What is a stake-returned (SR) free bet?
SR free bet — A stake-returned free bet pays winnings AND returns the stake — a much cleaner extraction than the more common stake-not-returned (SNR) variant.
A stake-returned free bet — written SR by matched bettors — is a free bet that pays out both the winnings AND the stake when your selection wins. Place a £30 SR token at 3.0 odds; if the selection comes in, the bookmaker credits you £90 (the £30 stake plus £60 winnings) rather than the £60 you'd get from an SNR at the same odds.
SR free bets are noticeably rarer than SNR in the UK welcome-offer market, but they show up regularly in two places: occasional welcome offers from operators like BetVictor and Unibet, and certain mid-promotion reloads where the bookmaker is pricing a sharp incentive. When you spot one, the matched-betting maths is materially better. SR extraction typically lands at 90%+ of face value, against 70–80% for an SNR — the same £30 token is worth around £28 in cash from an SR and around £22 from an SNR.
The reason is straightforward arithmetic. With SNR the lay stake balances only the winnings; with SR the lay stake balances both the winnings and the returned stake, which makes the back-wins and lay-wins outcomes line up much more closely. Our standard calculator handles SR sizing once you tick the right option — and crucially, the SR ticked option is different from the SNR option, so getting the variant right is the first thing to check on any free bet you receive. The mechanics are unpacked in our free bets guide and the broader matched-betting structure in our matched betting beginner guide.
Worked example
BetVictor credit a £30 SR free bet to your account during one of their occasional SR promotions. You back £30 on a 3.0-priced selection at BetVictor and lay £29.10 at 3.10 on Smarkets. If the back wins, BetVictor pays out £90 (£30 stake + £60 winnings, because SR), the exchange takes £61.11 of liability, and you net roughly £28. If the back loses, the lay leg pays £29.10 less 2% commission — £28.52 in cash.
Both outcomes land within pennies of each other, which is the SR signature: extracted value is around £28 whichever way it falls, or 93% of the £30 face. That's why SR free bets are worth hunting for — the same effort sizing the lay produces a noticeably bigger cash result.
Common mistake
Assuming every free bet is SR because the offer page says "stake returned". Some bookmakers mean "stake returned to your free-bet balance" rather than "stake returned as cash" — that's a re-credit of the token, not a true SR payout. Always check the T&Cs for whether the returned stake settles as withdrawable cash. If it doesn't, the offer is closer to an SNR extraction in practice. The detail sits in the small print, and getting it wrong by sizing the lay stake at SR levels rather than SNR will leave the back-wins and lay-wins outcomes badly mismatched.