A win at the casino or sportsbook feels like the end of the story. For the IRS, it is the beginning of a paper trail: gambling winnings are taxable income, the rules for offsetting losses are stricter than most players expect, and some payouts trigger automatic withholding before you ever see the money. Here is what US players should understand heading into tax season, and the record-keeping habits that protect you if questions come later, keeping in mind this is general information, not tax advice.
The core rule: all winnings are taxable income
Federal tax law treats gambling winnings as fully taxable income, and the list of what counts is broader than people assume:
- Casino play, slots, table games, poker tournaments.
- Sports betting, every winning ticket, whether at a retail book or an app.
- Lotteries and raffles, including the office-pool variety.
- Racing and other wagering, horse, dog, and jai alai.
- Prizes, cash and the fair market value of noncash prizes, like a car or a trip.
You report winnings on your federal return, Form 1040, through Schedule 1, regardless of the amount, and regardless of whether you receive a Form W-2G. The IRS is explicit about this: winnings that are not reported on a form still must be reported on your return. There is no minimum below which gambling income stops being income.
One misconception to kill early: “I gave it all back, so there is nothing to report.” Winnings and losses are tracked separately. You report the winnings first; deductions for losses, if you qualify, are a separate line, and the rules just got tighter. If large winnings arrive with no withholding, you may need to make estimated tax payments during the year; IRS Publication 505 covers that.
The 2026 change: losses capped at 90%
If you itemize deductions, you can deduct gambling losses, but with two limits stacked on top of each other.
The long-standing rule: losses are deductible only up to the amount of gambling winnings you reported, as an “Other Itemized Deduction” on Schedule A. Losses can never offset your salary, your business income, or anything else, they only cancel out gambling winnings, and only if you itemize.
The new rule, starting with the 2026 tax year: the deduction is capped at 90% of your losses. The change came in the 2025 budget law (the One Big Beautiful Bill Act, section 70114) and applies to tax years beginning after December 31, 2025, the IRS restates it in Publication 505 for 2026.
A worked example makes the effect clear. Say you win $10,000 across the year and lose $10,000. As an itemizer, you deduct 90% of your losses, $9,000, against $10,000 of winnings. Result: $1,000 of taxable gambling income in a year you broke even. Commentators call the gap “phantom income,” and it is why the change has drawn bipartisan repeal proposals, but as of publication, the 90% cap is the law.
Two points keep this in proportion. First, the cap only matters if you itemize: if you take the standard deduction, you cannot deduct gambling losses at all, and that was true long before 2026, most taxpayers are in this group. Second, losses still cannot reduce tax on your other income, at any percentage. When you file, confirm the rules for your tax year, because this area has been changing.
Form W-2G: what gets reported, and the 2026 thresholds
A payer, a casino, a sportsbook, a lottery, issues Form W-2G to report certain gambling winnings to you and to the IRS. It is an information form, not a bill, but it is a useful signal: if a W-2G exists, the IRS already knows about the win.
The reporting thresholds changed for 2026, and the changes mostly favor players:
- The general threshold rose to $2,000 (from $600), and the old game-specific levels, $1,200 for slot machines and bingo, $1,500 for keno, moved up to the same $2,000 figure. It is indexed for inflation in later years.
- Poker tournament winnings over $5,000 are still reported.
- Sports betting and other wagering: a win is reportable at $2,000 or more only if it is also at least 300 times the amount wagered. In practice, most ordinary winning tickets do not generate a W-2G, a $20 bet that returns $40 will not, while a small long-shot ticket that pays hundreds of times the stake can.
The form thresholds govern what operators must report, not what you must report. Under-threshold wins, cash wins, and wins at operators that never issue a form all still belong on your return. The W-2G is the operator’s obligation; reporting your income is yours.
24% withholding: when it applies
Certain larger winnings face automatic federal withholding at 24% before the money reaches you. The trigger has two parts, the winnings minus the wager must exceed $5,000, and the payout must be at least 300 times the wager, and it applies to lotteries, sweepstakes, wagering pools, parimutuel bets on horse, dog, and jai alai racing, and sports and other wagering transactions.
