GGR (Gross Gaming Revenue) is the amount players lose over a period, measured before any operating costs. It is the headline revenue figure in iGaming and the basis on which most gaming taxes, licence fees and game-studio royalties are calculated.

The formula is straightforward:

GGR = Total stakes − Total winnings paid to players

If players wager €1,000,000 in a month and win back €940,000, GGR is €60,000.

Why GGR matters to operators

Regulators favour GGR because it is difficult to manipulate and simple to audit. Providers quote commercial terms against it, and it is the standard figure for benchmarking one brand against another. What GGR does not show is profitability — bonuses, taxes and fees all sit below it.

For the profit view, see NGR, and for a full worked example read GGR vs NGR.