The Supreme Court’s 2018 decision to repeal PASPA cleared the way for legal sports betting, and our LegalBettingOnline guide to US states with local sportsbooks is evidence to how widespread they have grown since that time.
As a result, governments have collected new tax revenue, and fans have embraced the ease of betting from home. However, a new study argues that this growth has come with serious financial costs.
In a working paper called The Financial Consequences of Legalized Sports Gambling, Brett Hollenbeck of UCLA Anderson and his co-authors from USC examined how legal sports betting affects household finances. Their main finding is clear: mobile sports betting appears to hurt consumer financial health far more than in-person betting.
The Mobile Trap
The researchers used anonymized data from the University of California Consumer Credit Panel. They tracked millions of US adults and compared financial outcomes across states. In particular, they looked at the difference between retail betting at physical locations and online betting through websites and mobile sportsbook apps.
Their results showed a sharp split. In-person betting had little effect on overall financial health. By contrast, mobile betting showed a much stronger link to financial trouble, especially for vulnerable groups.
In states with legal mobile betting, the study found:
- Bankruptcies: personal bankruptcy risk rose by 25% to 30% within three to four years after legalization
- Credit scores: average scores fell by about 0.3% overall, and the drop was much steeper in mobile betting states
- Debt collections: the amount of debt sent to collections rose by 8%
- Auto loan delinquencies: missed car payments increased by 9%
These findings suggest that easy phone-based betting may push some consumers into deeper financial strain.
The Most At-Risk Demographic: Young Males
The study also found that the damage did not fall evenly across the population. Instead, young men, especially those in lower-income areas, showed the strongest negative effects.
“The ease at which consumers can now bet online is negatively harming consumer financial health”
For men ages 18 to 49, the financial decline was more severe. The authors note that this group uses gambling apps the most. In lower-income counties, young men saw credit limits drop by nearly 4%. They also took on more high-interest debt consolidation loans.
The authors make the mechanism clear. They argue that constant app access encourages fast and impulsive betting. In other words, mobile betting removes friction. Because of that, users can place wagers at any time, from almost anywhere. Traditional casinos do not create that same always-on environment.
As the paper puts it, “The ease at which consumers can now bet online is negatively harming consumer financial health.”
A Harmful Credit Cycle
The study also points to a wider financial chain reaction. When losses pile up, credit scores often fall. Then banks and lenders respond by cutting access to credit.
That response can make things even worse. First, a bettor loses money. Next, their credit weakens. Then a lender lowers a credit limit or tightens borrowing terms. After that, the consumer may turn to more expensive forms of debt. Eventually, some may end up in bankruptcy.
So, the problem is not only the betting losses themselves. It is also the way those losses can trigger a broader financial spiral.

Policy Implications
These findings create a difficult policy question for states. On one hand, legal sports betting brings in tax money and economic activity. On the other hand, the study suggests that mobile betting may increase financial distress and create longer-term social costs.
The authors say the state-by-state rollout of sports betting has created a useful natural experiment. Because of that, researchers can now measure the financial effects more clearly. In their view, the results should serve as a warning. States that are considering expansion, or reviewing gambling ads and app design, may want to take a closer look.
