All gambling winnings must be reported to the IRS (https://www.irs.gov/taxtopics/tc419) regardless of the amount, but reporting thresholds for casinos to issue a Form W-2G generally start at $600 or more, or $1,200-$1,500 for specific games. Winnings over $5,000 may trigger 24% mandatory federal withholding.
If you score big, you might even receive a Form W-2G reporting your winnings. The tax code requires institutions that offer gambling to issue Forms W-2G if you win: $600 or more on a horse race (if the win pays at least 300 times the wager amount) $1,200 or more at bingo or on a slot machine.
Gambling winnings are fully taxable and you must report the income on your tax return.
If the casino winnings are $25,000 or less, casinos usually limit payout options to cash or a check. If the winnings are larger than $25,000, you can typically choose between a lump sum or a stream of annuity payments. Your payout options may change depending on the casino's location and gambling game.
The IRS Will Track Your Gambling Winnings
If you win big at a casino, sports betting event, or online gambling platform, the IRS is likely aware of it. Gambling establishments issue Form 1099-G gambling (or W-2G tax form) to report your winnings to both you and the IRS.
If you don't include taxable income on your return, it can lead to penalties and interest. The IRS may charge penalties and interest beginning from the date they think you owe the tax. There are times when leaving a 1099 off of your tax return doesn't change it.
For single filers, it's $17,550 and above; for couples, $33,100 if one spouse is under 65; and $34,700 if both spouses are 65 or older. However, the IRS notes people can still file taxes if their income is below those thresholds because they can still take advantage of some tax credits and may receive a refund.
Depositing $2,000 in cash isn't inherently suspicious and is well below the $10,000 reporting threshold for banks, but it can raise flags if it's part of a pattern (structuring), inconsistent with your normal income, or involves other red flags like frequent large cash deposits from others, leading to a potential Suspicious Activity Report (SAR). To avoid issues, have clear records for the cash's source, like invoices or sales receipts, especially if you deal in cash often.
The IRS actively tracks unreported gambling income, and between 2018 and 2020 alone, nearly 150,000 individuals were caught, each of them failing to report over $15,000 in winnings, adding up to $13.2 billion in unreported income.
The 2025 amount that you are allowed to give away is $13.99 million ($13.61 million for 2024) over your lifetime without paying a gift tax. You will typically owe 40% in gift tax for any cash or property transfers over that amount. You will also likely owe 40% estate tax on the value of your remaining estate.
IRS Audits and Penalties
Failing to report gambling winnings can lead to IRS audits, tax penalties, and interest charges. The IRS cross-checks reported income with casino records, and discrepancies may trigger audits.
The IRS has extended the taxable jackpot threshold to $2000 starting January 1, 2026.
There are several ways to reduce tax bills and pay no taxes legally, and one of the easiest ways is to take full advantage of a self-employment tax deduction scheme. In the US, this deduction allows you to deduct a portion of your self-employed income from your taxable profit, provided there are allowable expenses.
Most taxpayers will do anything they can to avoid tax audits. Filling out an accurate tax return is the best way to avoid an audit. Additionally, you should ensure you double-check your math and only claim legitimate tax deductions. E-filing may also be helpful.
Most income is taxable unless it's specifically exempted by law. Income can be money, property, goods or services. Even if you don't receive a form reporting income, you should report it on your tax return. Income is taxable when you receive it, even if you don't cash it or use it right away.
Criminal Charges and Prosecution
In the most serious cases of IRS audit unreported income, the government may pursue criminal charges.
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
Failure to notify penalties
For example, you must tell HMRC about a new source of taxable income or a capital gain if you will need to pay tax on it. If you do not do so by the relevant deadline, you may be charged a penalty, known as a 'failure to notify' penalty.
Currency Transaction Report (CTR), must be filed by casinos to report each transaction in currency involving cash-in and cash-out of more than $10,000 in a gaming day (31 CFR 1021.311).