Almost every UK bookmaker will give you a free bet when you join. The headline is always simple, usually “bet £10, get £30 in free bets”, but the way free bets actually pay out catches a lot of people out. This guide explains how they work, what they’re really worth, and how to avoid the small-print mistakes that stop you getting paid.
The short version
- A free bet is a bet token, not cash. You usually get it after placing a qualifying bet with your own money.
- When a free bet wins, you keep the winnings but not the stake. A £10 free bet at 3.0 returns £20, not £30.
- Free bets have expiry dates (often 7 days) and sometimes restrictions, like accumulators only.
- Because the stake isn’t returned, a £10 free bet is worth less than £10. We show an estimated value on every offer so you can compare them honestly.
In short, the video covers the basics in under two minutes. However, the written guide below goes further, so it’s worth reading as well. For example, it explains how matched betting turns a free bet into a near-fixed return. Finally, it shows you what to check before you claim.
What is a free bet?
A free bet is a credit in your bookmaker account that you can place as a bet without using your own money. It sits in a separate “free bets” or “rewards” area of your account. When you build a bet slip you choose to use the free bet instead of your cash balance.
You can’t withdraw a free bet as cash. It only turns into real money if you bet with it and the bet wins. Any winnings go into your cash balance and you can withdraw them like any other money. On standard UK sports offers there’s usually no wagering requirement on free bet winnings, but always check the terms.
How a typical welcome offer works, step by step
Most sign-up offers follow the same pattern:
- Register as a new customer, entering a promo code if the offer needs one.
- Deposit using an eligible payment method, usually a debit card. Some bookmakers exclude e-wallets like PayPal, Skrill or Neteller from their welcome offer.
- Place a qualifying bet: for example £10 on a single at odds of evens (2.0) or bigger, within a set number of days of joining.
- Wait for it to settle. Most bookmakers only credit the free bets once the qualifying bet has settled, win or lose.
- Use your free bets before they expire, sticking to any rules about which markets or bet types they cover.
The qualifying bet is where most people slip up, so we’ve written a separate guide on it: qualifying bets and minimum odds explained.
“Stake not returned”: the rule that changes everything
This is the most important thing to understand about free bets. When a normal cash bet wins, you get your winnings plus your stake back. When a free bet wins, you only get the winnings. The bookmaker keeps the stake, because it was never your money.
| £10 bet at odds of 3.0 (2/1) wins | You get back | Profit |
|---|---|---|
| Cash bet | £30 | £20 |
| Free bet (stake not returned) | £20 | £20 |
Your profit is the same either way. What changes is that a free bet at short odds returns very little. A £10 free bet on a 1/2 favourite (1.5) only pays £5 if it wins, and you risked nothing to get it. At bigger odds the free bet keeps more of its value. That’s why experienced punters rarely use free bets on heavy favourites.
What is a £10 free bet actually worth?
Less than £10, and how much less depends on how you use it.
- Used as a normal bet, a free bet’s long-run value is roughly the face value minus the bookmaker’s margin minus the stake you don’t get back. At odds around 4.0–6.0 on a normal market, a £10 free bet is worth roughly £7–£8 on average. The actual result is win or bust.
- Locked in by laying the same selection at a betting exchange (matched betting), most people keep roughly 70–80% of the face value, whatever the result.
That’s why every offer on Sports Compare shows an estimated value next to the headline amount. A “£30 in free bets” offer split into three £10 bets that only work on 4-fold accumulators is worth noticeably less than a single £30 free bet you can use on anything. You can read more about how we calculate it on our how we rate offers page.
The different types of free bet
| Type | How it works | Watch out for |
|---|---|---|
| Standard free bet | Use on any sport, any market, singles or multiples. | Minimum odds and expiry. |
| Split free bets | £30 paid as 3 × £10 (or 6 × £5) tokens. | You must use each token in full on one bet, and you can’t combine them. |
| Accumulator free bet | Only works on an acca with a minimum number of legs (often 3, 4 or 5). | Harder to win, and each leg may have minimum odds. |
| Bet builder free bet | Only works on a bet builder (several markets in one match). | Bet builder prices carry a bigger bookmaker margin. |
| Sport-specific free bet | Only for football, horse racing, and so on. | Bookmakers often exclude virtual sports and some markets. |
Accumulator and bet builder free bets have their own guide: how to use acca and bet builder free bets.
