31Bet Casino Welcome Bonus UK 2026
Signing up at 31Bet Casino unlocks a three-deposit package worth up to £450 plus 150 free spins. The 31Bet Casino welcome bonus matches your first deposit at 100% up to £200, then adds 50% reloads on your second and third deposits. A 35x wagering requirement sits on every bonus balance, and each stage needs a £20 minimum deposit.
I have claimed plenty of packages like this, and the headline figure tells you little. A £100 first deposit earns £100 in bonus funds, and you then need £3,500 in bets before you can withdraw any of it. The wagering maths, the 7-day clock and the payment method you choose decide whether the £450 ever reaches your bank account.
What the 31Bet Casino Welcome Offer Includes
The 31Bet Casino welcome offer splits across three deposits, and the match rate drops after the first one.
| Deposit | Match | Max bonus | Free spins | Min deposit | Wagering |
|---|---|---|---|---|---|
| 1st | 100% | £200 | 50 | £20 | 35x |
| 2nd | 50% | £150 | 50 | £20 | 35x |
| 3rd | 50% | £100 | 50 | £20 | 35x |
| Total | n/a | £450 | 150 | £60 | 35x each |
Put £200 in on your first deposit and you start with £400 to play, plus 50 free spins. That 100% rate is the best in the package. If you plan to deposit £200 across the whole offer anyway, you earn more bonus money by loading it all at stage one than by splitting it into three £66 deposits.
Finish the first bonus before you make the second deposit. Stacking a new bonus on top of an unfinished one muddies the wagering count, and you will struggle to see how much you still owe.
Claiming the 31Bet Casino Sign Up Offer
The 31Bet Casino sign up offer takes about five minutes to claim if your documents sit ready on your phone.
- Register with your legal name, date of birth, postcode and email address. The name must match your ID, or your first withdrawal will stall.
- Click the confirmation link 31Bet Casino sends to your inbox. Check your spam folder if nothing arrives within five minutes.
- Upload a passport or driving licence, plus a bank statement or utility bill less than three months old. Do this before you deposit, so verification does not hold up your cash-out later.
- Open the cashier and choose a payment method. Visa and Mastercard debit cards, PayPal, Open Banking transfers and Pay by Phone are the usual UK options. Credit cards are banned for gambling in the UK. Read the bonus terms to see whether your chosen method qualifies, because casinos often exclude e-wallets from welcome promotions.
- Deposit at least £20 and tick the bonus opt-in box, or type your code if the cashier shows a code field.
- Check your account page for the bonus balance and the 50 free spins before you place a bet. If either is missing, message live chat first and play afterwards.
The 31Bet Casino Welcome Bonus Code and New Customer Offer
Wagering Maths on the 31Bet Casino Welcome Bonus
The 35x requirement multiplies the bonus amount. Your deposit stays outside the calculation.
| Bonus received | Wagering | Total bets needed |
|---|---|---|
| £50 | 35x | £1,750 |
| £100 | 35x | £3,500 |
| £150 | 35x | £5,250 |
| £200 | 35x | £7,000 |
At £1 a spin, £3,500 means 3,500 spins. You get 7 days, which works out at 500 spins a day, or about an hour of play. Slots count 100% towards the requirement. Blackjack and roulette count 10%, and live dealer tables count 5%, so £100 on live blackjack moves your requirement by £5.
While a bonus runs, 31Bet Casino caps your stake at £5 per spin. Go over that limit and the casino can void the bonus and your winnings with it.
Free Spins and Their Own Wagering
The free spins arrive in three batches of 50. At £0.10 a spin, each batch carries £5 of stake value. A slot with 96% RTP returns about £4.80 on that, and 35x on £4.80 means £168 in extra bets before you can withdraw the winnings. Play each batch within 72 hours of the credit, because unused spins expire.
Who Should Take It
Take the package if you play slots and can spare an hour a day for a week. The 35x requirement is manageable on a £100 deposit, and the 100% first match gives you a real cushion.
Skip it if you prefer live blackjack or roulette. At 5% to 10% contribution, £3,500 of wagering becomes £35,000 to £70,000 of table bets. You also lose the right to withdraw freely while a bonus is active, so a deposit without the opt-in suits you better if you want to cash out whenever you like.
Safer Gambling
You must be 18 or over to register. Check the footer of the 31Bet Casino site for a UKGC licence number before you deposit, and set a deposit limit in your account settings before you claim anything. GamStop at gamstop.co.uk blocks you from UKGC-licensed sites in one registration. BeGambleAware (begambleaware.org) offers free guidance, and the National Gambling Helpline on 0808 8020 133 runs free, 24 hours a day.