400% Casino Bonus UK
Most casinos grant bonuses. Generous gambling sites multiply a player’s deposit by up to 100%, effectively doubling it. However, a few top-rated casinos in the UK grant a whopping 400% casino bonus. That’s right, the operator multiplies a player’s deposit by four.
Better yet, we know exactly where to find them. Our experts have researched a list of legit casinos that grant these attractive offers. Discover the top 400% deposit bonus promotions and how to claim them today!
Top 400% Deposit Bonus Promotions
1 | 100% up to £150 + 50 FS Min Dep £10 Wager x50 *Terms & Conditions | 18+. New UK customers only. Opt in required. Bonus can be claimed only once. Minimum required deposit = £10. Maximum bonus = £150. Bonus money wager = 40x before bonus funds or associated winnings can be withdrawn. Bonus spins wager = 50x before bonus funds or associated winnings can be withdrawn. 50 bonus spins will be credited automatically, if bonus was activated and first deposit was made within 48 hours of registration. Welcome Spins must be used within 24 hours of crediting. Maximum bet = £5 per bet/spin when wagering with bonus money. General T&C and General Promotion Terms apply. Play responsibly. Customers who are displaying indicators of harm (at our sole discretion) are not eligible for any bonuses or promotions. |
2 PlayUK Casino | Bet £20 on slots for 100 Free Spins on Big Bass Splash Min Dep £20 Wager x40 *Terms & Conditions | First deposit only. Min deposit £20. Min wager £20 on slots. Max 100 Free Spins. Max one claim. Spins credited within 7 days after deposit. Spins valid on Big Bass Splash. Spin value 10p. Full T&C's Apply. |
100 Free Spins on Big Bass Splash when bet £10 Min Dep £10 Wager x40 *Terms & Conditions | New customers only. £10 min deposit. Opt-in and Bet £10+ on any slot, winnings paid as cash. 100 Free Spins on Big Bass Splash, £0.10 per spin. Winnings paid as cash, £100 Max win. Additional T&Cs apply. | |
100% Deposit Bonus up to £100 on your first deposit + 50 Bonus Spins on Big Bass Bonanza Min Dep £20 Wager x30 *Terms & Conditions | SigTerms: 18+. New customers only. 100% Deposit Bonus up to £100 on the first deposit. 30x wagering on Deposit and Bonus (game weighting applies) + 50 Bonus Spins (Big Bass Bonanza) of £0.10. Min. deposit £20. Play responsibly • BeGambleAware.orgT&Cs apply | |
5 Exclusive BeOnBet | 150% up to €450 + 150 Free Spins Bonus code : BETBEZILLA Code copied Min Dep €20 Wager x40/x35 *Terms & Conditions | |
23 Extra Spins on Book of Dead on registration + up to £111 bonus + 77 Free spins Min Dep £10 Wager x60 *Terms & Conditions | #AD 18+, New customers only, min deposit £10, wagering 60x for refund bonus, max bet £5 with bonus funds. Free Spins bonus has x40 wagering. 23 free spins on registration (max withdrawal is £100). 100% refund bonus up to £111 + 77 spins on 1st deposit. No max cash out on deposit offers. Eligibility is restricted for suspected abuse. Welcome bonus excluded for players depositing with Ecopayz, Skrill or Neteller. Full T&Cs apply. Begambleaware.org, Gamble Responsibly. | |
100% Bonus up to £50 Min Dep £10 Wager x30 *Terms & Conditions | 18+. Automatically credited upon deposit. Cancellation can be requested. First Deposit Only. Min. deposit: £10, max. Bonus £50. WR of 30x Deposit Plus Bonus amount (Slots count 100% and any other game 10%) within 30 days. Max bet is 10% (min £0.10) of the Bonus amount or £5 (lowest amount applies).Bonus must be claimed before using deposited funds. Bonuses do not prevent withdrawing deposit balance. First Deposit/Welcome Bonus can only be claimed once every 72 hours across all Casinos. Bonus Policy applies. Full T&C apply. Begambleaware. | |
8 Royal Valley Casino | 10 Free Spins No Deposit & 100 Cash Spins (£20 Deposit & Wager) Min Dep £20 Wager x60 *Terms & Conditions | Available for new registrations only. Max 10 bonus spins credited upon SMS validation. Finn and the Swirly Spin only. 60x Wagering, 4x Conversion up to £200. 18+. Full T&Cs apply. |
Get 200 free spins when you stake £10 Bonus code : SPINS Code copied Min Dep £10 *Terms & Conditions | New customers only. Register and enter promo code SPINS prior to deposit. Deposit, using a Debit Card, and stake £10+ within 14 days on Slots at Betfred Games and/or Vegas to get 200 Free Spins on selected titles. £0.10 per spin. Credited within 48 hours and valid for 7 days. Full T&Cs apply. | |
80 CHANCES TO WIN THE JACKPOT + UP TO £480 IN DEPOSIT MATCH BONUSES Min Dep £1 Wager x200 *Terms & Conditions | Welcome Offer is for New Customers Only. The 80 chances are credited as £20 welcome bonus and players can spin 80 times at £0.25 on the Mega Moolah progressive slot game. The minimum first deposit required is £1, for all subsequent deposits the minimum deposit is £10. A two hundred times wagering requirement applies on all bonuses and certain games contribute a different percentage to the wagering requirement. See full terms and conditions here. |