- A welcome bonus is a one-off sign-up offer for new customers – free spins, bonus cash or both.
- Free spins welcome offers suit slots players; matched deposit bonuses suit players who want bonus cash.
- Casumo's £100 welcome bonus is a 50% match, so you need to deposit £200 to receive the full £100.
- UK welcome bonus wagering cannot exceed 10x.

Only deposit what you would have deposited anyway. Chasing the maximum bonus can mean playing with more money than you planned.
Related bonus guides
What is a casino welcome bonus?
A casino welcome bonus – also called a sign-up bonus or new customer offer – is a one-off promotion for players opening their first account with a casino. It is designed to give you extra value on your first deposit, and it is normally limited to one per person, household and payment method.
This month's welcome offers compared
| Casino | Welcome offer | Key terms | Wagering |
|---|---|---|---|
| Coral Casino | Bet £10 get 100 FREE Spins! | 100 × 10p spins | None on spin winnings |
| Ladbrokes | Bet £10 get 500 FREE Spins! | 50 spins a day for 10 days | None on spin winnings |
| 10Bet Casino | 100% Matched Bonus! | 100% up to £25 | 10x bonus |
| Casumo | £100 Welcome Bonus! | 50% match up to £100 | 10x bonus |
| PlayOJO | 80 FREE Spins for New Customers! | On Big Bass Bonanza | None on spin winnings |
How a first deposit bonus works
With a matched first deposit bonus, the casino adds a percentage of your deposit as bonus funds, up to a maximum amount. The match percentage and the cap together decide how much you receive.
| Offer | Your deposit | Bonus funds | Wagering needed |
|---|---|---|---|
| 10Bet – 100% up to £25 | £10 | £10 | £100 (10x) |
| 10Bet – 100% up to £25 | £25 | £25 | £250 (10x) |
| Casumo – 50% up to £100 | £20 | £10 | £100 (10x) |
| Casumo – 50% up to £100 | £200 | £100 | £1,000 (10x) |
Note that 10Bet's bonus must be wagered within 3 days and has a maximum bonus win of £1,000, while Casumo limits stakes to £5 per bet while a bonus is active.
Free spins welcome offers
Free spins sign-up bonuses are the most popular new customer offers in the UK. They are easy to understand and, at Coral, Ladbrokes and PlayOJO, come with no wagering on winnings.
Choosing the right new customer offer
- Mostly play slots? A free spins welcome bonus usually gives the best value for a £10 deposit.
- Want the simplest terms? Pick a no wagering offer – winnings are paid as cash.
- Prefer more playing time? A matched deposit bonus gives you bonus funds to spread across more games.
- Depositing more than £50? Casumo's 50% match up to £100 rewards larger first deposits.
Who can claim a welcome bonus?
Welcome bonuses are for new customers aged 18 or over who live in the UK. Some offers exclude certain payment methods for the qualifying deposit – often e-wallets or prepaid cards – and PlayOJO's offer excludes Northern Ireland. Check the significant terms beside each offer.
Welcome bonus mistakes to avoid
- Missing the opt-in step – Casumo and 10Bet both require you to choose the bonus.
- Depositing less than the minimum needed for the full bonus.
- Letting your bonus or spins expire.
- Ignoring the maximum bet rule while wagering.
Want the smallest qualifying deposit? See low deposit casinos.
Playing on your phone? See mobile casino bonuses.
Frequently asked questions
What is the best casino welcome bonus in the UK?
It depends on how you play. For slots, Ladbrokes offers up to 500 no-wagering free spins for a £10 stake. For bonus cash, Casumo offers 50% up to £100 and 10Bet matches your first deposit 100% up to £25.
How do I claim a welcome bonus?
Sign up through the offer link, opt in if required, make your first deposit with an eligible payment method and complete any qualifying stake.
Can I withdraw a welcome bonus?
Bonus funds must be wagered (up to 10x) before winnings can be withdrawn. Winnings from no wagering free spins are paid as cash straight away.
Can existing customers claim welcome bonuses?
No. Welcome bonuses are only for new customers. Existing players can claim ongoing promotions such as reload bonuses and daily free spins.
What happens if I withdraw before finishing the wagering?
Most casinos remove any remaining bonus funds and associated winnings. Your own deposited cash is always yours to withdraw.