Ante bet meaning in slots

The ante bet meaning in slots is an optional add-on to your stake: you pay a set amount extra on every spin and, in return, the game changes its rules, most often making the bonus round more likely to start. It raises the cost of each spin, so the useful question is what you get for that extra money.

By the Slot Machines team. Last checked 21 October 2026.

Key takeaways

The ante is an optional extra charge on every spin that alters the game, usually raising the chance of the bonus.
Your total stake rises, so the money you put through the game rises too.
In the UK the £5 (25+) and £2 (18–24) stake limits apply to the total including the ante.
The help screen states exactly what the ante changes and whether the RTP differs.

Term: Ante bet
Also called: Double chance, bet boost, extra bet
What it is: An optional surcharge on each spin
Usual effect: Higher chance of triggering the bonus
UK stake limit: Counts towards £5 (25+) or £2 (18–24)

What an ante bet means on an online slot

The word comes from poker, where an ante is a compulsory amount everyone puts in before the hand. On a slot it is the opposite: entirely optional. You switch it on with a toggle beside the spin button, the game adds a fixed amount to your total bet, and some part of the rules changes for as long as it stays on.

The most common change is a better chance of landing the scatters that start free spins. Other versions add extra symbols to the reels, switch on a modifier, or open a bonus game that is unavailable otherwise. Our ante bet feature page looks at the mechanics in more detail; this entry concentrates on the definition and the money.

How an ante bet changes the slot machine maths

Every slot runs on a maths model: a set of reel strips or symbol weights that decide how often each result appears. An ante option typically swaps in a second model with the scatters placed or weighted more generously. Because you are paying more per spin, the game can afford to give the feature more often while keeping its return close to the advertised figure.

That last point is the one to check. Some games keep the same RTP with the ante on; others list a slightly different figure for each mode. The Gambling Commission's standard on game rules and the likelihood of winning (opens in a new tab) expects this information to be available, so look in the help screen rather than relying on the toggle label.

Worked example: what an ante bet costs

The figures below assume an ante that adds 25% to the base bet and an RTP of 96.5% in both modes. Both numbers are illustrative; your game's help screen gives the real ones. Average cost means stake multiplied by the house edge, a long-run figure that any single session can beat or miss by a wide margin.

Illustrative cost of 100 spins with and without a 25% ante
Base bet	Ante on?	Cost per spin	Staked over 100 spins	Average cost at 96.5% RTP
20p	No	20p	£20	70p
20p	Yes	25p	£25	88p
£1	No	£1	£100	£3.50
£1	Yes	£1.25	£125	£4.38
£1.60	Yes	£2.00	£200	£7.00

The pattern is simple: if the RTP stays the same, the ante increases the average cost by exactly the same proportion as the stake. You are paying for a different shape of results, more frequent features with the same long-run return, not a better deal. Our slot cost calculator lets you run the numbers for your own stake.

Ante bets and UK stake limits

Online slot stakes in Great Britain are capped at £5 per spin for players aged 25 and over (from 9 April 2025) and £2 per spin for those aged 18 to 24 (from 21 May 2025). The Gambling Commission's online slots stake limit guidance (opens in a new tab) counts all stakes placed within a game cycle, so the ante is included. With a 25% ante, the highest base bet an 18 to 24-year-old could choose is £1.60, because £1.60 plus 40p reaches the £2 cap. Our online slot stake limits page has the full rule.

An ante bet is not the same as a bonus buy, which charges a large one-off sum to jump straight into the feature. Slots supplied to UK-licensed casinos do not offer bonus buys, as explained on our bonus buy in the UK page, but an ante that raises the cost of every spin can still appear in some UK versions.

Which slots have an ante bet option

The toggle is closely linked with Pragmatic Play (opens in a new tab) games, where it often appears under a label such as "double chance". Its scatter-pays titles like Sweet Bonanza and Gates of Olympus are frequently cited examples, but whether the option shows depends on the version a casino runs. Other studios use the same idea under different names, so the only reliable check is the game's own settings and rules page.

