The Casumo sign up offer for September 2026 is 100% back as a free bet up to £30. The 2nd chance offer kicks in and refunds your stake if your qualifying first bet of £5 or more loses. Below, we dig into how the offer works, how it compares to the competition, and what else is available to existing punters.
Casumo offers for new customers in September 2026
The current welcome offer gives new punters 100% back up to £30 if their qualifying first bet is lost. There's also a separate welcome bonus for casino players, covered at the bottom of this page.
| Casumo offers | Offer details | Link to claim |
|---|---|---|
| Sports welcome offer | Bet £5, get 100% back up to £30 as a free bet |
- Sport T&C: 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, all sports, excluding horse racing and virtual sports. Gambling can be addictive. Terms & Conditions apply. Please play responsibly. BeGambleAware.org
What is the Casumo sports welcome offer?
The Casumo sign up offer works a bit differently from most UK bookie welcome bonuses. Rather than handing you a free bet outright, it acts as a safety net on your first bet.
Place a combo bet of £5+ with 3+ selections, each at minimum odds of 2/5 (1.40). If it loses, you get the full stake back as a free bet up to £30.
If your 1st bet wins, you get your payout at the combo price. Here’s what you need to know about the offer:
- Minimum deposit: £10
- Qualifying stake: £5 or more
- Bet type: combo bet (acca) with 3+ legs
- Minimum odds: 2/5 (1.40) per leg
- Maximum combined odds: no cap on the qualifying bet, 5/1 (6.0) when you use the free bet
- Eligible markets: all sports except horse racing and virtual sports, so a Cheltenham bet will not qualify
- Time to use your free bets: 7 days
With this format, the offer is great for punters who enjoy accas. It is also unusual. Most of the free bet offers we track pay out whether your qualifying bet wins or loses, so Casumo is really insurance rather than a bonus.
/https%3A%2F%2Ffootballgroundguide.com%2Fapp%2Fuploads%2F2026%2F05%2Fimage.jpeg "Casumo sign up offer: get 100% back as a free bet up to £30 (2026) 1")
How to sign up and claim your Casumo free bets in 5 quick steps
I was able to register on the mobile site and claim the Casumo sign up offer in under 4 minutes. You can also sign up on the desktop site or via the Casumo app. The process is pretty much a carbon copy across the devices:
Step 1: Click through to the Casumo website
Tap the “Claim offer” button at the top of this page. You'll land on the Casumo welcome offer page, where the sports sign-up bonus is clearly visible.
Step 2: Tap Sign up and register
The bright blue Sign up button sits in the middle of the offer page. Tap it to begin registration:
- Select “Sports Bonus”, then enter your email, mobile number, and password
- Enter personal details (name, gender) and your address
- Provide your date of birth
- Tick the boxes to agree to Casumo's terms and data notice, then tap “All set, let's go” to finish.
You'll also see optional steps for bonus preferences and deposit limits. I set a monthly deposit limit of £500 at this stage. Once registration was complete, a pop-up confirmed I had received the “All-Star Free Bet” offer, which also appears under the Values section of your Dashboard.
/https%3A%2F%2Fmedia.footballgroundguide.com%2Fmain%2F2026%2F05%2Fimage-1781610871.png "Casumo sign up offer: get 100% back as a free bet up to £30 (2026) 2")
Step 3: Make your 1st deposit
The platform requires a minimum deposit of £10. Tap the +Deposit button and choose from 7+ payment methods.
My £20 first deposit via Trustly showed on my balance instantly after the transaction went through.
Step 4: Place your qualifying bet
You need a qualifying first bet of £5+. It can be any combo bet (acca) with 3+ legs. Each leg needs minimum odds of 2/5 (1.40), and there is no cap on the combined price. Any sport qualifies except horse racing and virtuals. Singles, system bets, Bet Builders and each-way bets are all excluded.
For my first bet, I built a World Cup combo: Belgium to beat Egypt, both teams to score in Saudi Arabia vs Uruguay, and Iran to beat New Zealand. The combined price came to 21/4.
Expert tip: look for the pink “Second Chance” icon in your bet slip to confirm your acca qualifies. Make sure the welcome offer box is ticked before placing the bet.
Step 5: Receive and use your free bet
If your first bet loses, you get your stake back, pound for pound, up to £30 as a free bet. My bet lost, and I received a £20 free bet under Valuables. You must use it within 7 days as another acca of 3+ legs, each at 2/5 (1.40) minimum odds, with combined odds capped at 5/1 (6.0).
