This is an educational guide to how UK online gambling works. Figures such as RTP and house edge are typical industry values and vary by game and operator. No game can be beaten in the long run — play for entertainment, never as a way to make money, and only stake what you can afford to lose.
How Are Casino Jackpots Funded?
Those headline seven-figure jackpots have to come from somewhere — so where does the money actually come from? It’s simpler than you might think.
A slice of every bet
Progressive jackpots are funded by players. Each time someone plays an eligible game, a small portion of their stake is added to the jackpot pool. That pool keeps growing until someone wins it, then resets and starts building again.
The RTP trade-off
Because part of each bet feeds the jackpot rather than returning as normal wins, progressive games often have a slightly lower base-game RTP than non-jackpot games. You’re effectively trading a little regular return for a shot at the big prize.
Why networked jackpots get huge
Networked progressives pool contributions across many games, or even many casinos, at once. With so many players feeding one pool, the jackpot can climb extremely fast to enormous sums. See how progressive jackpots work, jackpot slots and daily jackpots.
Frequently asked questions
Where does jackpot money come from?
From players’ bets — a small slice of each eligible stake is added to the jackpot pool until it’s won.
Does that lower the base game RTP?
Often slightly, because part of each bet feeds the jackpot rather than returning as normal wins.
Are networked jackpots bigger?
Yes — pooling bets across many games or casinos lets networked jackpots grow much faster.
Related guides: how progressive jackpots work, jackpot slots and daily jackpots.