Short answer: For a deposit under £50, 10bet's 100% match gives more bonus. Over £50, Casumo's 50% up to £100 does, with a longer deadline.
First deposit bonuses
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Casumo ★ 4.2 out of 5
50% bonus up to £100
10x wageringMatched deposit
- Wagering
- 10x bonus
- Minimum
- £20
- Time limit
- 7 days to complete wagering
- Worked value
- Deposit £200, get £100 bonus
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
10bet Casino ★ 3.8 out of 5
100% bonus up to £25
10x wageringMatched deposit
- Wagering
- 10x bonus
- Minimum
- £10 (check at sign-up)
- Time limit
- 3 days to complete wagering
- Worked value
- Deposit £25, play with £50
Significant terms: 18+. New UK customers only. Select the casino welcome bonus at sign-up and make your first deposit within 7 days. 100% bonus up to £25. Wager the bonus 10x on slots within 3 days. Maximum bonus winnings £1,000. Bonus is not redeemable. Full T&Cs apply. BeGambleAware.org
What each deposit earns
| Deposit | 10bet bonus | 10bet wagering | Casumo bonus | Casumo wagering |
|---|
| £10 | £10 bonus | Stake £100 in 3 days | Nothing | Needs £20 or more |
|---|
| £20 | £20 bonus | Stake £200 in 3 days | £10 bonus | Stake £100 in 7 days |
|---|
| £25 | £25 bonus | Stake £250 in 3 days | £12.5 bonus | Stake £125 in 7 days |
|---|
| £50 | £25 bonus | Stake £250 in 3 days | £25 bonus | Stake £250 in 7 days |
|---|
| £100 | £25 bonus | Stake £250 in 3 days | £50 bonus | Stake £500 in 7 days |
|---|
| £200 | £25 bonus | Stake £250 in 3 days | £100 bonus | Stake £1000 in 7 days |
|---|
Related: high roller bonuses, sticky and non-sticky bonuses and Casumo vs 10bet.
What is locked and what is not
Your deposit is cash. The bonus sits beside it and cannot be withdrawn until the wagering is complete. Withdraw early and the bonus, with any winnings from it, is forfeited.
First deposit, free spins
If you would rather not have a locked balance, Coral, Ladbrokes and PlayOJO give wager-free spins on a first deposit: see free spins no wagering.
By deposit size and match rate
£5 deposit, £10 deposit, £20 deposit, £50 deposit; 50% match, 100% match, 200% match.
Which to choose
Small deposit and a few free evenings this week: 10bet. Larger deposit and a week to play: Casumo. Not keen on a locked balance at all: one of the three spins offers. Whichever you pick, a debit card is the safe way to make the deposit, because e-wallets are excluded from some welcome offers.
Related bonus guides: No deposit bonus UK, No wagering bonus UK, Low wagering bonus UK and Cashback bonus UK.
More on deposit bonuses: £5 deposit bonus UK, £10 deposit bonus UK, £20 deposit bonus UK and £50 deposit bonus UK.
Offer terms dated 5 October 2026, from each casino's published conditions. How we check and rate. 18+. Free help: National Gambling Helpline 0808 8020 133 or safer gambling.
