A bipartisan group of Michigan senators is pushing a bill that would put small, private betting pools on firmer legal ground, the kind of low-stakes wagers that show up every year around the Super Bowl, March Madness, and office pick groups.

Senate Bill 511, introduced by Sen. Veronica Klinefelt, would create a specific exception in state law for “social wagering,” defined as betting among people who share a bona fide social relationship. The proposal sets guardrails, including a $25 maximum wager per participant, a cap of 100 participants, and a requirement that the organizer takes no fee, commission, or other economic benefit. The bill is moving through the Senate Regulatory Affairs Committee and also pairs the carve-out with tougher penalties for gambling activity that falls outside the exemption.

Supporters describe the measure as clarifying everyday behavior, while critics have raised questions about how the definition would be enforced at the margins.

From Bracket Pools to Squares: What social wagering covers

In the bill’s framing, social wagering is the informal betting that happens between people who already know each other, sometimes one-on-one, sometimes in a group, usually around a sporting event or shared contest.

Backers point to NCAA tournament bracket pools and Super Bowl squares as the obvious examples. The distinction matters because Michigan already permits regulated sports betting and internet gaming through licensed operators, while SB 511 is aimed at small, private pots with no house.

What would Senate Bill 511 change in Michigan law

SB 511 targets Section 301 of the Michigan Penal Code, which makes it a misdemeanor to take or accept money tied to the outcome of a race, contest, game, or uncertain event. Under existing language, the penalty can include up to a year in jail or a fine of up to $1,000, and the bill would raise the maximum fine for violations of the section to $5,000.

The proposal would also add an explicit carveout. If a wager meets seven conditions, it would fall outside the misdemeanor provision. LegiScan lists SB 511 as introduced September 3, 2025, and referred the same day to the Senate Regulatory Affairs Committee, with Klinefelt as lead sponsor and seven co-sponsors spanning both parties.

The seven conditions, and the size of the wager

The text sets a tight definition of the activity it would protect. A legal social wager would need to be incidental to a bona fide social relationship, with no more than 100 participants, and with a maximum total wager of $25 per person.

No additional money or thing of value could be required to take part, and the entire amount collected would need to be paid out as prizes. The organizer must be a participant too, and may not benefit except by being eligible for the same prizes as everyone else.

With the $25 ceiling and the 100-person limit, the maximum pot would be $2,500. Some coverage has pointed to a discussion of raising the cap to $100 in a future amendment, though the introduced text retains $25.

Where the contests could happen, and where they could not

SB 511 also tries to separate social betting from commercial venues. The bill states that a qualifying game or wager may not take place inside a gambling establishment, restaurant, entertainment venue, or bar.

The language also bars a business from promoting the contest with the intent of bringing in extra customers. Combined with the rule against an organizer taking a cut, the restrictions are designed to keep the activity personal, private, and non-commercial.

Why Supporters Say the Law Is Out of Step

During a committee hearing, Klinefelt framed the bill as decriminalizing behavior that is widespread and typically treated as trivial. She said the purpose was to legalize the kind of small bet people make with friends on sporting events.

She also described interest coming from both parties, saying there were lawmakers “on both sides of the aisle” who were interested in the proposal. BonusFinder has highlighted the bipartisan sponsor list as a central part of the bill’s early momentum.

Skepticism has come from lawmakers who argue the issue is largely theoretical because private pools are rarely prosecuted. Reporting on the proposal described Sen. Michael Webber as raising questions about whether new language is necessary.

Supporters counter that the gap between common behavior and the statute still matters, particularly when money changes hands, disagreements arise, or a contest edges toward something that looks like a business.

Tribal and casino objections, and a constitutional debate

Opponents have argued that even a narrow carveout could be treated as gambling expansion. Some casino voices have cited a 2004 constitutional amendment, approved by voters, that requires voter approval for certain forms of gambling authorized by law after January 1, 2004, with specified exceptions.

Reporting around the committee process indicated opposition from multiple tribal gaming interests, including the Nottawaseppi Huron Band of the Potawatomi and the Gun Lake Tribe. Critics have also questioned how courts or regulators would apply the bill’s reliance on a bona fide social relationship.

A Contrast with Michigan’s Regulated Betting System

Michigan already regulates sports betting and online casino-style gaming through commercial and tribal operators overseen by the Michigan Gaming Control Board.

In a January 2021 announcement authorizing online offerings, MGCB Executive Director Richard S. Kalm said the state would “begin a new era” with the launch of regulated online gaming and sports betting on January 22, 2021. SB 511 is not aimed at that licensed market, but at private contests outside it.

What Happens Next in Lansing?

As of late 2025 coverage, the bill remained with the Senate Regulatory Affairs Committee after a hearing in which no vote was taken, leaving it pending for further action.

If the committee advances the measure, it would move to a full Senate vote and then to the House. Any final version would still require a signature from Gov. Gretchen Whitmer to become law.

Reporting has noted that Michigan’s legislative calendar allows bills to carry into the following year, which leaves open the possibility that SB 511 could remain in play in 2026 even if it does not move quickly in 2025.

SB 511’s supporters describe it as a legal clean-up exercise, while critics see it as a step that could trigger broader arguments about gambling expansion.

The debate has turned on how narrow a social betting exception can be, and whether Michigan’s constitution and gaming stakeholders will accept the distinction.