The recent legislative changes introduced through President Trump’s One Big Beautiful Bill (OBBB) Act are poised to have a profound impact on the landscape of professional sports betting within the United States. Specifically, a relatively small but significant provision within this legislation alters the tax treatment for professional gamblers in a way that contrasts markedly with the more favourable conditions previously enjoyed by traders in stocks and options. Whereas such traders could fully deduct 100% of their losses against their income, under the new law, professional gamblers will find that only 90% of their betting losses are tax deductible.
To many, this 10% adjustment might appear inconsequential at first glance. However, its implications are far-reaching, promising to substantially alter the dynamics of professional betting in the U.S. as individuals engaged in this activity look for methods to mitigate their increased tax liabilities.
In an unexpected turn of events, Robinhood Markets, known for its trading platform, has surged to new record heights amidst these changes, indicating a potential shift in where individuals look to place their bets.
### The Unseen Challenges of Professional Gambling
The glamorous image often associated with professional gambling does not fully encapsulate the reality of the profession. Far removed from being doused in cash alongside celebrities in exclusive stadium boxes, professional gamblers often find themselves immersed in data and strategies, analyzing their numerous bets in less glamorous settings.
These individuals operate much like day traders, meticulously searching for minor advantages and striving to maintain a win rate slightly above the threshold of losing. Given the built-in advantage, or vigorish (vig), that sportsbooks command, a professional gambler must secure a win rate of 52.4% or higher to surpass the bookmaker’s cut and achieve profitability.
Consider the scenario of a new professional gambler assessing his annual performance with a starting capital of $5 million, spread over 1,000 bets each valued at $5,000. Following this activity, if 470 bets result in losses totaling $2.35 million, with the remaining 530 bets yielding earnings of $2.65 million, the gambler would traditionally conclude the year $300,000 ahead, perfectly offsetting losses with winnings. However, the introduction of the OBBB Act complicates this picture. The Act restricts the deductible amount of gambling losses to 90% of the total, which in the given scenario means only $2,115,000 of the $2,350,000 lost can be deducted. Consequently, the gambler’s taxable income inflates to $485,000, assuming a tax obligation of $169,750 at a 35% federal tax rate by 2025—a substantial increase in tax liability compared to previous regulations.
### The Rise of Robinhood’s Event Contracts
As professional sports gamblers navigate this new tax landscape, alternative avenues for betting have emerged, notably, event contracts offered through platforms like Robinhood. These contracts, which cover a wide range of outcomes from sports to economic indicators, are regulated under the Commodity Futures Trading Commission (CFTC). This classification affords them tax treatments akin to ordinary income, where total losses can be fully deducted against gains, an appealing prospect for gamblers facing the new tax constraints in traditional betting.
Robinhood, through its partnership with Kalshi, offers such event contracts, capitalizing on the growing popularity of prediction markets. These markets allow participants to speculate on various events, from sports games to political outcomes, and even weather patterns. Unlike traditional sports betting, where one’s opponent is the house, event contract trading pits participants against each other, introducing different dynamics and considerations, such as counterparty and liquidity risks, that are generally absent in casino gambling.
Despite these challenges, Robinhood’s foray into event contracts has seen significant growth, with over one billion contracts traded within six months of availability. This volume has contributed to a remarkable 50% year-over-year revenue increase for Robinhood, with analysts from firms like Piper Sandler, Morgan Stanley, and JMP Securities adjusting their forecasts upwards in anticipation of sustained growth. Consequently, Robinhood’s stock has flourished, providing compelling reasons for investment and closely watched by analysts and investors alike as the company approaches its Q2 2025 earnings release on July 30.
### Conclusion
The amendment to gambling tax laws under the OBBB Act presents a significant shift in the professional gambling landscape, encouraging gamblers to seek alternative platforms like Robinhood for event contract betting. This shift not only highlights the evolving nature of betting in the United States but also underscores the economic and regulatory factors influencing these changes. As professional gamblers adapt to these new conditions, the emergence of prediction markets and event contracts stands as a testament to the innovative strategies employed by individuals and companies within the ever-adapting world of sports betting and finance.
