Casumo Promo Codes: 100% Back as a Free Bet up to £30

We have compared every Casumo bonus code currently available for new players in 2026. The sports welcome offer is 100% back as a free bet up to £30. Alternatively, you can opt for a 50% up to £100 casino sign-up bonus. You can find the latest betting offers, how to qualify for them and important terms and conditions below.

Last updated:
Current Casumo New Customer Offers for March 2026
Online Bookmaker Rating Welcome Bonus Bonus Code Bookmaker Highlights Secure Link Bookmaker Offer Terms
Casumo Sports 4.4 / 5 100% up to £30 Back as a Free Bet Sports Valid on first combo bet (min. 3 selections) Free bet expires after 7 days Get Bonus T&C's Apply. 18+ New customers only. Registration required. Valid on your first combo bet (minimum 3 selections, minimum odds of 1.40 per selection, minimum bet of £5). If you lose, you receive a 100% refund up to £30 as Free Bet. Free bet valid for 7 days. The Free Bet can be used on a combo bet with at least 3 selections, minimum odds of 1.40 per selection and maximum odd of 6.00, Football only. Terms & Conditions apply. Gambling can be addictive. Please play responsibly.
Casumo Casino 4.4 / 5 50% up to £100 Casino 10x wagering requirement 7-day validity Get Bonus T&C's Apply. 18+. New customers only. Opt-in required. 50% Deposit Bonus up to £100 on first deposit. Min deposit £20. 10x wagering on bonus amount. Max Bet/Spin €5 or local equivalent. Bonus valid for 7 days. Game, play and payment method restrictions apply. Play responsibly • BeGambleAware.org
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Casumo Welcome Offer – 100% Back as a Free Bet up to £30

Casumo’s sports welcome offer is a second-chance deal for new customers. Place a qualifying combo bet, and if it loses, you get a 100% refund as a free bet, up to £30. The first bet must have a £5+ stake, include at least 3 selections, and have odds of 1.40 or higher per leg.

Singles do not qualify, and neither do Bet Builders, system bets, each-way, cash-outs, or cancelled bets. The free bet is valid for 7 days and must be used on another 3+ leg combo at minimum odds of 1.40 per leg, with maximum overall odds of 6.00.

While the offer requires a £5 minimum bet, you’ll need to make a first deposit of at least £10. Casumo is a betting site that accepts PayPal. You can also use various other payment methods, including debit cards, Trustly, and PaysafeCard.

Typically, welcome offers credit a free bet after you place a qualifying wager. Casumo is different, as the free bet only kicks in if your first combo bet loses, so it is not a guaranteed reward. The £5 minimum stake is low, though, making it a good option for smaller-stakes players.

How to Claim the Casumo Welcome Offer

Other Important Casumo Sign-Up Offers Terms and Conditions

Casumo has a separate casino welcome offer, with different conditions from the sportsbook deal. We have outlined the key terms you need to know before claiming the bonus.

Casino

New customers can claim a 50% up to £100 casino welcome bonus. To get the offer, you must opt in while making a first deposit of at least £20. The bonus is awarded instantly and expires after seven days. The casino bonus has a 10x wagering requirement, with a £5 maximum bet while it is active. Slots and similar games contribute 100%; table games have a 10% weighting; live casino and video poker contribute 5%; and baccarat does not count. The £20 minimum deposit is a little higher than the £10 entry point you often see. However, the 10x wagering requirement is fair. We also liked that most games contribute towards bonus playthrough, which sets it apart from many other UK casino welcome offers.

Casumo Bonuses for Existing Customers

Casumo runs ongoing rewards for regular players, with most promos focused on the casino. Sports offers do appear too, but they are more common around major fixtures and headline events.

Spinumo – Spin for Daily Rewards

Spinumo is a daily prize wheel that guarantees a win, with prizes ranging from 1 to 100 free spins. To get a spin on the wheel, you need to have made at least one deposit in the last seven days. The free spins are worth 10p each, expire after 24 hours, and can be used on specified slots. These include player favourites like Starburst, Book of Dead, and Big Bass Splash. Any winnings are paid as cash with no wagering requirements.

Umoboards – Leaderboard Rewards

Umoboards are Casumo’s exclusive slot leaderboard challenges, designed as a loyalty-style reward for active players. They appear without a fixed schedule. Each board uses its own scoring logic, so the way you play can matter as much as how frequently you play. Rankings update in real time, and formats can vary from spin volume to win-to-bet ratios to the biggest single-win ratio. Prizes go to the top finishers, with multi-value rewards and occasional surprise extras for players as they climb the board.

Casumo Responsible Gambling Tools

Casumo provides a set of safer gambling tools that help you control the time and money you spend on the site:

Other Bookmaker Bonus Codes and Promotions

Casumo features attractive sign-up offers, but there are plenty more deals to choose from. Here are some alternatives to consider: