US online casino revenue reaches new highs as top online casino platforms compete for market share in 2026

The US online casino sector closed 2025 as the fastest-growing segment of a record commercial gaming market and carried that momentum into the opening quarter of 2026. Combined iGaming gross gaming revenue across the seven regulated states reached 10.74 billion dollars in 2025, a 27.6 percent jump over 2024, according to the American Gaming Association state-of-the-industry tally released on 27 February 2026. That result sat inside a wider 78.72 billion dollar commercial gaming year, the fifth consecutive record, and it pushed online casino from a supporting line item into the headline growth story for operators, state budgets, and capital markets. The pace has not cooled since. February 2026 alone produced 976.3 million dollars in US iGaming revenue, up 25 percent year over year and confirming that the seven-state footprint is still compounding rather than levelling off.

Reading that revenue total without looking at who actually collects it misses the story of 2025 into 2026. Roughly ninety percent of regulated US iGaming revenue now runs through a short roster of brands, and the top online casino platforms active across all seven legal states are the first unit of analysis for anyone mapping the concentration. Working through that operator list state by state is where the gap between headline revenue and headline earners becomes concrete: the same five or six names account for most of the handle in every regulated market, and the long tail is narrower than the growth curve suggests.

How the 2025 revenue picture ended

Full-year 2025 numbers reported by state regulators between 14 January and 24 February 2026 confirmed three things. First, every regulated US iGaming state set a new annual record. Second, the top three jurisdictions all crossed their prior ceilings by a wide margin: New Jersey closed the year at roughly 2.91 billion dollars in iGaming GGR and surpassed Atlantic City land-based casinos for the first time, Pennsylvania posted roughly 2.71 billion dollars in online casino GGR, and Michigan recorded 3.1 billion dollars in iGaming gross receipts, with 3.8 billion dollars once internet sports betting is included. Third, year-over-year growth stayed at or above 22 percent in each of the three largest markets, which shows that maturation has not yet translated into a plateau. Those outcomes arrived alongside a 9.2 percent overall commercial gaming rise and a 28.7 percent jump in the iGaming line within the national tracker, making online casinos the most quoted segment at Q4 2025 earnings calls across the listed operator group.

Where top online casino platforms stand in early 2026

Against that revenue backdrop, the operator leaderboard for US online casinos in 2026 is narrower and more concentrated than in any previous cycle. A small group of licensed operators now controls more than 90 percent of regulated iGaming handle across Michigan, New Jersey, Pennsylvania, Connecticut, West Virginia, Delaware, and Rhode Island, and the gap between the leaders and the mid-tier has widened with every quarterly report. Industry readers comparing state availability, live market share, and quarterly results across the top online casino platforms can see that concentration clearly in the state-level filings from January and February 2026, where DraftKings, FanDuel, and BetMGM together account for the majority of revenue in three of the four largest markets, while second-tier licensed US online casinos such as Caesars Palace Online, BetRivers, Hard Rock Bet, and bet365 split the remaining share across the regulated footprint.

Market share data compiled from state regulator filings through February 2026 places FanDuel in the overall lead across the three largest iGaming states by revenue, with DraftKings a close second and BetMGM firmly in third. In Michigan, FanDuel paired with MotorCity reported 817.1 million dollars in 2025 gross receipts to lead the market, while BetMGM paired with MGM Grand Detroit recorded 782.5 million dollars and held the number-two slot for the full calendar year. In New Jersey, FanDuel booked 655.5 million dollars across 2025 and took the operator lead from DraftKings, which finished at 569.8 million dollars. Pennsylvania presented a different pattern: Hollywood Casino at Penn National anchored the top licensee group at roughly 1.1 billion dollars in combined partner revenue across 2025, while FanDuel operating through the Valley Forge licence produced 274.2 million dollars of that figure and remained the largest single brand in the state. Beyond the top three, Caesars Palace Online, BetRivers, Hard Rock Bet, bet365, Fanatics Casino, and Golden Nugget Online each held a meaningful but single-digit share across at least two of the seven regulated markets.

