New Rules Could Increase Taxable Income for Gamblers
Recent changes to federal tax law may significantly impact how gambling losses are reported on individual income tax returns. For tax years beginning after December 31, 2025, a new limitation on gambling loss deductions could result in taxpayers owing tax on income they never actually received.
The change affects anyone who participates in sports betting, casino gaming, poker tournaments, horse racing, or other wagering activities. These taxpayers should understand how these new rules may affect their tax liability.
How Gambling Income Was Previously Reported
Under prior tax law, gambling losses were deductible up to the amount of gambling winnings during the same tax year. In other words, taxpayers could not claim a net gambling loss, but they could generally offset all wagering gains with an equal amount of documented losses. Winnings were reported as income, while losses were claimed as an itemized deduction.
For example, if a taxpayer had $20,000 in gambling winnings and $20,000 in documented gambling losses, the losses could fully offset the winnings if the taxpayer itemized, resulting in no taxable gambling income.
What Changes in 2026?
For tax years beginning after December 31, 2025, a taxpayer’s deduction for wagering losses is limited to 90% of total losses incurred. The deduction remains subject to the existing rule that losses cannot exceed gambling winnings.
This seemingly small adjustment may create a significant tax burden for some taxpayers because a portion of their losses will no longer be deductible.
Consider the following example:
- Gambling winnings: $50,000
- Gambling losses: $45,000
- Net economic gain: $5,000
Under the new rules, only 90% of the losses, or $40,500, would be deductible. This results in taxable gambling income of $9,500 rather than the taxpayer’s actual economic gain of $5,000.
In this scenario, the taxpayer pays tax on income that exceeds their true profit from gambling activity. The disallowed portion of the losses effectively increases taxable income and may substantially increase the overall tax rate on gambling profits.
The “Phantom Income” Problem
One of the most concerning aspects of the new law is the potential creation of what tax professionals often refer to as “phantom income.”
Because only 90% of gambling losses are deductible, some taxpayers could owe income tax even when their gambling activity breaks even economically. A taxpayer whose losses equal their winnings may still report taxable gambling income solely because a portion of those losses is no longer deductible.
This result has generated concern among taxpayers and tax professionals, particularly for individuals who engage in high-volume gambling activity throughout the year.
Recordkeeping Will Be More Important Than Ever
Accurate documentation has always been critical for taxpayers claiming gambling losses, but these new rules make proper recordkeeping even more important. Taxpayers should maintain contemporaneous records that clearly document both winnings and losses.
The IRS may challenge records that appear to have been recreated after the fact, especially when diaries contain numerous rounded amounts. Taxpayers should avoid estimates and instead record gambling activity as it occurs. Mobile applications and digital tracking tools may help maintain accurate records throughout the year.
Additional Planning Opportunities
Taxpayers who regularly participate in wagering activities may want to review their estimated tax payments. The new limitation could increase taxable income beyond what is expected based on actual gambling profits, potentially leading to underpayment penalties if quarterly estimates are not adjusted.
Another planning technique that may be beneficial is the “session method” of reporting gambling activity. This approach generally allows gamblers to net wins and losses within a single gaming session rather than reporting every wager independently. Proper application of the session method may help reduce the amount treated as gross gambling winnings before the 90% limitation is applied.
Final Thoughts
The new gambling loss limitation represents a significant shift in the taxation of wagering activity. While the change may appear minor on the surface, it has the potential to increase taxable income and create unexpected tax liabilities for many gamblers, including those who have little or no actual economic profit.
If you regularly participate in sports betting, casino gaming, poker, or other gambling activities, now is a good time to review your recordkeeping practices and discuss planning opportunities with your tax advisor. Understanding these changes before filing season can help you avoid surprises and ensure you remain compliant with the new reporting requirements.
If you have questions about gambling losses, estimated tax payments, or the potential impact of these changes on your return, Scheffel Boyle is here to help. Our experienced tax advisors can provide guidance tailored to your specific situation and help you stay ahead of changing tax laws.











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