Bonus Buy Slots: What the Feature Price Really Costs You
Bonus termsBy CanadaCasinos editorial teamUpdated 19+ · how we rate
A bonus buy (or feature buy) lets you pay a fixed price to start a slot's bonus round straight away instead of waiting for scatters to land. The price is set as a multiple of your current bet, so it scales with your stake. The purchased round has its own return-to-player figure, which may sit above or below the base game, and most casino bonus terms forbid using it while you wager bonus funds.
In this guide
How the price is set
The buy price is shown as a multiple of your bet per spin, with the cash amount next to it. A price of 100x is common; some games offer several tiers, where a dearer option buys a feature with extra wilds, higher multipliers or more spins. Change your stake and the buy price moves with it.
The provider does not pick that multiple at random. It is tied to how much the bonus round pays on average and how often it would trigger naturally. If free spins land, on average, once in a few hundred spins and pay a certain amount when they do, the price is set so that buying the round returns roughly what the game’s RTP intends. You are paying up front for an outcome you would otherwise reach by spinning.
Here is illustrative arithmetic. At C$1 a spin, a 100x feature costs C$100. If the purchased feature carries a 96% RTP, its expected value is C$96, so each buy costs C$4 on average. The actual payout of a single feature can be C$5 or C$500; the average only appears over many purchases.
Feature-buy RTP versus base game RTP
Open the game’s help screen and you will often see two figures: one for normal play and one for the bonus buy. They can differ in either direction. Some games make the purchase slightly more generous to encourage it; others set it a touch lower. The casino can also run a lower-RTP build of the whole game, which lowers both numbers.
The figure that matters for a purchase is the buy RTP, because the purchase is a separate bet. If you mix base spins and buys in one session, your overall return blends the two.
| Aspect | Triggering naturally | Buying the feature |
|---|---|---|
| Cost to reach the bonus | Spread over many base spins, unknown in advance | Fixed up front, often around 100x the bet |
| RTP that applies | Base game RTP | Separate buy RTP listed in the help screen |
| Swing per decision | Small per spin, larger over a session | Large: one result decides a big chunk of budget |
| Speed of spending | Slower; small wins return some money along the way | Fast; a budget can go in a few clicks |
| Allowed with bonus funds | Usually yes, within max-bet rules | Usually excluded in bonus terms |
Why buying feels more volatile
A slot’s bonus round is where most of its big wins live. Buying it removes the base-game spins that dribble back small amounts, and concentrates your money into a few all-or-nothing events. The long-run cost per dollar wagered may be similar, but the path is far bumpier.
Think about a C$200 budget at C$1 a spin. Spinning, you get a couple of hundred spins with small hits along the way, and maybe one or two natural features. Buying, you get two features. Both could pay below their price, and the session is over in under a minute. Equally, one could land a large multiplier. That spread of outcomes is volatility, not a better or worse deal.
Lowering the bet before buying keeps the price manageable. A buy at C$0.20 a spin with a 100x price costs C$20, which lets the same budget cover more features and smooths the result somewhat.
Enhanced buys and tiered prices
Games with several buy options deserve a closer look. A cheaper tier might start the standard free spins; a dearer one might guarantee extra scatters, a starting multiplier or a special mode that cannot be triggered naturally. Each tier is priced against its own average payout, and the help screen may list a separate RTP for each. The dearer tiers are not better value by default. They push even more of your budget into a single result, so the spread between a poor round and a strong one widens with the price.
A few games also offer a side option that raises the stake per spin in exchange for a higher natural trigger rate. That is not a purchase in the same sense, but it is priced on the same logic: you pay more per spin for more frequent access to the feature. Treat it as a bigger bet, and check whether your bonus terms count it against the max-bet limit.
Why casino bonuses exclude feature buys
Read the terms of almost any deposit match or free spins offer and you will find a clause banning bonus buys while wagering is active. The reasons are practical:
- Turnover goes too fast. A 100x buy counts as one large bet, which would clear wagering requirements in a handful of clicks.
- Max-bet rules. Bonus terms usually cap the size of a single bet. A feature price is almost always above that cap, so a buy breaks the rule even if buys are not named.
- Variance abuse. A player could swing bonus money on a few high-variance purchases and walk away with any lucky result while the casino absorbs the rest.
The penalty is usually forfeiture of the bonus and any winnings from it. If you plan to use a welcome offer, read the game and bet restrictions first; our guides to casino bonus offers and welcome bonuses explain the standard clauses.
Where you will and will not see the button
Availability depends on where the casino is licensed. Great Britain’s Gambling Commission, for example, has told its licensees that feature buy-ins breach its technical standards, so British-facing versions of games leave the button out. In Canada the picture differs between provincially run sites, Ontario’s regulated private market and offshore operators, and the same title may appear with or without the buy option depending on the platform. If the button is missing, the casino is running a version without it; there is no setting you can change.
For a wider look at how real-money slots are configured, see our guide to online slots for real money.
Checklist before you buy a feature
- Read the buy RTP in the help screen and compare it with the base RTP.
- Check the cash price, not only the multiple, and lower your stake first if needed.
- Decide in advance how many buys your budget covers, and stop there.
- Do not buy features while a bonus is active unless the terms clearly allow it.
- Treat a run of losing buys as normal variance, not a sign that the next one is due.
Questions players ask
Is buying the bonus better value than spinning for it?
Not inherently. The price is designed so the purchase returns roughly the game's buy RTP over many attempts. Whether that is slightly higher or lower than base play depends on the game and the version your casino runs. The real difference is volatility: purchases put a big share of your budget on each result.
Why does the bonus buy price change during my session?
Because it is a multiple of your current stake. Raise the bet from C$0.50 to C$2 and a 100x feature goes from C$50 to C$200. Some games also offer several buy tiers at different multiples, so check which option is highlighted before confirming.
What happens if I buy a feature while wagering a bonus?
Most bonus terms list feature buys as a restricted action or breach the single-bet cap with them. The usual consequence is that the casino voids the bonus and any winnings made with it. If you hold an active bonus, check the terms page before using the buy button at all.
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