New Legislation Caps Gambling Loss Deductions at 90 Percent Beginning in 2026

The One Big Beautiful Bill Act signed into law on July 4 2025 introduces a key change to how gambling losses factor into federal tax calculations and this shift takes hold on January 1 2026; under the new rules taxpayers may deduct only 90 percent of their gambling losses and that amount remains capped at total winnings reported for the year whereas prior law permitted a full 100 percent deduction up to the level of winnings.

Observers tracking tax policy note that the adjustment applies across different filing paths depending on whether the individual qualifies as a recreational gambler or a professional one; recreational participants continue to report the deduction as an itemized entry on Schedule A while professionals list both losses and related expenses directly on Schedule C which can alter overall business income calculations.

Previous Rules and the Shift in 2026

Before the legislation took effect gamblers could offset winnings dollar for dollar with documented losses and any excess losses simply went unused for that tax year; the One Big Beautiful Bill Act modifies this framework by trimming the allowable portion to 90 percent while preserving the winnings cap so that even when losses meet or exceed winnings some portion of net activity may still produce taxable income on the return.

Data from tax preparation resources shows this structure means a recreational gambler who reports $10,000 in winnings and $10,000 in losses can now deduct only $9,000 which leaves $1,000 potentially subject to tax whereas the same scenario under earlier guidelines produced zero taxable gambling income; professionals face a parallel calculation on Schedule C yet they may also incorporate additional business expenses which adds another layer to the final figure.

Differences Between Recreational and Professional Gamblers

Recreational gamblers who do not meet the material participation and profit motive tests required for professional status must continue using the itemized deduction route on Schedule A and they remain subject to the overall limit on miscellaneous itemized deductions that applies in certain years; professionals who establish gambling as a trade or business report on Schedule C where the 90 percent loss limit combines with ordinary and necessary expense allowances creating a distinct computational path.

Those who have studied the transition point out that maintaining accurate records becomes even more critical because the reduced percentage applies only to the loss portion while winnings stay fully reportable; without contemporaneous logs of bets placed and amounts lost or won the deduction claim faces greater scrutiny during any review process.

Potential Outcomes When Losses Equal or Exceed Winnings

The legislation creates situations in which taxable gambling income appears on the return even though actual net results for the year show no gain or a net loss; a professional who records $50,000 in winnings alongside $55,000 in losses can deduct 90 percent of the losses or $49,500 yet still report $500 in taxable income because the cap ties directly to winnings and the percentage reduction leaves a remainder.

Similar patterns emerge for recreational filers who itemize and the change does not alter state-level tax treatments which continue to follow their own statutes; taxpayers therefore consult both federal guidelines and any applicable state rules when preparing returns for 2026 and later years.

Context in Mid-2026 and Record-Keeping Emphasis

By August 2026 tax professionals and software providers have incorporated the updated percentages into their systems and guidance materials so that returns filed for the 2026 tax year reflect the 90 percent limitation from the outset; the Internal Revenue Bulletin 2026-19 outlines the computational examples and clarifies that the cap continues to function as an annual limit rather than a per-session one.

Accurate substantiation of every wager remains the foundation for claiming the deduction and both recreational and professional gamblers benefit from digital tracking tools or detailed journals that capture date, location, amount wagered and outcome; without such documentation the reduced percentage becomes harder to support if questions arise during processing.

Conclusion

The One Big Beautiful Bill Act therefore establishes a narrower deduction framework for gambling losses beginning in 2026 and the distinction between Schedule A and Schedule C treatment preserves the prior separation between recreational and professional activity while introducing the 90 percent reduction across both categories; individuals who engage in gambling track their activity consistently to align reported figures with the new statutory requirements.