The Tax Side of Gambling

Mar 31, 2025 | Tax & Accounting

Whether you’re a casual or professional gambler, your winnings are taxable. However, the Treasury Inspector General for Tax Administration reports that gambling income is vastly underreported. Failing to report winnings accurately can lead to back taxes, interest and penalties. Here’s what you need to know to stay compliant and potentially minimize your tax liability.

Reporting of Winnings

Federal law requires reporting all gambling winnings, cash or prizes (such as from casinos, lotteries, raffles, horse racing and online betting) at fair market value. Certain winnings are subject to federal tax withholding, reducing your risk of interest and penalties.

If winnings exceed certain thresholds (for example, $1,200 for slots, $5,000 for poker), the gambling establishment must issue Form W-2G to you and the IRS. Even if you don’t receive a Form W-2G, you’re still required to report gambling income.

Amateur or Professional?

If you’re an amateur, you’ll report your gambling income on Form 1040, Schedule 1. You can claim gambling losses as itemized deductions, but only up to the amount of your gambling winnings.

If you gamble as a profession, the tax rules are a little different because your gambling activities are treated as a business. To qualify as a professional gambler, you must demonstrate that gambling is your primary source of income and that you engage in it with continuity and regularity. Contact the office for more information on the tax rules for professional gamblers.

Staying Compliant

Tax compliance isn’t tricky, but it’s important. Here are some tips:

Log your gambling activities. Include details such as:

  • Dates and locations of when and where you gambled,
  • Types of wagers, and
  • Amounts won and lost.

A log ensures that you accurately report winnings and helps you claim deductible losses when applicable. Having this substantiation can also be beneficial if you’re audited. Remember that a log kept contemporaneously generally holds more weight with the IRS than one constructed later.

Maintain a file of gambling-related receipts, statements and other documentation. Thorough documentation is critical, especially if you’ll be deducting gambling losses or if you’re a gambling professional and will be claiming gambling-related business expenses.

Adjust tax withholding or estimated tax payments if needed. Remember that income taxes must be paid annually via withholding or estimated payments. If the tax you owe on the April 15 filing deadline exceeds what you paid during the tax year through withholding and estimated payments, you might be subject to interest and penalties.

A Risky Bet

The tax rules for gambling income can be confusing. However, failing to report winnings is a risky bet that can result in back taxes, interest and penalties. Contact the office for help.

Recent Posts

Unlock Bigger Deductions on Rental Real Estate

Unlock Bigger Deductions on Rental Real Estate

Many rental property owners are surprised to learn that federal tax law often restricts their ability to deduct losses, treating most rental activities as passive unless specific requirements are met. But if you can qualify for the real estate professional exception,...

Estate Planning for 2026 and Beyond

Estate Planning for 2026 and Beyond

Until recently, much tax uncertainty surrounded estate planning. The Tax Cuts and Jobs Act doubled the federal gift and estate tax exemption to an inflation-adjusted $10 million, but only for 2018 through 2025. Fortunately for those with larger estates, in 2025,...

Taking Control with Self-Directed IRAs

Taking Control with Self-Directed IRAs

You have until April 15, 2026, the tax filing deadline, to make 2025 contributions to an IRA. If you’re seeking more than the traditional mix of stocks, bonds and mutual funds, a self-directed IRA offers greater autonomy and diversification. But it also introduces...