RTP and house edge
Every casino game keeps a share. This is how to find it.
By Ryan Jessop. Last checked .
Key takeaways
- RTP: what comes back.
- House edge: what is kept.
- Slots: about 4%. Blackjack: about 0.5%.
- A long-run average.
VerdictReturn to player is the share of stakes a game pays back over time; the house edge is the rest. A 96% slot keeps £4 of every £100 staked, on average.
Typical figures
| Game | House edge | Cost of £100 staked |
|---|---|---|
| Blackjack, good rules and basic strategy | About 0.5% | About 50p |
| Baccarat, banker | 1.06% | £1.06 |
| European roulette | 2.70% | £2.70 |
| Online slots | About 4% | About £4 |
| American roulette | 5.26% | £5.26 |
Standard published figures for standard rules.
The session sum
Stake, times number of rounds, times house edge. Two hundred spins at 20p on a 96% slot is £40 staked and about £1.60 of cost on average. One session can end far from that.
Where to find a game's figure
Slots show their RTP in the help screen. Table games' edges follow from their rules, shown on the table.
Does a best casino pay more?
No casino has one payout rate. The same slot can run at different settings at different casinos, so check the game.
Keep reading: Best online casino for slots, Best online casino for beginners and Coral Casino review.
Go further: Coral vs PlayOJO, Casumo vs 10bet and Real money casinos UK.
More: Betting sites UK and Sweet Bonanza UK.
Scores are desk-based: they draw on each casino's published terms, the public register and recent independent reviews, not on real-money accounts. Where scores tie we say so and name the tie-break. Offer terms dated 5 October 2026. How we score. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What is RTP?
The share of stakes a game returns over time.
What is the house edge?
100% minus RTP.
Which game has the lowest edge?
Blackjack, played well.
Do casinos differ in payout?
Per game version, not as a whole.