Michigan Senator Puts Bill Forward to Legalize Social Sports Betting

Michigan lawmakers are weighing a proposal that would finally make those friendly March Madness brackets and Super Bowl squares legal. A bill introduced in the state Senate seeks to carve out an exception for low-stakes wagers among friends and coworkers, a practice that is widespread but technically against the law.

Good to Know

• Senate Bill 511 would allow small-scale sports betting pools among friends if conditions are met.
• The plan includes a $25 maximum wager, 100-participant cap, and prize-only payouts.
• Casinos and tribes in Michigan have voiced concern about the measure.

What the Bill Proposes

Sen. Veronica Klinefelt introduced Senate Bill 511 to amend the Michigan Penal Code and create a legal safe zone for casual betting among “bona fide” friends. Her bill would permit wagers as long as contests meet specific guidelines:

• Incidental to a genuine social relationship.
• Capped at 100 participants.
• No bet greater than $25.
• Entire pool must be returned as prizes.
• Organizer must also play and can only win the prize.
• No contests inside casinos, bars, restaurants, or venues, and no business promotion.

Some senators have suggested raising the maximum wager to $100, but that provision is not in the current draft.

Aiming to Legalize Everyday Bets

Klinefelt said the motivation is simple: to make legal what most people already do. She told colleagues at a recent committee hearing:“

Its sole purpose is to legalize what we do every day, what everybody does all the time, bets their best friend $5 on a football game, people do March Madness and Super Bowl squares with their friends, nobody is making any money.” 

Though the committee heard testimony on the measure, it has not yet advanced to a vote.

Current Law and Penalties

Michigan legalized online sportsbooks and iCasino in 2019, with platforms launching in 2021. But under current law, private bets remain illegal. The Michigan Penal Code still classifies them as a misdemeanor with fines up to $1,000 and possible jail time.

Klinefelt’s bill would raise the fine to $5,000 for non-qualifying wagers, while also establishing protections for informal pools that follow the rules.

While Klinefelt said she has bipartisan backing, she acknowledged casinos are uneasy with the plan. Operators argue that the measure may amount to gambling expansion, which under a 2004 state law requires voter approval. Several tribal gaming authorities have also submitted opposition.

Even so, Klinefelt signaled flexibility:

“I am open to working with people to make the bill more comfortable.”

For now, the proposal sits with the Senate Regulatory Affairs Committee, waiting on whether lawmakers want to formalize what many Michiganders have long considered harmless fun.