Guide
What is House Edge?
The house edge is the mathematical advantage the casino holds on every bet. If a game has a 4% house edge, the casino expects to keep 4% of everything staked on it over the long run. It is the flip side of RTP: a 96% RTP slot has a 4% house edge.
It is a long-run average
The house edge says nothing about a single session — players win and lose in the short term all the time. It only describes the average across millions of bets. That is why big short-term wins are completely possible even though the house edge never changes.
Why it matters for bonuses
Every bet you make to clear a wagering requirement pays the house edge. That is the hidden cost of rollover, and exactly what our wagering calculator measures — so you know a bonus’s real value before you take it.
Skorsky puts this honesty into its bonuses: your first withdrawal is doubled, 30% of losses come back as cash, and every offer is graded on the Bonus Honesty Index. Check any bonus with the wagering calculator first.