State-level GGR snapshot: 2024, 2025, and 2026 year to date

The table below compiles calendar-year iGaming GGR from state regulator filings for the seven regulated US online casino markets, alongside the most recently reported 2026 monthly figure available as of early April 2026. Percentages reflect year-over-year change from 2024 to 2025. Rhode Island launched in March 2024, so the 2024 column captures a partial year of operation rather than a full twelve months.

Taken together, the seven regulated markets produced roughly 8.9 billion dollars in 2025 iGaming GGR, and the January and February 2026 reports suggest the full-year 2026 figure is on track to cross 10 billion dollars even without a new state opening during the year. Michigan set a single-month record of 322.1 million dollars in March 2026, while Pennsylvania cleared 330.8 million dollars in March 2026 for its highest monthly total on record.

Operator strategy: How cross-selling from sports betting reshaped the stack

Cross-selling from sports betting into online casino accounted for an outsized share of 2025 growth. Operator filings and investor-day presentations through the first quarter of 2026 indicate that conversion rates from active sportsbook accounts into first-deposit iGaming accounts have risen from roughly 12 percent in 2021 to between 20 and 25 percent across legal US jurisdictions as of early 2026. DraftKings reported 1.144 billion dollars in third-quarter 2025 revenue on the strength of this mix, with the iGaming line outpacing sportsbook growth for the second consecutive quarter. BetMGM reached adjusted EBITDA positivity for the first time in the third quarter of 2025, posting 41 million dollars on 667 million dollars in revenue, a turn that management attributed directly to casino-led retention in Michigan and New Jersey. Entain confirmed the shift again in its Q1 2026 business update released on 16 April 2026, when the BetMGM joint venture reported 696 million dollars in quarterly revenue with iGaming growth described as the principal offset to softer sports-betting hold.

Tax rates and the fiscal case legislators are weighing

Tax rates on iGaming vary widely across the seven regulated states and have become one of the most-discussed variables in legislative debates in 2026. New Jersey applies a 17.5 percent effective rate on online casino GGR, Pennsylvania charges 54 percent on online slots and 16 percent on online table games, Michigan uses a graduated 20 to 28 percent schedule depending on the licensee, West Virginia holds the rate at 15 percent, Connecticut at 18 percent, Delaware above 50 percent after revenue share, and Rhode Island at 51 percent. Pennsylvania alone generated over 1.1 billion dollars in state iGaming tax revenue in 2025 on the strength of the slot rate, and Michigan collected 624.6 million dollars in combined taxes and state payments across iGaming and online sports betting for the year. Those figures have fed directly into the 2026 legislative cycle in states such as New York, Maryland, Illinois, and Ohio, where tax yield is central to the fiscal argument being made for a new iGaming framework.

Where to read the full state-of-the-industry breakdown

Operator and regulator commentary released alongside the Q4 2025 data emphasised that the 27.6 percent iGaming rise was the single largest segment contributor to the record year. Readers tracking the state-by-state totals and tax collection figures behind that headline can work through the underlying table in the AGA record 2025 commercial gaming revenue report published by Yogonet on 27 February 2026, which lays out the combined 78.72 billion dollar national total alongside the 10.74 billion dollar iGaming line and the 16.96 billion dollar sports-betting line. The same breakdown also captures the 22.8 percent rise in online sports betting that shares the digital-gaming footprint with iGaming in every regulated state, which matters because five of the seven iGaming markets also offer mobile sports betting through the same licensees.

