By Priya Wadhwa, Payments & Promotions Analyst. Last updated
How a typical free bet works
Most sports sign-up offers follow the same pattern. You open an account, deposit, and place a qualifying bet of a set amount at or above minimum odds. Once that bet settles, or sometimes as soon as it is placed, the site credits one or more free bet tokens. You then use the tokens on eligible markets before they expire.
The crucial detail is whether the stake is returned. With a stake-not-returned free bet, which is by far the most common type in the UK, a winning £10 free bet at 3/1 pays £30, not £40. The token itself is never paid out. With the rarer stake-returned version, you receive the stake as well.
| Odds | Stake not returned | Stake returned |
|---|---|---|
| Evens | £10 | £20 |
| 2/1 | £20 | £30 |
| 4/1 | £40 | £50 |
| 9/1 | £90 | £100 |
What changed on 19 January 2026
New Gambling Commission rules took effect on 19 January 2026. Two matter most for betting offers. First, wagering requirements on any bonus are capped at ten times the bonus amount. Second, mixed-product promotions are banned, so an operator can no longer reward a sports bet with casino spins or require you to play slots to unlock a betting bonus.
For most sports bettors, the practical effect is simplification. Free bet tokens without wagering conditions were already the norm, and they continue. What has largely disappeared are bundled offers that pushed people between products. Operators must also present significant terms clearly and close to the offer itself, rather than burying them in a separate document.
Offers still carry conditions
A cap of 10x is a ceiling, not a guarantee of no conditions. Always check minimum odds, expiry dates, eligible markets and any maximum winnings before you opt in.
How to work out what an offer is really worth
A stake-not-returned free bet is worth less than its face value because you only keep the profit. As a rough guide, if you use a £10 token at odds of about evens, you can expect it to be worth around half its face value on average once the chance of losing is taken into account. Using it at longer odds raises the potential return but lowers the chance of any return at all; the expected value stays below face value either way because of the bookmaker’s margin.
You also need to account for the qualifying bet. If you must stake £10 of your own money at minimum odds, the margin on that bet is a cost. An offer that looks generous can become modest once you factor in restrictive minimum odds, a short expiry and a narrow list of eligible markets.
Key terms to check
- Minimum odds for both the qualifying bet and the free bet.
- Expiry, which is often seven days and sometimes shorter.
- Eligible markets, including whether bet builders or in-play count.
- Splitting, meaning whether a £20 token can be used as two £10 bets.
- Payment method exclusions, as some sites exclude certain e-wallets from offers.
Ongoing promotions for existing customers
Beyond sign-up offers, many sites run regular promotions such as price boosts, acca insurance and best odds guaranteed on racing. Best odds guaranteed can be genuinely valuable: if you take a price and the starting price is bigger, you are paid at the higher figure. Price boosts need more scrutiny, because a boosted price on a market with a high margin may still be only average value.
Treat promotions as a small bonus rather than the reason to bet. If you notice yourself betting on events you would otherwise ignore simply to use a token, that is a signal to step back. Our comparison guide explains why margins matter far more than offers over time, and our payments guide covers the deposit rules that often apply to qualifying bets.
Questions readers ask
No. A free bet token has no cash value. You can only withdraw the winnings it generates, and with stake-not-returned tokens that means the profit alone.
Common reasons include depositing with an excluded payment method, placing the qualifying bet below the minimum odds, or having previously held an account with the same operator or group.
No. Winnings from free bets are treated the same as other betting winnings, which individuals in the UK do not pay tax on.