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State Tax Withholding on Casino Winnings: Why Canadians May Owe More Than Just the IRS 30%

Most Canadians who win big in Las Vegas or Atlantic City already know about the 30% federal withholding — it's printed right there on the 1042-S slip the casino cage hands over. What catches people off guard is a second line item, or a second slip entirely, from the state itself. State tax withholding on casino winnings is a real and often overlooked cost, and unlike the federal chunk, there's no treaty and often no realistic path to getting it back.

The Two Layers of Tax on U.S. Casino Winnings: Federal and State

When a Canadian wins a taxable jackpot in the U.S. — typically $1,200 or more on a slot machine, or amounts that trigger reporting on other games — the casino withholds federal tax at a flat 30% rate for non-resident aliens under IRS rules. That's the number most gambling guides focus on, and it's the number U.S. Tax Recovery helps recover through the 1042-S and ITIN process.

But federal withholding is only one layer. States that impose their own income tax on gambling winnings can also require the casino to withhold at the point of payout — a completely separate calculation, reported on a separate line (sometimes a separate form), and governed by that state's own tax code rather than anything in the Internal Revenue Code. A Canadian who hits a $10,000 slot jackpot in a state with, say, 6% withholding could see the payout reduced by $3,600 — $3,000 federal, $600 state — before a single dollar hits their pocket.

Which States Withhold Tax on Gambling Winnings (and Which Don't)

Not every state taxes gambling winnings, and that alone makes the picture inconsistent for cross-border visitors. Nevada, for example, has no state income tax at all, so a jackpot won in Las Vegas is subject only to the federal 30%. New Jersey, on the other hand, does tax gambling winnings and casinos there withhold accordingly.

Broadly, states fall into three buckets:

• No state income tax, so no gambling withholding — Nevada, Florida (relevant for some cardrooms/pari-mutuel), and a handful of others.
• State income tax exists, and gambling winnings are withheld at source — New Jersey, New York, Connecticut, and others where casinos are required to withhold for both resident and non-resident winners above certain thresholds.
• State income tax exists, but withholding on nonresident gambling winnings varies by game type or threshold — some states withhold only above certain jackpot amounts, or treat slots differently than table games or poker tournaments.

Because the rules are set state-by-state and change periodically, the only reliable way to know what applies to a specific win is to check that state's department of revenue guidance for the tax year in question, or read the withholding statement the casino actually issues at the cage.

How State Withholding Rates Compare: Nevada vs. New Jersey vs. Others

The dollar difference between winning in a no-tax state and a taxed state can be substantial. Here's a simplified comparison based on how these jurisdictions generally approach gambling winnings:

This table is illustrative of the pattern, not a substitute for checking the exact current rate in the state where you won — rates and thresholds are set by state legislatures and can change from year to year. The practical takeaway for a Canadian planning a trip: where you gamble matters almost as much as how much you win.

Why the U.S.-Canada Tax Treaty Doesn't Cover State Tax

This is the part that trips people up. The Canada-U.S. Tax Treaty is a federal-level agreement between the two national governments. It's what allows Canadians to offset U.S. gambling winnings with documented losses under Article XXII(3), and it's the mechanism behind most federal 1042-S refund claims. But treaties negotiated by the U.S. federal government don't bind individual states — states are separate taxing authorities with their own rules, and they're under no obligation to honor a treaty Washington signed with Ottawa.

Practically, that means the loss-offset strategy that can bring back most or all of your federal withholding usually has no equivalent at the state level. Some states allow nonresidents to file a state tax return and claim deductions or credits; many don't offer anything comparable for gambling losses, especially for non-residents with no other connection to that state. If you want the deeper mechanics of how the treaty works federally, our piece on Article XXII(3) and gambling losses walks through it in detail — but it's strictly a federal story.

Reading Your W-2G and 1042-S: Spotting State Withholding Amounts

Casinos issue different paperwork depending on whether you're a U.S. person or a non-resident alien, and the forms don't always make state withholding obvious at a glance.

• W-2G is the standard form for gambling winnings and is typically issued regardless of residency status when a payout crosses reporting thresholds. It has distinct boxes for federal income tax withheld and, separately, state income tax withheld along with the state's ID.
• 1042-S is the form specific to non-resident aliens and is the one relevant for most federal withholding recovery claims. It documents the federal 30% withholding, but it is not designed to capture state tax — so state withholding, if any, often shows up on an accompanying W-2G or a separate state withholding statement rather than on the 1042-S itself.