Open the game and look for a switch near the spin button marked ante, double chance or similar.
Open the help screen and find the section describing the option.
Note how much it adds to each spin and what it changes.
Check whether a separate RTP is listed for ante mode.
Recalculate your session budget with the higher per-spin cost before switching it on.

Bet level: the setting that scales your base stake before any ante is added.
Trigger: the event that starts a feature, which the ante usually makes more likely.
Variance: how widely results swing, which changes when an ante alters the feature rate.
Max bet: the highest total stake a game allows, ante included.

Ante bets, partner offers and where to play

Neither of our closest partner offers depends on using an ante bet, and free spins from an offer are normally played at a fixed value, so the ante toggle does not apply to them. Coral Casino gives new players aged 18+ who deposit and bet £10 or more on slots 100 free spins on selected games, worth 10p each; accept them within 48 hours and use them within 7 days, with no wagering on winnings. Ladbrokes Casino gives new customers aged 18+ who deposit and spend £10 on slots 50 free spins a day for 10 days, up to 500 in total, at 10p each, claimed before 23:59 daily and valid for 7 days with no wagering. Some deposit methods are excluded at both and terms apply; as the two brands share an operator, check whether you can hold new accounts at each.

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Frequently asked questions

What does ante bet mean in slots?

An ante bet is an optional extra amount added to every spin in exchange for a change to the game's rules. Most often the change is a higher chance of triggering free spins, though some games add symbols or modifiers instead. It is switched on with a toggle and stays on until you turn it off. Because it raises your stake on each spin, it raises how quickly your balance is used too. See our bonus trigger odds explainer for how feature chances are set.

Is the ante bet worth it?

It depends on what you want from the session, because the ante rarely improves the long-run return. If the RTP is the same in both modes, you pay proportionally more per spin and get features more often in exchange. That suits someone who mainly plays for the bonus round and accepts a faster-moving balance. If you want your budget to last, leave it off. Our guide to how long your money will last on slots shows the effect of stake on session length.

Does the ante bet change the RTP?

Sometimes. Certain games keep an identical RTP in both modes, while others publish a separate figure for ante mode that can be slightly higher or lower. The only way to know for a particular slot is to open its help screen, which must set out the game rules. Our guide on how to find a slot's RTP walks through where the figure is shown, and RTP variants explains why the same game can run at different settings.

Does the ante bet count towards the UK stake limit?

Yes. The stake limit covers everything you commit within a game cycle, so the base bet and the ante are added together. Players aged 25 and over can stake up to £5 per spin and those aged 18 to 24 up to £2, so with an ante switched on, the highest base bet available is lower than it would be otherwise. Games and casinos enforce this automatically. Read the details on our stake limit for 18 to 24-year-olds page and the general maximum stake question.

Is an ante bet the same as buying the bonus?

No. A bonus buy charges a large one-off price, often many times the stake, to start the feature immediately. The ante, by contrast, charges a smaller surcharge on every spin and only improves the chance of the feature; you still have to land it. Slots at UK-licensed casinos are supplied without the buy option, while ante toggles can still appear. The bonus buy in the UK page explains the difference, and what triggers a bonus round covers how features start.

Can I use the ante bet with free spins from a casino offer?

Usually not. Promotional free spins are set at a fixed value, such as 10p each, on named games, so the stake and any extras are decided by the casino rather than by you. If an ante were allowed it would change the value of the spin, which the offer terms do not permit. Always read the offer terms for the game list and spin value. Our guides to 10p free spins and how to claim free spins cover how these spins work.

Why do some slots call it double chance?

Double chance is a marketing label some studios use for the same idea: an extra charge on each spin that improves the odds of landing the scatters. The name describes what the game designer intended, but the exact effect is defined in the help screen, not the label. Treat the wording as a prompt to read the rules. For more on how scatters start features, see the scatter symbols page and our glossary of slot terms.

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