauses that catch players out, so read them before you deposit, not after.

Time Limits, Caps and Eligibility Clauses

Bonus expiry periods range from seven days to thirty, and short windows paired with high wagering are a red flag. A £10 bonus with a 40x requirement and a seven-day limit demands roughly £57 of qualifying stakes per day , realistic for some players, punishing for others. Compare the deadline against your actual playing habits.

Maximum win caps are frequently overlooked. Many contracts limit bonus winnings to a fixed sum, often between £100 and £500, regardless of how much you accumulate. A 500% match sounds thrilling until you discover the cap trims any large win back to a modest payout.

Eligibility rules deserve a scan too. Most welcome packages are restricted to new customers aged 18 or over, one per household or IP address, and funded with a minimum deposit , typically £10. Payment method restrictions often apply as well, with some operators excluding e-wallets from qualifying deposits.

• Wagering multiplier and what it applies to (bonus only, or bonus plus deposit)
• Game contribution percentages across slots, table games and live dealer titles
• Maximum bet permitted while wagering is active
• Expiry window measured against your weekly staking
• Maximum win cap and minimum qualifying deposit
• Payment methods excluded from eligibility

Comparing Real Value Across Offers

Strip away the marketing and compare offers using a single metric: the effective cost of each £1 of bonus, calculated as wagering requirement divided by bonus value. A £10 bonus at 35x costs £350 of play; a £20 bonus at 45x costs £900. The larger headline bonus is not automatically the better deal, and the table below illustrates why.

Offer A demands the least play for the money and carries a reasonable cap. Offer B looks twice as generous but requires more than double the staking and caps winnings lower. Offer C sits in the middle on playthrough but offers the strongest ceiling , useful if you chase bigger wins rather than frequent smaller ones.

Finally, weigh the licence behind the offer. Gambling Commission-licensed sites must ring-fence customer funds and participate in dispute resolution schemes, protections that offshore contracts do not always replicate. Whether you play with a UK operator or a non-Gamstop brand, the comparison method stays identical: verify the licence, read the clauses, do the arithmetic, and only then decide whether the bonus is genuinely worth having. Gamble responsibly , set deposit limits before you claim anything.