updated regularly – latest review: March 2026
100% Deposit Bonus
Expected Value
£39.24
Risk
High Risk
Difficulty
Hard
Time
90 Mins
Important Information
Deposit
£100 Using a debit card
Min bankroll
£10,000
wagering
40x (£8,000)
Additional Information
Group
White Hat Gaming
Offer Details
- Click here to sign up to 21Casino
- Deposit £100 using a debit card. You will receive a £100 casino bonus
- You will then receive a 100% bonus (£100)
- Both your deposit & bonus must be wagered 40x on any eligible game
- Cash is used before bonus funds, but does not count towards the wagering requirements
- We recommend wagering on Opal Fruits using stakes of £3
- Continue playing until you have at least £100 in winnings (& withdraw funds) or you run out of cash
- If you run out of cash, you will then begin playing with bonus funds, so this will count towards the wagering requirements. Continue playing until you either complete the wagering or bust out
About this offer
The 21Casino welcome offer gives new UK customers a 100% deposit bonus up to £100. We rate it Hard difficulty with High Risk and an estimated value of £39.24 — but that value comes with a significant catch. Both your deposit and your bonus must be wagered 40x before you can withdraw anything, which means a total wagering requirement of £8,000 on a £100 deposit.
Is the 21Casino welcome offer worth claiming?
Only for very experienced players with deep pockets. 21Casino sits in our advanced casino offers and the 40x requirement on deposit plus bonus is one of the most demanding structures on the site. It’s a pre-2026 legacy offer — under the new UKGC wagering cap introduced in January 2026, new offers are capped at 10x. The estimated value of £39.24 is achievable in theory, but you’ll need a minimum bankroll of £10,000 and a thorough understanding of how the offer works before you attempt it. If you’re new to casino offers, start with our easy casino offers instead.
What you need to know before claiming the 21Casino welcome offer
Deposit £100 by debit card. You’ll receive a matching £100 bonus. Both your cash and your bonus must be wagered 40x — but note that cash is used first and does not count toward the wagering requirement. Only once your cash runs out does the bonus begin contributing to wagering. We recommend playing Opal Fruits at £3 stakes to work through the requirement efficiently. Before attempting this offer, read our full guide to how wagering requirements work — it’s essential.
Always read the full terms on the 21Casino website before depositing. This offer involves real money gambling. For support with responsible gambling, visit GambleAware.