/https%3A%2F%2Fmedia.footballgroundguide.com%2Fmain%2F2026%2F05%2Fimage-1781610905.png "Casumo sign up offer: get 100% back as a free bet up to £30 (2026) 3")
Casumo welcome bonus terms and conditions: what you should know before claiming
It pays to read through the fine print, and these are the terms that popped out when I claimed the Casumo sports sign-up bonus:
| Requirement | Detail |
|---|---|
| Eligibility | New UK customers only, 18+ |
| Minimum deposit | £10 |
| Qualifying bet | Your first bet of £5+ as an acca of 3+ legs |
| Qualifying bet type | Singles, system bets, Bet Builders and each-way bets don't count |
| Minimum odds | 2/5 (1.40) per leg on the qualifying bet |
| Excluded markets | Horse racing, virtual sports |
| Bet funds | Only cash bets qualify |
| One per customer | One offer per person, household, IP address, email, phone number or payment method |
| Refund | 100% of the first losing bet stake up to £30, paid as 1 free bet |
| Time to use the free bet | 7 days |
| Free bet odds | Minimum 2/5 (1.40) per leg, maximum combined 5/1 (6.0) |
| Free bet winnings | Paid in cash, and the original free bet stake won't be returned |
What if I do not receive my Casumo free bets? Troubleshooting and answers
Most issues with free bet offers come down to the qualifying bet not meeting the combo bet wagering. Here's what to check if your free bet has not appeared.
| Problem | Solution |
|---|---|
| Bet won, no free bet appeared | This is normal. The offer only pays out if your qualifying bet loses |
| Placed a single bet | Single bets don't qualify. You need 3+ legs in a combo |
| 1 or more legs under 2/5 odds | The whole bet is disqualified if any leg falls below 2/5 (1.40) |
| Used a Bet Builder | Bet Builders are explicitly excluded from the qualifying bet |
| The bet was cashed out | Cashed-out or cancelled bets don't trigger the refund |
| The deposit was under £10 | You need a minimum first deposit of £10 to activate the offer |
How can I make the most out of the Casumo welcome offer?
Here are strategies and tips I suggest following before you place your qualifying bet:
- Build your acca around 3 or 4 selections you would back anyway – do not just pick long shots to go for the refund
- Your refund is 100% of your stake up to £30, so the size of the free bet depends on what you stake, not on your odds. Stake £30 to get the maximum back
- Domestic league football is the easiest place to build a qualifying acca. Premier League and EFL cards usually carry enough selections above 1.40 to make three legs
- Keep an eye on the 6.0 cap when you use the free bet. That is the maximum combined price for the whole acca, not per leg
Which payment methods can you use to claim the Casumo sign up offer?
Every deposit option at Casumo is available for the sign up offer: Visa, Mastercard, PayPal, Skrill, Apple Pay, Trustly, Instant Bank Transfer, and Paysafecard. Credit cards are not accepted anywhere on Casumo, because UK rules ban them for gambling.
The Casumo minimum deposit is £10 on every one of those methods, and that is the number that matters for the offer: £10 in the account to activate it, then a qualifying combo bet of £5 or more. Casumo runs a closed-loop system, so whatever you deposit with is what your refund comes back to, and the free bet lands in Valuables rather than in your cash balance.
Casumo sports welcome bonus vs other UK bookmaker offers
The sports offer here takes a loss-back unique format. William Hill, NetBet, and most other UK bookies welcome new punters with “bet & get” bonuses. Here’s how it compares against three of the best free bet offers:
| Bookmaker | Welcome offer | Min. bet | Min. odds | Bonus expiry |
|---|---|---|---|---|
| Casumo | 100% back as a free bet up to £30 | £5 | 2/5 (1.40) per leg | 7 days |
| Coral | Bet £5, get £30 in free bets | £5 | 1/2 (1.5) | 7 days |
| NetBet | Bet £10, get £20 free bets | £10 | 1/1 (2.0) | 7 days |
| William Hill | Bet £10, get £30 in free bets | £10 | 1/2 (1.5) | 7 days |
Casumo vs Coral
Both ask for a £5 qualifying stake. The Coral sign up offer pays out £30 in free bets whether your £5 bet wins or loses. Casumo only pays if your bet loses.
Coral's offer is the safer pick if you want a guaranteed bonus on top of any winnings. If you are in it to insure an acca you would have placed anyway, Casumo is a no-brainer.
Casumo vs William Hill
The William Hill sign up offer gives the same £30 in free bets and requires a £10 stake. It is paid regardless of the qualifying bet's outcome. The sportsbook here asks for a smaller £5 stake and lower 2/5 odds per leg. There’s only one downside, and that is it only pays if you lose.
The odds floor at William Hill is lower per selection, but you're putting in double the stake. Casumo's offer is better suited to punters who already build accas with odds above 1.40 per leg and want stake protection.
Casumo vs NetBet
NetBet is the closest thing to Casumo on this list when it comes to stake, and the furthest away on how you get paid. NetBet asks for a £10 qualifying bet at odds of 1/1 (2.0) or longer and pays out £20 in free bets whether that bet wins or loses. Casumo asks for £5 at 2/5 (1.40) per leg and pays nothing if your bet wins, but refunds up to £30 if it loses.