M&A and partnership shifts that moved the 2026 leaderboard

The competitive picture at the top of the US online casino stack changed twice in the last eight months. The first shift came on 6 November 2025, when ESPN and Penn Entertainment mutually terminated the ESPN Bet partnership, two years into a ten-year framework, with a final 38.1 million dollar settlement payment and a rebranding of the Penn app to theScore Bet in the US market. The same day, DraftKings secured a multi-year integrated marketing agreement across the ESPN ecosystem, a rollout that was completed during December 2025 and January 2026. The second shift came from Penn's strategic pivot to put its iCasino book at the centre of its digital plan, with the company continuing to operate iGaming through its DraftKings-branded platform in five states and the Golden Nugget Online Gaming brand in four states plus Ontario. DraftKings separately confirmed its continued consolidation around the Golden Nugget Online Gaming assets acquired in 2022, which remain a meaningful contributor to its New Jersey and Michigan market share in the 2025 full-year filings.

Trade press reading on the Penn, ESPN, and DraftKings reshuffle

The ESPN and Penn unwind has been covered in depth by trade and financial outlets, and readers comparing the commercial terms of the original 2023 agreement with the 2025 termination package can consult the Sportico coverage of the Penn, ESPN, and DraftKings reshuffle from 6 November 2025 for the settlement structure, the revised equity warrants, and the strategic read on why the integrated marketing model has now shifted to DraftKings. That same article sets out the competitive implications for Caesars, MGM, and Fanatics, each of which has repositioned its own media-adjacent marketing plan during the first quarter of 2026 in response to the reshuffle at the top of the stack.

Dated 2025 and 2026 shifts worth tracking

The following timeline captures the milestones that have moved US iGaming revenue and operator market share since the start of 2025, each dated to its regulator filing, press release, or state announcement.

• 14 January 2026: New Jersey Division of Gaming Enforcement confirmed 2.91 billion dollars in 2025 iGaming GGR, surpassing Atlantic City land-based casinos for the first time.

• 21 January 2026: Michigan Gaming Control Board reported 399.8 million dollars in December 2025 iGaming and online sports betting revenue and 3.8 billion dollars for the full year.

• 27 February 2026: American Gaming Association released its state-of-the-industry report with a 10.74 billion dollar national iGaming total and a 27.6 percent year-over-year rise.

• 2 March 2026: Pennsylvania Gaming Control Board posted January 2026 iGaming revenue of 316.2 million dollars, the second-highest month in state history.

• 16 April 2026: Entain confirmed BetMGM Q1 2026 revenue of 696 million dollars, with iGaming growth offsetting sports-betting softness, during its scheduled business update.

• 20 March 2026: FanDuel and DraftKings rescinded their American Gaming Association memberships over prediction-market positioning, reshaping the trade-body dynamic for the remainder of 2026.

• 6 November 2025: Penn Entertainment and ESPN terminated the ESPN Bet partnership, triggering the DraftKings integrated marketing deal and a rebrand of the Penn app to theScore Bet.

Each of those dates has produced follow-on commentary from state regulators, operator investor-relations teams, and trade-press outlets, and taken together they form the practical timeline that analysts reference when comparing the operator stack across the first full year of the 28 percent iGaming rise.

What to watch through the remainder of 2026

Three signals are worth monitoring through the rest of the 2026 calendar. The first is whether any eighth regulated US iGaming markets opens during the year. Maine launched a limited tribal iGaming framework in early 2026, and New York Senate Bill S2614 moved through committee hearings during February and March 2026 with a proposed tax rate in the low thirties. The second is the quarterly cadence at the top of the operator stack: FanDuel, DraftKings, and BetMGM are each on track to report Q2 2026 numbers in late July and early August 2026, and the three releases will determine whether the concentration ratio climbs above 92 percent or stabilises at the 2025 level. The third is tax policy: Pennsylvania legislators reopened the 54 percent online slot rate question in March 2026, and the Michigan graduated schedule is under review in parallel, with any change likely to shift margin assumptions across the entire listed operator group. For industry readers, those three threads will define whether the second half of 2026 produces another record or the first year of genuine cooling since 2021.