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ITIN for International Poker Players: What You Need to Know Before (and After) the WSOP

If you've ever cashed a tournament at the WSOP or another U.S. poker series only to watch 30% of your winnings disappear before you even leave the cage, you're not alone — and you're not out of options. Getting an ITIN for international poker players competing in U.S. tournaments like the WSOP is the key step that unlocks a refund of that withheld tax, and this guide walks through exactly how the process works, from the moment you're paid out to the day the IRS sends your money back.

Why Poker Winnings at U.S. Tournaments Get Taxed at 30%

Under U.S. tax law, nonresident aliens are subject to a flat 30% withholding tax on U.S.-source gambling income, and poker tournament winnings fall squarely into that category. It doesn't matter whether you're a recreational player who min-cashed a $600 buy-in event or a pro who took down a $1 million first-place prize — if you're not a U.S. citizen or resident and you win money at a U.S. tournament, the casino or cardroom is legally required to withhold 30% at the source under Internal Revenue Code Section 1441.

This is different from how the IRS treats slot jackpots or table games for U.S. residents, where withholding kicks in only above certain thresholds (like $1,200 on a slot win). For nonresidents, there's no threshold — the flat rate applies to reportable gambling winnings regardless of size, which is why a Canadian, German, or Brazilian player who ships a WSOP event can watch six figures get withheld in a single afternoon. For a deeper breakdown of how these rules apply specifically to poker, see our guide on poker tournament winnings tax for Canadians.

What Is an ITIN and Why Poker Players Need One

An Individual Taxpayer Identification Number (ITIN) is a nine-digit number issued by the IRS to people who need to file a U.S. tax return but aren't eligible for a Social Security Number. It's the IRS's own program — not something a private company can grant — and it exists specifically for situations like this: a nonresident with U.S. tax withheld who needs to file a return to claim it back.

You need an ITIN because you can't file a U.S. nonresident tax return (Form 1040-NR) without a taxpayer identification number, and without filing that return, there's no legal mechanism to get your 30% back. Think of the ITIN as the key that lets the IRS match your identity to the withholding reported under your name on your 1042-S form. Without it, your refund claim simply can't be processed.

How the WSOP and Other U.S. Casinos Report Your Winnings (Form 1042-S)

Every time a casino or cardroom withholds tax from a nonresident's gambling winnings, it's required to issue Form 1042-S — "Foreign Person's U.S. Source Income Subject to Withholding." This form shows the gross amount you won, the tax withheld, and the withholding rate applied. The WSOP (run through Caesars/Horseshoe properties) issues these directly after a cash, and you should receive a copy either on-site or by mail early the following year.

Keep every 1042-S you receive, even if you only cashed for a modest amount. Multiple cashes in the same year — say, a $3,000 min-cash in a bracelet event and a $15,000 deep run in the Main Event — will generate separate 1042-S forms, and you'll need all of them to file an accurate return. Losing track of even one can cause a mismatch between what the IRS has on file and what you claim, which is one of the fastest ways to trigger a delay.

Do You Need an ITIN If You Already Won and Were Taxed?

Yes — and this is the scenario most players find themselves in. If you already cashed a tournament, had 30% withheld, and are now holding a 1042-S, you still need an ITIN before you can file the return that claims your refund. There's no separate "after the fact" process; the ITIN application (Form W-7) and your tax return are typically submitted together as one package.

The good news is there's no expiration on when you can act. The IRS generally allows refund claims going back three years from the filing deadline, so a WSOP cash from two summers ago is still very much recoverable — you just haven't gotten around to it yet.

Step-by-Step: Getting an ITIN as a Non-U.S. Poker Player

The trickiest part for most players isn't the paperwork — it's the identity verification. The IRS wants either your original passport or a copy certified in a very specific way, and mailing your actual passport to Austin for months while you're trying to travel to your next tournament stop is a real logistical headache. This is why most international players work through a Certifying Acceptance Agent (CAA), who can verify your passport in person or remotely and send certified copies to the IRS on your behalf, so you keep your passport the whole time.

Documents You'll Need: Passport, 1042-S, Tournament Records

At minimum, you'll need:

• A valid passport — the single most widely accepted standalone identity document for ITIN purposes.
• Every 1042-S form issued to you for the tax year you're claiming, showing gross winnings and tax withheld.
• Tournament records — buy-in receipts, payout slips, or statements from the cardroom showing your entries and results, especially if you want to net losses against wins (more on this below).
• A completed Form W-7, with the correct reason code checked (for gambling refund claims, this is typically the box indicating you need the ITIN to claim a tax treaty benefit or file a return to claim a refund).

If any of your winnings came from slot machines or table games during the same trip, you may also have a win-loss statement from the casino, which can support additional deductions.

