Ontario’s licensed online gambling operators made their second-highest monthly revenue total ever in April 2025.

iGaming Ontario’s (iGO) latest figures, published on Wednesday, show that the province’s 49 iGO-managed online casinos and sportsbooks took a collective $313.3 million in non-adjusted gross gaming revenue (NAGGR) last month. That was a 5.8% monthly increase from March’s total of $296.0 million and a year-over-year rise of 25.3%.

It means that the first month of the Ontario regulated market’s fourth year of existence ranked second out of 37 months for operator revenue. April 2025 was beaten only by January 2025, when platforms took a record $328.4 million.

NAGGR, the metric iGO uses to track revenue, includes total cash wagers, including rake fees, tournament fees and other fees, minus player winnings.

April’s podium position came despite the fact that gaming volume dipped slightly month-over-month, down from an all-time high of $7.96 billion in March to $7.79 billion. Still, the April 2025 handle is up 26.4% from April 2024.

There were 1.09 million active player accounts as of April 30, 2025, each producing an average revenue for operators of $287.

Did we mention casino is king?

As always, online casino gaming dominated in April, accounting for 84% of player spend ($6.58 billion) and 78% of gross revenue ($242.8 million).

Those totals were up 29.4% and 35.4% year-over-year, with the growth in operators’ revenue notably exceeding the increase in player spend on that vertical. The April onelinc asino revenue number was the biggest in the province’s three-year history.

Online casino in iGO’s numbers includes online games such as slots, table games, live dealer and peer-to-peer bingo.

Ontario online sportsbooks are making less money than last year

Highlighting the fact that online casino reigns supreme was the sports betting data.

Sports wagering spending was at its second-lowest total since last October, at $1.07 billion, down 10% from March and up a modest 14.1% year-over-year. Sports betting revenue was $64.5 million in April, a big 34% rebound month-over-month from a poor March but a 0.9% decline year-over-year.

That means that for the second month in a row, while Ontario sports betting handle grew year-over-year, Ontario’s regulated online sportsbooks made less money than they did in the corresponding month in 2024. In March, sportsbook revenue of $48.0 million was down 6.1% from March 2024’s $51.1 million.

Ontario gamblers approaching $200B spend — plus the rest

April 2025’s results mean that in three years plus an extra month, Ontarians have wagered $189.3 billion on online casino gaming, sports betting and poker. Licensed operators have made nearly $7.4 billion, yielding close to $1.5 billion in tax revenue for the province.

iGO’s reporting does not include activity on Ontario Lottery and Gaming’s (OLG) platforms. The government-run operator, which is not part of iGO’s reporting remit and is effectively the market’s 50th licensed operator, ostensibly holds around 20% of the province’s regulated online gambling market by revenue share.

It also does not include what Ontarians are still spending on unlicensed sites. Ipsos data published last month suggested that 16.3% of Ontario gamblers wager only on unregulated websites and one-fifth of the rest gamble on unlicensed sites as well as licensed ones.

Last week, the Alcohol and Gaming Commission of Ontario (AGCO), publicly called upon media platforms to stop advertising unregulated online gambling sites in the province, specifically calling out offshore operator Bodog. The market regulator and formerly iGO’s parent organization added that, by advertising unregulated online casinos and sportsbooks, legitimate media offer those operators “a veneer of legitimacy” and add to consumer confusion.