Common reasons people don’t get their free bets
- Odds too short. A £10 bet at 1.9 won’t count for an offer that needs evens (2.0) or bigger.
- Wrong payment method. Depositing with PayPal or another e-wallet when the offer says debit card only.
- Cashing out. Many bookmakers don’t count qualifying bets that are cashed out, fully or partially.
- Splitting the stake. Two £5 bets usually don’t count as one £10 qualifying bet.
- Missing the promo code, or entering it after registration when it needed to go in during sign-up.
- Not a new customer. Offers are one per person, household, IP address and payment method, and some sister brands share customer lists.
- Letting them expire. Free bets typically expire after 7 days; some last 30.
Are free bets really free?
The free bet itself is, but getting it usually means risking your own money on the qualifying bet first. That’s why every offer on Sports Compare carries a risk rating as well as a difficulty rating. “Very low risk” offers are ones where the qualifying bet can be covered so you’re very unlikely to lose money, while “medium” or “high risk” offers put more of your stake on the line.
UK rules also help. Since 19 January 2026, the Gambling Commission has capped wagering requirements on bonuses at 10× and banned promotions that mix gambling products, like “bet on football, get casino spins”. Welcome offers are now simpler, and a sports free bet has to stay a sports free bet.
Best free bets to start with
If you’re new to free bets, start with an easy offer: one qualifying bet at ordinary odds and free bets you can use on anything. These are the easiest to complete right now:
Free bet offers
Paddy Power Sports Easy Low risk
£30 in free bets
18+ · Code YSKAST · £5 bet at evens+ · £30 free bets · 30 days · Debit/Apple Pay/bank
Full T&Cs
18+ · New Customer offer - Use promo code YSKAST. Place a min £5 bet on the sportsbook at odds of min EVS (2.0) and get £30 in free bets. Free bet rewards valid for 30 days. Only deposits via Pay by Bank, Debit Cards & Apple Pay will qualify for this offer. T&Cs apply. Please Gamble Responsibly
Kwiff Sports Easy Very low risk
£40 in free bets
18+ · £10 bet at 2.0+ in 5 days · 4 x £10 free bets (3+ legs each) · 7-day expiry
Full T&Cs
New UK customers. £10 cash bet, min. odds 2.0, in 5 days of deposit. Get 4x £10 Free Bets: Single, 2 Accas & Bet Builder (3+ legs each). Excl. cashout, E/W, Multis, Ineligible Markets & Odds Boosts. 7-day expiry. T&Cs apply. 18+ | GambleAware
Unibet Sports Easy Very low risk
£40 in free bets
18+ · Opt in · Dep & bet £20 at 2.0+ in 7 days · £40 free bets · 7 days · Debit/bank only
Full T&Cs
18+ | GambleAware.org. New GB customers only. Opt in, deposit and Bet £20+ on sports at min odds of 2.0+ (1/1) for £40 in Free Bets within 7 days of registration. Debit cards or instant bank transfers only. Free bets expire within 7 days of issue. Geographical restrictions and T&C’s apply.
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Compare every free bet offer →
Free bets FAQ
No. A free bet can’t be withdrawn. It only becomes cash if you bet with it and win, and then the winnings (not the stake) go into your withdrawable balance. On most UK sports welcome offers, no: free bet winnings are paid as cash. Some offers do attach conditions, and since January 2026 any wagering requirement on a UK bonus is capped at 10×. Always check the offer terms. Almost never. On a “stake not returned” free bet, a £10 free bet at odds of 4.0 returns £30 if it wins: the £30 winnings without the £10 stake. Usually 7 days from when they’re credited, though some bookmakers give 14 or 30 days. The expiry date is shown in your account next to the free bet. Yes, each bookmaker has its own welcome offer for new customers. You can only claim each one once, and some brands that share an owner or platform treat you as an existing customer if you’ve joined a sister site.Can I withdraw a free bet?
Do free bet winnings have wagering requirements?
Is the stake returned on a free bet?
How long do free bets last?
Can I claim a free bet from every bookmaker?
18+ only. Free bets and welcome offers are for new customers and T&Cs apply. Gambling should be fun. If it stops being fun, visit our responsible gambling page or call the National Gambling Helpline on 0808 8020 133.