If you've ever compared these two documents side by side, our guide on W-2G vs. 1042-S breaks down exactly which one you'll get and why. The short version for this topic: don't assume your 1042-S tells the whole story. Check whether the casino also handed you a W-2G with a state withholding box filled in — that's the money that isn't covered by the federal recovery process.

Can Canadians Recover State Withholding? What's Realistic and What Isn't

This is where expectations need to be set honestly. Federal withholding recovery for Canadians is well-established: file a 1040-NR, apply the treaty's loss-offset provision, get an ITIN if you don't already have one, and claim back some or all of the 30% depending on documented losses. Thousands of Canadians do this every year.

State-level recovery is a different animal, and it's realistic to expect one of three outcomes depending on the state:

1. No state return required or possible for non-residents — some states don't provide a mechanism for non-resident gamblers to file and claim anything back, meaning the withholding is effectively final.
2. A state non-resident return exists, but the deductions available are narrow — worth pursuing only if the withheld amount is large enough to justify the filing effort and any professional fees.
3. You genuinely overpaid relative to what the state formula requires, and a return corrects the numbers — this happens, but it's the exception rather than the rule for casual visitors.

Be skeptical of any promise of guaranteed state tax recovery — it depends entirely on the specific state's rules for nonresident filers, and those rules aren't uniform. This is one area where it pays to actually check the numbers before assuming there's money to reclaim.

Combining Federal 1042-S Refunds With State Filing Requirements

For most Canadian winners, the practical strategy is to treat these as two separate tracks rather than one combined filing. The federal track — 1042-S review, ITIN application if needed, and a 1040-NR — is the one with a clear, treaty-backed path to a refund. If you're not sure whether you need an ITIN at all, our explainer on ITINs for Canadian casino winners covers when it's required and when it isn't.

The state track, when it's worth pursuing, usually means a separate non-resident state income tax return filed with that state's revenue department, on its own schedule and with its own documentation standards. It's not unusual for a Canadian to successfully recover most of their federal withholding while the state portion simply stays withheld because the juice isn't worth the squeeze on a smaller amount. Before assuming you need to chase both, it's worth adding up exactly how much was withheld at each level — if the state portion is a few hundred dollars, the cost of a nonresident state filing may not make sense.

A State-by-State Snapshot: Where Canadian Gamblers Get Hit Hardest

For Canadians who split trips between destinations, the state matters as much as the game:

• Nevada (Las Vegas) — no state income tax, so the 30% federal rate is the whole story. This is one reason Vegas trips are simpler from a tax-recovery standpoint than East Coast trips. See our Las Vegas-specific guide for details.
• New Jersey (Atlantic City) — state withholding applies on top of the federal rate, and Canadians visiting the Boardwalk casinos should expect a state line item most Vegas winners never see. Our Atlantic City guide has more.
• Connecticut (Foxwoods, Mohegan Sun) — tribal casinos in a state with income tax; state withholding rules apply to winnings there even though the properties themselves are on tribal land.
• New York and Pennsylvania — both impose state income tax and both withhold on qualifying gambling winnings, adding a second layer to any large payout in Niagara Falls-area or Philadelphia-area casinos.

The pattern holds broadly across the country: no state income tax means no state gambling withholding, and vice versa. Knowing the state's tax posture before you sit down at a machine is a small piece of trip planning that can meaningfully change your net payout.

Steps to Take Before You Leave the Casino Cage

1. Ask for an itemized breakdown of federal versus state withholding before you leave the payout window — don't wait until you're back in Canada trying to reconstruct the numbers.
2. Keep both the W-2G and 1042-S, if you receive both. Losing either one makes the recovery process slower and, if permanently lost, may require requesting a duplicate from the casino.
3. Note the state you won in and roughly what its income tax situation looks like — this determines whether a state filing is even on the table.
4. Track your losses contemporaneously, not from memory months later — a win-loss statement from the casino is useful supporting documentation for the federal claim.
5. Start the federal ITIN and 1042-S recovery process as soon as practical — this is the layer with the clearest, treaty-backed path back to your money, and it's where a casino tax refund specialist can actually move the needle, working on a pay-only-when-you're-refunded basis rather than charging upfront.

State withholding is frustrating precisely because it feels like an extension of the federal 30% but isn't governed by the same rules or the same treaty relief. Understanding the split — and where a filing is actually worth pursuing — is the difference between chasing every dollar and knowing which dollars are realistically recoverable.

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