Judged on our welcome offer score among the two matched bonuses.
Ties are declared, with the tie-break named.
VerdictThe best online casino for a deposit bonus is Casumo. Two of the five give bonus money matched to a deposit.
Best for a deposit bonus
Casumo
Two of the five give bonus money matched to a deposit. Casumo's scores higher, 7.0 to 6.5: it has the larger ceiling, £100, and allows seven days for the 10x wagering where 10bet allows three.
How we judged it
This award is decided on our welcome offer score among the two matched bonuses.
10bet Casino. 10bet matches 100% up to £25, so for deposits of £10 to £25 it gives more bonus than Casumo's 50%.
When to choose something else
If you would rather not wager at all, the three spins offers pay winnings as cash.
Rate, ceiling and time
A matched bonus has three numbers: the match rate, the ceiling and the time allowed. Casumo is 50%, £100 and seven days. 10bet is 100%, £25 and three days. The higher rate wins on small deposits, the higher ceiling on large ones, and the longer window makes either easier to complete.
A worked example
Deposit £50 at each. Both give £25 and both need £250 of stakes. Casumo allows a week, about £36 a day. 10bet allows three days, about £83 a day.
What to check yourself
Multiply the bonus by ten for the stakes needed, then divide by the days allowed. If the daily figure is more than you would normally play, deposit less.
Significant terms: 18+. New customers only. Opt-in required. 50% deposit bonus up to £100 on first deposit. Minimum deposit £20. 10x wagering on the bonus amount. Maximum bet or spin £5. Bonus valid for 7 days. Game, play and payment method restrictions apply. Full T&Cs apply. BeGambleAware.org
Read the Casumo reviewLicence: Recro Limited, UKGC account 61549. Offer checked 5 October 2026.
Scores are desk-based: they draw on each casino's published terms, the public register and recent independent reviews, not on real-money accounts. Where scores tie we say so and name the tie-break. Offer terms dated 5 October 2026. How we score. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What is the best online casino for a deposit bonus?
Casumo, on our welcome offer score among the two matched bonuses.
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