A casino’s advertised return-to-player rate is one of the few figures you can check independently before spending a penny. In the United Kingdom, every licensed operator must publish game rules and theoretical RTP data, and the Gambling Commission requires that randomness be tested by an approved laboratory. Knowing where to look turns a marketing claim into a verifiable number. Below is a practical method for checking payout percentages properly, from the licence register to the drill-down figures buried in a game’s help screen. Check out additional details at casino apple pay deposit uk.
Start With the Licence and the Testing Lab
First, confirm the operator appears on the Gambling Commission’s public register. A licence number displayed in the footer should match the register entry exactly. If it does not, stop there , an unlicensed site has no obligation to report honest figures.
Next, look for the testing house. Legitimate UK casinos publish certificates from labs such as eCOGRA, GLI, BMM Testlabs or NMi. These audits typically sample millions of game rounds and compare actual returns against the theoretical figure, with tolerances often set within 0.5 percentage points. A site that names its lab and links to a current certificate is showing its workings; one that simply prints “97% payout” in a banner is not.
Check the date on any certificate. RTP figures are re-tested when games are updated or software is swapped, so a report older than about two years deserves a second look.
Read the RTP Where It Actually Lives
The headline payout figure is rarely a single number. Most casinos publish RTP per game, and the differences matter. Slots commonly sit between 94% and 96.5%, but some titles ship in multiple versions , a 96% configuration for one market and a 94% version elsewhere. The only reliable source is the in-game information panel, usually behind an “i” or question-mark icon.
Table games and live dealer offerings work differently. Blackjack RTP shifts with the rule set: paying 6:5 rather than 3:2 on a natural drops the return by roughly 1.4 percentage points, while a dealer hitting soft 17 costs about 0.2%. Always read the specific table rules rather than trusting a category average.
Remember that RTP is a long-run theoretical figure, not a promise for a single session. A 96% slot can return 200% over fifty spins and 60% over five hundred. It describes the machine, not your evening. For a wider view of what fair pricing looks like across bonuses and spins, see how free spins are priced to the press.
Cross-Check the Numbers Yourself
Independent databases are useful for a second opinion. Sites such as Slot Tracker and the UK-focused review portals list RTP by game and version, and player-run trackers aggregate real spin data. Compare these against the casino’s own figure; a gap of more than a percentage point is worth querying with support.
You can also sanity-check the published figure against the house edge. At 96% RTP the edge is 4%, meaning average losses of £4 per £100 staked over time. If a game advertises 99% but behaves like a 90% title, the maths will not reconcile.
| Check | Where to Find It | What to Look For |
|---|---|---|
| Licence | Gambling Commission register | Exact match on licence number |
| Lab certificate | Footer or “fairness” page | Named lab, recent date |
| Game RTP | In-game help panel | Version-specific figure |
| Player data | Independent trackers | Within 1% of published RTP |
Finally, treat bonus terms as part of the payout picture. Wagering requirements and game-weighting rules can cut the effective return on a promotion well below the base game’s RTP, so read the small print before you compare offers.