Grosvenor Casinos bonus code — September 2026

This promotion is managed by Grosvenor Casinos. New customers only. Not available to players whose first deposit is made via PayPal or Paysafe. To claim, select the welcome offer in the cashier (it will highlight purple), then make a minimum first deposit of £20 or more. Your £40 bonus is credited instantly to your bonus balance, giving you £60 to play with. By claiming this offer you will no longer be eligible for any other welcome offer on grosvenorcasinos.com. The qualifying deposit (£20) plus the bonus (£40) must be wagered 10 times before any winnings can be withdrawn from the bonus balance — total wagering requirement £600 (£20 + £40 × 10). If you hold an active cash balance, all wagers are deducted from that balance first, followed by your bonus balance. When a wager uses a combination of cash and bonus funds, any winnings are credited proportionately. The bonus may only be used on selected games; play on those games counts towards the wagering requirement. The maximum amount that can be converted from bonus to cash is £200. Players have 30 days from the date the bonus is credited to complete the wagering requirement, after which any remaining bonus and associated winnings will be forfeited. The 100 Free Spins are available exclusively on Big Bass Splash. To receive them, players must launch Big Bass Splash; they then have 24 hours from launching the game to click 'Play Now'. Once claimed, Free Spins must be used within 7 days or they expire. Each Free Spin has a value of £0.10 and has no cash value. Any winnings from Free Spins are credited as a bonus and are subject to a 10× wagering requirement, playable on Big Bass Splash. Players using minimal-risk wagering tactics risk forfeiting their bonus, cash prizes and any associated winnings. Grosvenor Casinos reserves the right to void, withdraw, cancel, suspend or amend the promotion where necessary, without prejudice to any participant who has already placed a qualifying bet. This promotion is governed by English law.

Open to new Grosvenor Casinos players aged 18+ who can view the offer in the 'Promos' section of their account. Promotion runs until further notice. Not available to players who open a new account and make their first deposit via PayPal or Paysafe. Select the offer in the cashier, then make a minimum first deposit of £20 to receive a £40 bonus credited instantly to the bonus balance, plus 100 free spins on Big Bass Splash. Claiming this offer renders the player ineligible for any other welcome offer on grosvenorcasinos.com. The £40 bonus may only be used on selected games; some titles are excluded and do not contribute to wagering requirements. The qualifying deposit (£20) plus the bonus (£40) must be wagered ten times (10×) — total wagering requirement £600 — before any winnings can be withdrawn from the bonus balance. Players have 30 days from the date the bonus is credited to fulfil the wagering requirement; any unmet bonus balance is forfeited on expiry. Maximum amount convertible from bonus to cash is £200; maximum total win from the bonus is £2,000. Withdrawing any part of the cash balance before wagering requirements are met will cause the remaining bonus balance to be forfeited. Free spin winnings are credited as a bonus, subject to a separate 10× wagering requirement playable on Big Bass Splash only; players have 7 days to use the free spins before they expire; maximum win from free spin winnings is £100. Wagers placed on cash balance take priority over the bonus balance. Minimal-risk wagering strategies (e.g. betting Red and Black simultaneously on roulette) do not contribute to wagering and may result in forfeiture of the bonus and any associated winnings. General Grosvenor Casinos terms and conditions apply.