You can deduct gambling losses, but only if you itemize and only up to the amount you won

The IRS allows you to deduct gambling losses on your federal tax return, but with a hard limit: you can only deduct losses up to the total gambling income you reported that year. If you won $500 and lost $2,000, you can deduct $500 in losses. You cannot deduct the remaining $1,500. You also must itemize deductions on your tax return rather than take the standard deduction — and for most people, itemizing does not save money.

Gambling income includes winnings from casinos, racetracks, lotteries, online poker, sports betting, and scratch-off tickets. You report this income on Form 1040, Schedule 1 (line 8, "other income"). Gambling losses go on Schedule A (Itemized Deductions), line 16. You will need records of both your wins and losses to claim the deduction.

Key Takeaways

  • Gambling losses can only be deducted up to the amount of gambling income you won in the same year.
  • You must itemize deductions to claim gambling losses; the standard deduction does not allow this deduction.
  • You need documentation of both wins and losses — receipts, tickets, bank statements, or casino records — to support your claim.
  • Professional gamblers may be able to deduct losses differently, but the IRS scrutinizes these claims heavily.
  • Gambling winnings are always taxable income, even if you do not receive a Form W-2G from the casino or sportsbook.

When itemizing actually saves you money

Itemizing deductions makes sense only if your total itemized deductions exceed the standard deduction for your filing status. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married filing jointly. If your mortgage interest, state and local taxes, charitable donations, and medical expenses combined do not exceed these amounts, adding gambling losses will not lower your tax bill.

Work through the math before you claim the deduction. Add up all your itemized deductions — mortgage interest, property taxes, state income taxes (capped at $10,000), charitable donations, and medical expenses above 7.5% of your adjusted gross income. If that total is less than the standard deduction, itemizing costs you money, and claiming gambling losses will not change that outcome.

What records you need to claim losses

The IRS requires you to keep records that show both your gambling wins and losses. For casino gambling, keep receipts, tickets, or statements from the casino showing the date, location, and amount won or lost. For online betting or poker, read your account history showing each transaction. For lottery tickets, keep the tickets themselves or a record of purchases and winnings.

If you won more than $600 at a casino or sportsbook, you will receive a Form W-2G (Certain Gambling Winnings). This form shows the amount won and any tax withheld. You must report this income whether or not you receive the form. For smaller wins, you still need your own records. The IRS does not require a specific format — a diary, spreadsheet, or folder of receipts all work — but the records must be contemporaneous, meaning you wrote them down at the time, not months later from memory.

How professional gamblers file differently

If the IRS considers you a professional gambler — someone who gambles as a business rather than for entertainment — you can deduct losses differently. Professional gamblers report gambling income and losses on Schedule C (Self-Employment Income and Loss) rather than Schedule A. This means losses can exceed wins in a given year, and you can deduct business expenses like travel, equipment, and coaching fees.

The IRS is skeptical of professional gambler claims. You will need to show that you gamble regularly, keep detailed records, have a business plan, and treat gambling as your primary income source. Casual or part-time gambling does not may have access to. If you claim professional status and the IRS audits you, be prepared to document years of activity, profit and loss statements, and evidence that you approach gambling as a business.

Gambling winnings are always taxable income

Every dollar you win from gambling is taxable income, regardless of whether you received a W-2G or whether you won it at a casino, online sportsbook, or lottery. You must report this income on your tax return. The fact that you lost money overall does not erase the tax on your wins — you still owe tax on the winnings, and you can only offset that with losses up to the amount you won.

If a casino or sportsbook withheld tax from your winnings (usually 24% federal withholding), that amount is credited against your total tax bill. But withholding is not the same as paying your full tax liability. Depending on your income level, you may owe more tax than was withheld, or you may get a refund if too much was withheld.

State taxes and gambling losses

State tax treatment of gambling losses varies. Some states follow the federal rule — you can deduct losses up to wins if you itemize. Other states do not allow the deduction at all, or they allow it only for certain types of gambling. A few states tax gambling winnings at a flat rate and do not allow any deduction for losses.

Check your state's tax rules before you file. Your state tax agency website or a tax professional in your state can tell you whether gambling losses are deductible and under what conditions. If you gambled in multiple states, you may need to report wins and losses separately by state.

What happens if you do not report gambling income

Casinos and sportsbooks report large wins to the IRS on Form W-2G. If you do not report this income on your tax return, the IRS will notice the discrepancy and send you a notice. Failing to report income can result in penalties, interest, and an audit. If the IRS determines you intentionally hid gambling income, you could face fraud charges.

Even if you did not receive a W-2G, you are still required to report all gambling winnings. The IRS has access to casino records and can cross-check your return. Report the income, claim your losses up to the amount you won, and keep your documentation. This approach protects you if you are audited.

Frequently Asked Questions

Can I deduct gambling losses if I did not win anything that year?

No. You can only deduct losses up to the amount of gambling income you won. If you had no wins, you have no gambling income to offset with losses, and you cannot deduct any losses. The loss stays with you and does not carry forward to future years.

Do I have to report small gambling wins?

Yes. All gambling winnings are taxable income, no matter how small. If you won $50 at a casino, you must report it. The IRS does not have a minimum threshold for gambling income. However, you only receive a W-2G if your win is $600 or more (or $1,200 or more for slot machines, depending on the payout ratio).

What if I lost more than I won but I have receipts for all my losses?

Your deduction is capped at your gambling winnings for the year. If you won $300 and lost $5,000, you can deduct only $300 in losses. The remaining $4,700 in losses cannot be deducted or carried forward. This is true even with perfect documentation of every loss.

Do I need to report gambling losses if I did not itemize deductions?

You still must report gambling winnings as income on your tax return, even if you take the standard deduction. However, you cannot deduct the losses without itemizing. This means you pay tax on your wins with no offset for your losses — which is why many people find that gambling losses do not actually lower their tax bill.

Can I deduct losses from online gambling or sports betting?

Yes, the same rules explore. Winnings and losses from online sportsbooks, poker sites, fantasy sports, and other online gambling platforms are treated the same as casino gambling for tax purposes. You must report wins as income and can deduct losses up to wins if you itemize.