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Best Casino Deposit Bonuses

The best casino and slot sites with the biggest and best welcome bonus offers for 2020 – compare casinos to find the best deposit bonus offers for UK players.

Casino & Slots – Best Deposit Bonuses

Best Casino Deposit Bonuses

These days many casino and slot sites eschew traditional welcome bonus offers in favour of bonus spins, a bonus game of chance or some kind of alternative player reward system.  Many players, however, still prefer the old type of offer and in this section we gather the best of them together.


What counts as a good welcome bonus offer?

100% slots bonus up to £100 is a reasonably generous sort of offer to find at an online casino these days and to be included here a casino must do at least that well and ideally improve on it in one of the following ways:

  1. Enhance it with a substantial number of bonus spins
  2. Bigger maximum than £100 on a 100% bonus
  3. Bigger base percentage than 100% (albeit perhaps on a smaller deposit)

Bonus play and wagering requirements

The main advantage to playing with bonus is obvious – it means more play and that means more entertainment value.

The equally obvious drawback to playing with bonus is that the wagering requirement needs to be completed before any winnings can be withdrawn (although this may not be much of an issue for someone who is playing for entertainment).

It actually goes a bit further than that though.  Because almost all casino and slot sites take wagers from a player’s cash balance first and from the bonus only after the cash is exhausted , the player has to lose their deposit in order to get started on the bonus (if they win with the cash and withdraw the winnings, they lose the bonus).  Of course, the same also applies to winnings from bonus spins (if paid as a bonus) although not the bonus spins themselves which are always used first.

Other things to consider

Many casinos specify a list of games that cannot be played with bonus and this almost always includes all progressive jackpots.  Other types of game which may be on the list are:

  • Table games (if not excluded completely, they will contribute to wagering requirements at some very small percentage)
  • Slots with an unusually high Return to Player – such as Bloodsuckers
  • Slots with some sort of collector mechanic for the bonus round – such as Super Monopoly Money and Castle Builder
  • Slots with very high variance – such as Dead Or Alive

Further restrictions on bonus play may be in place, for instance

  • A maximum bet size while a wagering requirement is in place
  • A stipulation that bonus rounds must be played immediately after being awarded, with no other play or deposits allowed in the meantime

It is always a good idea to read the terms and conditions closely before accepting or starting to play with a bonus to ensure that the game you want to play is included and so as not to fall foul of any other restrictions on bonus play.


*New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.

*First-time depositors only (UK exc NI, 18+). Min deposit £10. Max offer £30 Bingo Bonus, 20 Free Spins [game of our choice] & 150 Free Bingo Tickets [£50 Daily Treat]. Bingo Bonus & Bingo Tickets (granted in bingo bonus) winnings must be wagered 4x. Bingo Tickets expire after 7 days. Free Spins [FS] winnings are credited as bonus funds with 40x wagering. Slots Bonus winnings, if applicable, will be capped at £100 + original bonus amount. FS winnings cap: £2.00. Wagering contribution varies by game. FS expire after 7 days. Promo code: LEAFY. We reserve the right to deny promotional offers based on abusive bonus activity across sites operated by the Company. Deposit balance available for withdrawal at any time (UK only). General withdrawal restrictions & full T&Cs apply. Valid until 31/12/2021.

*New players only making their first deposit. Min deposit £10 using promo code: BINGO. Max £30 Bingo Bonus (5x wagering on dep + bonus, 4x conversion) + 40 Spins on Starburst (40x wagering, 4 x Conversion). Free Room available for 7 days from the day after your first wager of at least £1 on bingo. Max 6 tickets per game. Valid until further notice. Full T&Cs apply.

**18+, BeGambleaware.org Minimum deposit £10, maximum bonus £20. You must wager your bonus 40x to make it withdrawable. Free Spins are credited on Starburst in batches of 10 over the next four working days and carry a 15x wagering requirement. Bonus will expire after 7 days of opt-in.

*New players only (UK, 18+). Valid until further notice. Min deposit £10. Max Bingo Bonus (BB) £50. BB WR:x4. 30 FS on selected games. FS term: 7 days. FS wins are granted in games bonus [GB] and capped at £2. GB is valid on selected games only.GB WR: x80. GB wins cap: £100 + bonus amount. WR vary by game. UK - deposit bonus is available for withdrawal at any time. Donation to charity: THL will match 20% of first deposit (up to £5) as a donation to NHS Charities Together. We reserve the right to deny bonuses based on abusive activities. Withdrawal restrictions and full T&Cs apply

*New players only. Min deposit £20, Max bonus £100. 50x WR, 100 Free Spins - 10 batches of 10 Free Spins Daily - No WR - Max Win £10 per batch. T&Cs Apply

*New players only. Valid once until further notice . Min deposit £10 for 200% Bingo Bonus [BB] up to £50 + 20 Free Spins [FS] on White Wizard Deluxe (valid for 3 days, wins cap: £3). FS wins granted in Games Bonus [GB] after all FS used. GB valid on selected games only. Wagering requirements [WR]: 4x (deposit + BB) & 85x(GB). WR vary by game. GB wins cap: £100 + initial bonus amount. UK: deposit balance can be withdrawn at any time. 18+. Withdrawal restrictions & Full T&C apply.

*Must claim during account registration, claim once only, valid 24hrs, bonus & winnings playable on all bingo games (excl. BOB and Britain’s Got Talent bingo), 4xWR, T&Cs apply 18+

*First-time depositors only (18+ UK Only - excluding players based in Northern Ireland). Min Deposit £10. Max Offer: 100% Bonus up to £25 Bonus Plus 25 Free Spins. Promo code: BAZAAR  Bonus winnings must be wagered 60x Games bonus winnings will be capped at £100+ original bonus amount. Free Spins are valid for 7 days. Free Spins winnings are credited as bonus funds with 40x wagering. Free Spins winnings are capped at £2.5. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time(UK only). Odds of winning vary between players depending on gaming and deposit activity.  General withdrawal restrictions & full T&Cs apply. Valid until 31/12/2021