SBK is the sportsbook app from Smarkets, the London betting exchange, and it prices its markets off exchange odds — which is why its margins are among the tightest on this list. It’s a mobile-first product aimed at value bettors rather than promotion hunters.
BonusRated reviews the SBK welcome offer for new customers as it stands now: Bet £20 Get £60 — min bet £20, stake not returned, singles: accas.
Our view: a fair free bet with a couple of restrictions that decide how much of it you actually get back. We rate the SBK offer 3.3/5 for value and 3.9/5 overall.
SBK Free Bet Offer & Promo Code Terms
| SBK Free Bet | Bet £20 Get £60. T&Cs apply. |
| Promo Code | BRITISHG60 |
| Qualifying Bet | £20 |
| Minimum Odds | 2.0 |
| Stake Returned | No — Winnings only |
| Singles Allowed | Accumulators Only |
| Expiry | 2 days |
| Offer Tested | 2026, New customers 18+ only. |
Here are the significant SBK sign-up free bet terms and promo code details for new customers:
New UK customers. Min £20 first deposit by debit card or bank transfer. Place a bet of £20 at min odds of 2.0 and get £60 in Free Bets (6 × £10) after settlement. Free bets expire 7 days after being credited. Betting restrictions apply to free bet tokens. Promo code BRITISHG60. Full T&Cs apply. 18+. GambleAware.org
Promo code: BRITISHG60 — enter it when you register.
Bet £20 Get £60
Code: BRITISHG60New UK customers. Min £20 first deposit by debit card or bank transfer. Place a bet of £20 at min odds of 2.0 and get £60 in Free Bets (6 × £10) after settlement. Free bets expire 7 days after being credited. Betting restrictions apply to free bet tokens. Promo code BRITISHG60. Full T&Cs apply. 18+. GambleAware.org
Expert Verdict: SBK
“An “App-only” sportsbook that gives you exchange-level odds without the complexity of backing/laying. Incredible value for Premier League betting.”
We’ve given the SBK offer 3.3/5. Some catches worth knowing about. Like most bookies, stake isn’t returned — only your winnings. These are acca-only, so factor in the extra risk. At 3x your stake, this is one of the larger welcome offers around.
SBK at a Glance
| Best for | Bonus hunters looking for maximum value |
| Welcome Offer | Bet £20 Get £60 |
| Min Qualifying Bet | £20 |
| Minimum Odds | 2.0 |
| Stake Returned? | No |
| Singles Allowed? | Accas Only |
| Free Bet Expiry | 2 days |
| Cash Out | Available on most markets |
| Payout Speed | 24 hours |
| UK Licence | UKGC #45976 |
| Bonus Score | 3.3/5 |
| Overall Score | 3.9/5 |
Most Popular Betting Markets at SBK
Our take on this: These are the markets UK punters bet on most frequently.
Football
- 1X2
- Over/Under
- Both Teams to Score
- Correct Score
Horse Racing
- Win
- Each Way
- Forecast
- Tricast
Tennis
- Match Winner
- Set Betting
- Games Handicap
Basketball
- Money Line
- Spread
- Totals
Accumulators
- 2-5 Legs
- Same Game Multi
- Bet Builder
Live Betting
- In-Play 1X2
- Next Goal
- Running Totals
Sports and Bet Types Available
Sports Covered
| Sport | Leagues | Coverage |
|---|---|---|
| Football | 40+ leagues | Good |
| Horse Racing | UK, Ireland | Good |
| Tennis | ATP, WTA | Standard |
| Cricket | International | Standard |
| Basketball | NBA, EuroLeague | Standard |
| Golf | Major Tours | Standard |
Bet Types Offered
- Singles
- Accumulators
- System Bets
- Cash Out
- Bet Builder
- Same Game Acca
- In-Play Betting
- Each Way
Odds Quality: How Competitive Are SBK’s Prices?
We’ve analysed SBK’s margins across popular markets. Lower percentages mean better value for punters.
| Market | Margin | Rating |
|---|---|---|
| Premier League 1X2 | ~101% | Excellent |
| Tennis Match Winner | ~102% | Excellent |
| Horse Racing Win | ~103% | Very Good |
| NBA Money Line | ~102% | Excellent |
Industry average: Traditional bookmakers typically run 105-108% margins on football. Exchanges like Smarkets offer near-100% when accounting for commission.
Live Betting Experience and In-Play Markets
- Live Streaming — Limited or requires deposit
- Cash Out — Available on selected markets
- In-Play Depth — Standard live market range
- Bet Builder Live — Pre-match only
- Stats Overlays — Basic or none
Betting Restrictions and Rules to Know
These are the key restrictions that affect how you can use your free bets.
- Minimum Odds — Free bets require minimum odds of 2.0
- Accumulator Only — Free bets must be used on accumulators or bet builders
- Stake Not Returned — Only winnings from free bets are paid out, not the stake
- Short Expiry — Free bets expire within 2 days of being credited
Betting Tools and Platform Features
- Bet Builder
- Early Payout
- Partial Cash Out
- Edit Bet
- iOS App
- Android App
- Acca Insurance
- Stats & Insights
Who SBK Is Best For (and Who Should Avoid It)
Good fit for
- •Bonus hunters looking for maximum value
- •Accumulator enthusiasts
Not ideal for
- •Conservative single-bet players
- •Players seeking the most generous welcome offers
- •Those expecting stake-returned free bets
How We Rated SBK
In plain English: We analyse 6 key metrics for free bet offers, then combine with operator quality for the overall score.
- 2/5 — Cash Equivalent
- 4/5 — Claim Difficulty
- 3/5 — Usage Flexibility
- 4/5 — Withdrawal Terms
- 1/5 — Expiry Window
- 4/5 — Real-World Value
Formula: Overall Score = (Free Bet Score × 40%) + (Operator Quality × 60%)
= (3.3 × 0.4) + (4.3 × 0.6) = 3.9/5
What we like
- £60 from a £20 stake (3x value)
- Exchange-quality odds
- Quick settlement
Could improve
- Free bet tokens restricted to multiples and bet builders
- Paid as 6 × £10 tokens, not one free bet
- 7-day expiry on each token
Frequently Asked Questions
What is the SBK welcome offer?
New customers can get Bet £20 Get £60. Use promo code BRITISHG60. Minimum qualifying bet is £20.
Is the free bet stake returned at SBK?
No, SBK free bets are stake-not-returned. If you bet £10 at 5/1 and win, you get £50 (winnings only, not the stake).
Can I use SBK free bets on singles?
No, SBK free bets must be used on accumulators or bet builders. Singles are not eligible.
What are the minimum odds for SBK free bets?
Free bets at SBK require minimum odds of 2.0 (Evens). Bets at lower odds won’t count.
How long do SBK free bets last?
SBK free bets expire 7 days after being credited to your account. Make sure to use them before they expire.
Is SBK licensed in the UK?
Yes, SBK holds a UK Gambling Commission licence (number 45976). This ensures they meet strict standards for player protection and fair play.
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