Promos Eat Half Of Michigan Sports Betting Revenue

Written By:

Michael Molter

Published On:

October 26, 2026 12:12 PM

Promos Eat Half Of Michigan Sports Betting Revenue
  • Michigan sportsbooks won $55.5 million in September, but deductions cut $30.6 million before taxes.
  • bet365 has taken $196.5 million in Michigan bets since its April launch but sits at negative $28.6 million in taxable revenue.
  • The state collected $1.83 million from online sportsbooks compared to $60.6 million from online casinos.

DETROIT – Michigan sportsbooks won $55.5 million from bettors in September, but less than half of it was taxable. The Michigan Gaming Control Board’s September report shows online sportsbooks took $544.8 million in bets, up 3.9% from last year. After deductions, mostly promotional credits, just $24.9 million was left to tax.

That’s $30.6 million, or 55% of everything sportsbooks won, written off before the state got its cut.

Michigan sports betting operators pay 8.4% of adjusted gross receipts, which are calculated after free bets and other promotions are deducted. As a result, the state collected just $1.83 million from online sportsbooks in September, while Detroit received another $548,519.

Believe it or not, that’s an improvement. Last September, deductions swallowed 70% of gross receipts, wiping out $30.4 million of $43.6 million.

bet365 Pays To Play

No sportsbook shows the cost better than bet365. Since launching in April through the Little Traverse Bay Bands of Odawa Indians, bet365 has taken $196.5 million in Michigan bets and won $50.4 million from bettors. But the Board’s operator data shows its adjusted gross receipts sit at negative $28.6 million.

That’s roughly $79 million in deductions in six months, and bet365 has yet to pay Michigan a dollar in taxes.

The heaviest spending came early. In May, bet365 handled $66.8 million but posted negative $15.9 million in adjusted receipts. By August, its handle faded to $15.8 million before rebounding to $30.1 million in September, along with another negative month at -$1.3 million. Hard Rock Bet followed a similar playbook in September as $3.14 million in gross receipts became $230,979 after deductions, a 93% write-off.

Meanwhile, Michigan’s online casinos sent $60.6 million to the state in September, 33 times what sportsbooks paid.

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Ben Fiore

Michael Molter

Michael Molter has worked with LegalSportsBetting since 2018 starting as a content writer. Now the Director of Content, his work analyzes how laws, licensing, and compliance directly impact bettors and operators across jurisdictions. His research has been cited by NASDAQ, Research Gate, and PokerNews, as well as in academic reports from Villanova, Seton Hall, and Fairleigh Dickinson University.