How Canadian Players Can Use the Tax Treaty to Recover Withheld Tax

Canadian residents get a meaningful advantage under the U.S.-Canada tax treaty: unlike most nonresidents, Canadians are permitted to deduct U.S. gambling losses against U.S. gambling winnings when calculating what they actually owe. That means if you won $20,000 across a few tournaments but also had $8,000 in documented buy-in losses over the same year, your taxable net could drop to $12,000 — and the refund on the difference between what was withheld (30% of the full $20,000) and what's actually owed can be substantial.

This treaty benefit is specific to Canada and doesn't apply the same way to every nationality. UK residents, for example, benefit from a different — arguably even better — provision: the U.S.-UK treaty exempts gambling winnings from U.S. tax entirely in most cases, meaning UK players can often recover the full 30% rather than a net amount. If you're playing under a different passport, it's worth understanding exactly which treaty applies to you before you assume the Canadian rules are universal — our comparison of the UK-US treaty versus Canada's breaks down the difference.

Common Mistakes That Delay ITIN Approval or Refunds

• Sending an incomplete or uncertified identity document. A photocopy of a passport that isn't certified by an authorized agent will get rejected outright.
• Mismatched names. If your 1042-S has a slightly different spelling or format of your name than your passport, expect a request for clarification.
• Missing 1042-S forms. If you cashed multiple events, the IRS may flag a return that only accounts for one.
• Filing too late in the season. ITIN processing slows dramatically between February and April as the IRS handles peak volume — submitting in the off-season (summer or fall) often moves faster.
• Assuming an old ITIN is still valid. ITINs expire if unused for three consecutive tax years, or on a rolling schedule the IRS has phased out over time. If you got one years ago for a prior casino win, it may need renewing before it can be used again.

Timeline: How Long ITIN Processing and Refunds Typically Take

Realistically, budget 9 to 11 weeks for ITIN processing and return handling when filing from outside the U.S., and longer — sometimes 4-6 months — if you file during peak season (January through April) or if your application needs a follow-up. Refunds are issued only after the ITIN is assigned and the return itself is fully processed, so the two steps run sequentially, not in parallel. Filing in the months right after your tournament run, rather than waiting until the following spring, generally gets you paid faster.

Filing Your U.S. Tax Return (1040-NR) After Getting Your ITIN

Once your ITIN is assigned, the actual tax return is Form 1040-NR, the nonresident individual return. This is where your gambling income gets reported, any applicable treaty benefits or loss deductions are applied, and the withholding shown on your 1042-S(s) is credited against your calculated liability — with the difference refunded to you. Our guide on filing Form 1040-NR covers this step in more detail if you want to see exactly what the form asks for.

What Happens If You Play Multiple U.S. Tournaments in a Year

If your year includes a WSOP summer series cash plus, say, a fall stop at a regional series in California or a cash game session in Atlantic City, all of that gets consolidated onto a single 1040-NR for the year. You don't file separately for each event — you combine every 1042-S you received into one return, and if you're Canadian, you can net your total documented losses against your total winnings across all of it. This is actually good news for high-volume tournament grinders: a rough series with a couple of min-cashes and one big score often nets out to a lower effective tax bill than the flat 30% withheld at each individual cash suggests.

How U.S. Tax Recovery Helps Poker Players Get Their ITIN and Refund

Handling passport certification, W-7 paperwork, and a nonresident tax return from Toronto, London, or Melbourne while you're also trying to plan your next tournament schedule is a lot to juggle. We handle the ITIN application, prepare and file the 1040-NR, and track the claim through to the refund — and because we work on a contingency basis, there's no upfront fee. You pay only when your refund actually comes through, which means the incentive to get it right (and get it processed as quickly as the IRS allows) sits with us, not with your wallet up front.

FAQ: ITINs, WSOP Winnings, and Getting Your 30% Back

Do I need an ITIN if I only cashed for a few hundred dollars?
Yes. Withholding and the ITIN requirement apply regardless of the size of the cash, though for very small amounts, the refund may not be worth the effort — it depends on your total withholding for the year.

Can I apply for an ITIN before I even play in the WSOP?
Generally no — ITIN applications need to be tied to an actual tax filing purpose, such as a return claiming a refund on tax already withheld, so most players apply after their first cash.

Is the ITIN the same as a work permit or immigration status?
No. An ITIN is strictly a tax processing number issued by the IRS. It has no bearing on your immigration status and doesn't authorize you to work in the U.S.

What if I lost my 1042-S from a past WSOP cash?
The IRS and the issuing casino keep records; a duplicate copy can usually be requested. Don't skip filing just because the original paperwork is missing.

How far back can I claim a refund on old tournament winnings?
Typically up to three years from the original filing deadline for that tax year — so a cash from a couple of summers ago is likely still claimable.

Frequently Asked Questions