Online Slots Bonuses

Card Reg Bonus

Free Welcome Bonus

Boss the slots with £10 free when you register. We'll credit you with your free funds once your card is added to the account - there's no deposit required, you'll just be ready to start spinning your favourite slots completely free.

T&C's Apply. New players only. Opt in required. 99x wagering requirement. Maximum single stake with a bonus of £5. £50 max win and withdrawal for non-depositors. 7 day expiry. Only bonus stakes contribute towards wagering requirements. Not all games contribute towards wagering. 18+ Begambleaware.org

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First Deposit Bonus

100% First Deposit Bonus, up to £50!

There's up to £50 in bonus funds up for grabs when you make your first deposit at Slot Boss. We'll match you 100%, giving you more to play your favourite slots.

T&C's Apply. New players only. Opt in required. 100% deposit match up to £50. 40x wagering requirement on bonus. Maximum single stake with a bonus of £5. 30 day expiry. Only bonus stakes contribute towards wagering requirements. Not all games contribute towards wagering. 18+ Begambleaware.org

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Current Player Promotions

50% Losses Back!

You choose the time

Secure yourself a refund this weekend. Opt in via the My Promotions page and get 50% losses back up to £10 for one hour. If you aren't a winner you will be instantly refunded up to £10 back as bonus funds once the time is up.

T&Cs apply. Promotion will run from 12:00 Friday 12th July 2019 to 23:59 Thursday 18th July 2019. Opt in via the "My Promotions" page required. Losses back period will finish one hour from opt in time. Refund calculated as 50% of net cash losses on slots within this one hour period. Refund will be paid as bonus with a 25x wagering requirement. Max refund £10. Max single stake with a bonus of £5 applies.. 18+Begambleaware.org

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Slot of the Week Slot of the Week

Get 10 free spins on our Slot of the Week when you stake £20. Opt in from the "My Promotions" page and start spinning Win Escalator to earn yours.

T&C's Apply. Promotion will run from 00:00 Monday 15th July to 23:59 Sunday 21st July. Opt in via the "My Promotions" page. Must stake £20 cash on Win Escalator to be instantly credited 10 free spins on the same game. Free spins are awarded at £0.10p per spin. Winnings from free spins will be paid into cash balance. 18+ BeGambleAware.org

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Keep in touch

Never want to miss another bonus again? Stay up to date on all our promotions including free spins, losses back and deposit offers by making sure you're opted in to receive marketing. Just follow the link below to select how you want to hear from us.

No wagering requirements

Wager-free spins

At Slot Boss we guarantee that all the free spins we give away carry no wagering requirements. That means all winnings are yours to keep.

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** Any bonus issued is valid for a period of 30 days from the date of issue unless otherwise stated in the specific promotion. Any remaining/unused bonus at the end of the stated period will be removed from the player’s account. See terms and conditions for full promotional terms. **