Bonus Buy Slots RTP Guide — Is Buying the Bonus Worth It?

What Is a Bonus Buy Feature

Bonus buy — also called feature buy, bonus purchase, or ante bet — is a mechanic that lets you pay a fixed amount to instantly trigger a slot's bonus round. Instead of spinning the base game and waiting for scatter symbols to land naturally, you pay a premium (typically 60x to 100x your bet) and go straight into free spins, pick-and-click bonuses, or whatever the game's main feature is. This mechanic was popularised by providers like Hacksaw Gaming, Nolimit City, and Pragmatic Play, and has become one of the most requested features in modern slot design. The appeal is obvious — no more grinding through hundreds of base game spins waiting for a trigger that might never come.

How Bonus Buy Affects RTP

This is where things get interesting and where most players get confused. Many slots have a different RTP when using the bonus buy compared to playing the base game normally. Sometimes it is higher, sometimes lower, and sometimes identical. The direction and size of the difference depends entirely on the game's mathematical model — and on the deployment-tier choices the operator makes, which we cover in how casinos change RTP.

For Pragmatic Play titles, the bonus buy RTP is often slightly lower than the base game RTP. Gates of Olympus, for example, has a theoretical RTP of 96.50% in normal play but 96.48% when using the bonus buy. The difference is negligible in this case. However, other Pragmatic titles can show a slightly larger gap, with the bonus buy version sitting 0.1% to 0.5% lower.

Hacksaw Gaming takes a different approach. Many of their games have nearly identical RTP whether you buy the bonus or trigger it naturally. Some even have marginally higher RTP on the bonus buy. Nolimit City games also tend to have minimal RTP variation between normal play and feature buy.

The key point is that you cannot assume the RTP is the same. Always check the specific game's rules or look it up on RTPTrack where we display both the standard and bonus buy RTP when they differ. The bonus round itself is governed by a separate maths model — see RTP during free spins for how the in-bonus return is calculated and why it can diverge from the headline figure.

The Real Cost of Buying Bonuses

The bonus buy price is expressed as a multiple of your base bet. If your base bet is £1 and the bonus costs 100x, you are paying £100 for a single bonus round. This is the most important number to understand because it fundamentally changes your session economics.

In normal play at £1 per spin, you might average 200-400 spins per hour depending on your pace. Your total wagered in an hour would be £200-£400, and variance would smooth your results somewhat over that many spins. When you buy a bonus at £100, you are concentrating that entire wagered amount into a single high-variance event. The outcome of one bonus round can range from a near-total loss (winning back only 5x-20x of the cost) to a massive payout (hundreds or thousands of times the cost).

This concentration of variance is the real trade-off of bonus buying. You are not changing the long-term expected value by much — the RTP difference is usually small. What you are doing is dramatically increasing the volatility of your session. Each bonus buy is a large single bet with a wide range of outcomes. Your bankroll needs to be sized accordingly — the session EV calculator is the most direct way to model how this concentration affects bust risk on your specific bankroll.

When Buying Makes Mathematical Sense

From a pure expected value perspective, the bonus buy is almost never meaningfully better or worse than normal play. The RTP difference is typically under 0.5%, which means over £10,000 wagered, the difference is less than £50. The mathematical edge is marginal either way.

Where bonus buying does make practical sense is in time efficiency. If you value your time and the primary enjoyment you get from a slot is the bonus round, paying to skip the base game is a rational choice. You are paying a premium for entertainment, not for mathematical advantage. Many bonus buy players prefer this because the base game on high-volatility slots can be genuinely tedious — hundreds of low-value or zero-value spins waiting for scatters. White Rabbit is a frequent example: extreme base-game volatility makes the feature buy a popular shortcut for players targeting the bonus round directly.

Where bonus buying does not make sense is when your bankroll cannot sustain the variance. If you have £200 and you buy two bonuses at £100 each, you are playing a two-event lottery. Both bonuses could return less than you paid, and your session is over in under a minute. The same £200 spread across 200 base game spins gives you more time, more events, and a better chance of encountering positive variance somewhere in the session.

Bonus Buy RTP Across Providers

Different providers handle bonus buy RTP differently, and knowing these patterns helps you make better choices. For a curated catalogue of the highest-RTP feature-buy titles available outside the UK, see the best bonus buy slots by RTP.

Pragmatic Play games typically show a small RTP reduction on bonus buy, usually 0.02% to 0.50%. The in-game rules section always displays the bonus buy RTP separately, so check before you purchase.

Hacksaw Gaming tends to offer nearly identical RTP on both modes. Games like Wanted Dead or a Wild and Chaos Crew have minimal difference. This makes Hacksaw a popular choice among dedicated bonus buyers.

Nolimit City also maintains close parity between modes on most titles. Their games often offer multiple bonus buy tiers at different prices, each with its own RTP that you can compare in the game rules.

Big Time Gaming varies by title. Some Megaways games with bonus buy show a noticeable RTP difference, while others are nearly identical.

Push Gaming and ELK Studios generally keep RTP consistent across modes, though their bonus buy offerings are fewer.

Regulatory Restrictions on Bonus Buy

Not all markets allow the bonus buy feature. The UK Gambling Commission banned the feature buy mechanic in October 2021 for UK-licensed casinos. If you are playing at a UKGC-regulated casino, bonus buy options will not be available regardless of the game or provider. This regulation was introduced over concerns that the feature increases gambling intensity and encourages higher spending in shorter periods.

Players in other European markets, including Malta, Curacao, and most Scandinavian jurisdictions, can still access bonus buy features. If you are playing at an internationally licensed casino, the feature will typically be available.

This is important context when reading RTP data. If you are a UK player, the bonus buy RTP is irrelevant to you — you will always be playing in normal mode at the standard RTP. Check our country page for the UK for more on regulatory specifics.

Our Advice on Bonus Buying

Bonus buying is neither good nor bad — it is a different way to play. The RTP impact is usually small enough to be insignificant. The real considerations are bankroll management and personal preference. If you enjoy bonus rounds and have the bankroll to absorb high-variance outcomes, buying bonuses is a perfectly valid approach. If your budget is limited, normal play gives you more time and more spins to work with.

Whatever you choose, always check the specific bonus buy RTP for the game you are playing. Do not assume it matches the standard RTP. And never buy bonuses with money you cannot afford to lose in a single click.