The difference most punters miss is what the free bets can actually be used on. NetBet splits its £20 into four £5 tokens and locks each one to a market: a football Bet Builder at 4.0 or longer, a football acca of four legs or more, a horse racing acca of two legs or more, and a tennis in-play bet. Casumo pays one free bet of up to £30 in a single lump, to be used as another combo of three legs or more at 1.40 per leg with combined odds capped at 6.0. Horse racing and virtual sports are out at Casumo, and in at NetBet.
So the NetBet bonus code is the better pick if you want something guaranteed and you bet across several sports. The Casumo new customer offer suits acca punters who want the bigger number and are happy to only collect when the bet goes down.
The best Casumo promotions for existing customers in September 2026
Once the welcome offer is used up, the promotions at Casumo lean heavily toward casino players. There's no early payout, no best odds guaranteed on horse racing, and the price boosts are modest compared with some rivals.
Sports punters get a handful of useful tools, but the bulk of the ongoing rewards sit on the casino side.
| Ongoing promo | Details |
|---|---|
| Casumo Sub | Player prop bets automatically transfer to the substitute if your selected player is replaced. |
| Casumo Specials | Boosted odds on selected markets across top football fixtures |
| Odds boosts | Automatic boost on selected 1X2, Specials, and outright markets, max stake £100, max extra winnings £500 |
| Each Way Plus | Extra each-way places on selected horse racing, including Ascot meetings, paying 4 places at 1/5 odds |
Safety, security and responsible gambling at Casumo
The platform is run by Recro Limited, licensed in Great Britain under UKGC account number 61549. It's also regulated by Spain's DGOJ, the Swedish Gambling Authority, the Malta Gaming Authority, and the Gibraltar Gambling Commissioner.
During registration, I was glad to set a monthly deposit limit of £500 right away, with options for 24-hour, 7-day, or 30-day limits available on the registration screen itself.
All the responsible gambling tools are nicely tucked in the Play Okay section:
- Deposit limit – set a 24-hr, 7-day, or 30-day limit; adjustable downward immediately and upward after 24 hours
- Net Deposit Limit – a rolling monthly (£4,900) or yearly (£25,000) limit based on deposit – withdrawals
- Take a Break – deactivate your account for 1 day, 2 days, 3 days, 1 week, 4 weeks or 6 weeks
- Activity limit – cap the time you spend betting and gaming each day
- Loss Limit and Wager Limit – set spending caps directly
- Login Time Block – lock yourself out of your account during certain times of the day
- Self-exclusion – self-exclude from 6 months to 5 years. You can also register with GamStop for all UK sites
Casumo also works with GamStop (0800 138 6518 or [email protected]), BeGambleAware (0808 802 0133), and GamCare's National Gambling Helpline (0808 802 0133).
Casumo casino welcome offer
Casumo Casino runs its own separate welcome bonus, you choose one or the other when you register, and the two cannot be combined.
The casino offer is a 50% deposit match up to £100 on your first deposit. The minimum deposit is £20, the bonus carries 10x wagering, the maximum bet is £5 a spin while a bonus is live, and it expires after 7 days. Game and payment method restrictions apply, which is the opposite of the sports side.
Casumo also runs Spinumo, a daily free spin for logged-in players on the casino side, with prizes from 1 to 100 free spins. It is the closest thing Casumo has to a no deposit bonus.
- Casino T&C: 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
FAQ about Casumo welcome offer
Yes, the Casumo app is available for iOS and Android, and the registration flow matches the desktop site step for step. From my experience, the app made placing the qualifying combo bet quicker, since the bet slip and Second Chance icon were easy to spot on a smaller screen.
The current Casumo sports welcome offer is 100% back on your losing first stake as a free bet up to £30. New customers must deposit at least £10, then place a qualifying combo bet of £5 or more with 3 or more legs at minimum odds of 2/5 (1.40) per leg. If the bet loses, the stake is refunded as a free bet valid for 7 days.
Not for the sports welcome offer. Casumo does run Spinumo, a daily free spin available on the casino side simply for logging in, which is the closest thing to a Casumo no deposit bonus currently available.
The minimum deposit to claim the Casumo welcome offer is £10. This applies across all available payment methods, including Visa, Mastercard, PayPal, Skrill, and Trustly.
No. The free bets have no cash value themselves and cannot be withdrawn directly. Any winnings generated by using the free bet can be withdrawn, minus the original free bet stake.
Cashing out is a separate thing, and it costs you the offer. Casumo’s terms say cashed out or cancelled bets do not count, for the qualifying bet and for the free bet.
The qualifying bet can be on any sport except horse racing and virtuals. The free bet, if awarded, works the same way. It must be a combo of three or more selections at 1.40 or longer per leg, with combined odds capped at 6.0.