Two clarifications that matter:
- Slot machines, bingo, and keno are not subject to regular gambling withholding at any amount. That surprises people who have seen 24% taken from a big lottery win but not from a slot jackpot. (If you do not provide a taxpayer identification number, backup withholding at the same 24% rate can apply to those games.)
- Withholding is figured on the whole proceeds, winnings minus the wager, not just the portion above $5,000. A payout that just clears the trigger can still see a meaningful chunk withheld.
Most important: 24% is a prepayment, not your final tax. It is reconciled when you file. If your marginal rate is lower than 24%, some of it comes back as a refund; if it is higher, you owe the difference. Noncash prizes count at fair market value, which is why winning a car can create a tax bill even when no cash changes hands. Some states also withhold on large payouts, under their own rules.
Professional vs. casual: two different tax lives
Most players are casual players in the eyes of the tax code, but the distinction matters for what you can deduct.
- Casual players report winnings as income and can deduct losses only as an itemized deduction, capped at winnings and at 90% of losses for 2026. No business expenses, no travel deductions, no home-office theories.
- Professionals, people in the trade or business of gambling, report income and expenses on Schedule C, and self-employment tax can apply. But recent law tightened their side too: business expenses connected to wagering are treated as part of “losses from wagering,” which means they are subject to the same limits, deductible only to the extent of winnings and under the 90% cap.
Where the line falls is fact-intensive, courts weigh time devoted, expertise, intent, and consistency of play. If you think you might qualify as a professional, or the IRS might argue that you do, get professional advice before you file, because the label changes your whole return.
Records: your only defense
Here is the asymmetry to understand: your winnings are reported to the IRS by operators on forms. Your losses are not reported by anyone. If you claim a loss deduction, the evidence has to come from you.
The IRS requirement is concrete: to deduct losses you must keep “an accurate diary or similar record” of your gambling activity and be able to produce receipts, tickets, statements, or other records that show both winnings and losses. In practice, good records look like this:
- A log per session: date, type of activity, location or platform, and the amount won or lost. For sports betting, the ticket and the result; for slots, the session total rather than every spin.
- Documents: W-2G forms, bet slips, casino statements, payout confirmations, bank and wallet records. Your withdrawal history at an online operator is a useful starting point, though it will not capture every session, build your own log alongside it.
- A year-end win/loss statement from a casino can support your records, but treat your own contemporaneous log as the backbone.
Start the log now, not in April. Records reconstructed months later are worth far less than records kept in the moment, and the 90% cap makes a loss deduction less forgiving than it used to be.
State taxes, other countries, and nonresidents
A few boundaries worth knowing:
- States: most states with an income tax treat gambling winnings as taxable income, and some apply their own withholding to large payouts. States without an income tax do not take a cut. Check your own state’s treatment.
- Other countries: approaches differ sharply. Some countries, the UK is the best-known example, do not tax recreational gambling winnings at all; others tax them like ordinary income; many treat professional players differently from casual ones. If you are outside the US, or have winnings from abroad, local rules apply, and a local professional is the right guide.
- Nonresidents: US-source gambling winnings have their own regime: nonresident aliens generally file Form 1040-NR, and cannot deduct gambling losses except in limited cases, such as residents of Canada. That is specialist territory.
And the standing disclaimer, because it matters here more than in most guides: this is general information, not tax advice. Your bracket, your itemizing decision, your state, and the rest of your return all change the answer. When the amounts are real, a tax professional earns their fee.
The bottom line
Winnings are taxable income: report all of them, forms or no forms. Losses are deductible only if you itemize, only up to your winnings, and for 2026 only at 90%. W-2G reporting starts at $2,000 for most games; 24% withholding hits certain large wins, but never slot machines, bingo, or keno; and your records are the only thing standing between a legitimate loss deduction and a disallowed one. None of this is tax advice, if your numbers are significant, talk to a professional. And one habit worth building regardless of the tax rules: keep your play within a budget you can afford, and know that our responsible gaming guide covers the tools licensed operators must offer.
