What is Gross gaming revenue?
Gross gaming revenue (GGR) is the total amount staked by customers minus the winnings paid out to them, before bonuses, taxes and operating costs are deducted.
If players wager £1 million on an operator's slots and receive £960,000 in winnings, the GGR is £40,000. In Great Britain the same measure is officially called gross gambling yield, or GGY. It is the industry's standard headline figure for market size and operator performance.
Many gambling taxes are levied on GGR. In the UK, Remote Gaming Duty on online casino rose from 21% to 40% of profits on 1 April 2026. Because tax is charged on revenue rather than stakes, GGR is the base for comparing fiscal regimes across countries.
GGR should not be confused with turnover or handle, which is the total amount wagered and is many times larger. GGR is also used to rank markets and companies in industry league tables.
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