Ontario Online Casinos Hit CA$326.4 Million Revenue Record in May as Growth Rates Continue to Moderate
Ontario online casinos posted a new monthly revenue high in May with CA$326.4 million. The figure tops the previous record of $320.7 million set in December and marks a 4% increase from April’s $314.1 million. It also represents a 25.6% jump from May of the prior year when the province generated $259.8 million.
The data comes from iGaming Ontario. After eighteen years across iGaming and sportsbook operations I see these consistent records as evidence the market has found its stride. Yet the slowing growth rates deserve close attention from operators and suppliers.
Lowest Growth Rate for 2026
Ontario online casinos continue to set new highs. The year-over-year growth rates tell a different story.
The province posted 40%+ growth in the final months of 2025. In 2026 it has stayed under 30% in three of the first five months despite four months clearing the $300 million revenue mark.
The monthly gains break down as follows:
- January 2026: Up $77.9 million (33.7%)
- February 2026: Up $61.7 million (28.8%)
- March 2026: Up $76.8 million (31.8%)
- April 2026: Up $71.3 million (29.4%)
- May 2026: Up $66.6 million (25.6%)
Total year-over-year revenue gains have dropped below $70 million per month after regularly exceeding $90 million at the end of 2025. This deceleration is the clearest signal yet that the early hyper-growth phase is easing.
From the supplier side this kind of pattern is what prompts tighter product roadmaps. Operators start asking harder questions about retention mechanics when the topline lift slows.
Ontario on Track for CA$4 Billion in 2026
Ontario online casinos closed 2025 with a record CA$3.15 billion in revenue. That was a 40% improvement over 2024’s $2.25 billion.
Through the first five months of 2026 the province has generated $1.54 billion. That sits 29.4% ahead of the same period in 2025 when revenue reached $1.19 billion.
The monthly breakdown shows steady strength:
- January: $310.0 million versus $231.0 million
- February: $275.7 million versus $214.0 million
- March: $318.5 million versus $241.7 million
- April: $314.1 million versus $242.8 million
- May: $326.4 million versus $259.8 million
If the current growth rate holds the province would finish the year just over $4 billion. That would represent another material step up from the 2025 record.
The trajectory looks solid on paper. Execution across the licensed operator pool will decide whether the projection materializes.
Online Casino Wagers Also Reach New High
May produced a record CA$8.37 billion in wagers. The total edged past the prior high of $8.33 billion recorded in March.
Ontario has now cleared $8.1 billion in wagers in five of the last six months. The province first crossed the $8 billion threshold in December 2025.
The recent monthly figures read:
- December 2025: $8.27 billion
- January 2026: $8.21 billion
- February 2026: $7.65 billion
- March 2026: $8.33 billion
- April 2026: $8.14 billion
- May 2026: $8.37 billion
Higher handle paired with record revenue suggests stable or slightly improved hold percentages. That combination is what commercial teams want to see when negotiating platform contracts.
Risks and Limitations in the Data
Sustained records can mask underlying pressure points. The declining year-over-year growth rates stand out as the most immediate concern.
A market that delivered 40%+ lifts late in 2025 now sits at 25.6% in May. If that trend continues into the second half the path to $4 billion becomes narrower than the five-month average implies.
Competition among licensed operators has intensified. New customer acquisition costs likely rose as the addressable base matures. Retention and cross-sell become the primary levers.
Regulatory or tax changes could also alter the economics. The current figures reflect the existing framework. Any tightening would flow straight through to the P&L.
The data does not break out performance by operator or vertical. That limits how precisely suppliers can target product improvements. Aggregate records are useful but granular insight drives the next margin point.
After eighteen years in the space I have seen similar maturation curves in other regulated markets. The topline keeps climbing but the percentage gains compress. Winners separate on product depth and operational efficiency rather than raw growth.
The Bottom Line
Ontario online casinos delivered another record month in May with CA$326.4 million in revenue and CA$8.37 billion in wagers. The five-month total of $1.54 billion positions the province for a potential $4 billion year. Yet the steady drop in year-over-year growth rates from over 40% to 25.6% shows the market is transitioning from explosive expansion to steady-state performance. Operators should treat this as a prompt to stress-test retention engines and acquisition efficiency before the second half. Suppliers that can demonstrate measurable lift in hold or engagement will find the most receptive audiences in the coming quarters. The numbers remain strong. The question is who adapts fastest to the new slope of the curve.
