If 30 percent of your U.S. casino winnings were withheld, you already know how frustrating that feels.
And once you start researching how to recover that money, one thing becomes clear very quickly:
You cannot get your refund without an ITIN.
For Canadians, the ITIN application (Canada) process is the identification step that unlocks your U.S. gambling tax refund. It is also where most delays and rejections occur.
If you need a complete overview of how U.S. gambling tax recovery works from start to finish, read our full guide to U.S. gambling tax recovery for Canadians. This article focuses specifically on securing your ITIN correctly.
Let’s go step by step.
Why Canadians Need an ITIN
An Individual Taxpayer Identification Number is issued by the IRS to individuals who do not qualify for a U.S. Social Security Number. If you are reclaiming withheld gambling winnings as a Canadian resident, the IRS requires you to have an ITIN before processing your Form 1040-NR.
Without an ITIN, the IRS simply will not process your refund. It acts as the key that allows the IRS to process your return and issue your check.
Step-by-Step: ITIN Application Canada for Gambling Refunds
An ITIN application for Canadians must be submitted together with your U.S. non-resident tax return. In gambling refund cases, you generally cannot apply in advance. The ITIN is processed at the same time as your refund claim.
Here is how the process works:
Step 1: Complete Form W-7
Form W-7 identifies you to the IRS. Accuracy here determines whether your application moves forward or comes back rejected.
Most Canadians applying for an ITIN for gambling winnings will:
Check Box b: Nonresident alien filing a U.S. federal tax return
Enter their Canadian residential address on Line 3
Ensure their name matches their passport exactly, including all middle names
You can find more information in the official IRS instructions for Form W-7.
Step 2: Identity Documents
The IRS has a zero-tolerance policy for documentation. To successfully verify your identity, you must provide proof of both your identity and your foreign status.
The Standalone Solution: A valid Passport is the only document that proves both identity and foreign status on its own. Without one, you must provide at least two other original documents (like a birth certificate and driver’s license), which significantly increases the risk of a technical rejection.
The "Originality" Requirement: The IRS will only accept original physical documents or certified copies from the original issuing agency. Standard notarized copies, digital scans, and photocopies from a Canadian lawyer or notary are strictly rejected.
Here are the three ways to submit your identity documents:
Method | Process | What Happens to Your Passport |
|---|---|---|
1. Mailing the Original | You mail your physical passport to the IRS in Austin, Texas. | You will be without it for 8 to 12 weeks. You cannot travel internationally during this time. |
2. Service Canada | You visit a passport office and request a "Certified True Copy" to mail instead. | You keep your original passport for travel. Note: You must explicitly ask for an official stamped seal (Wet Seal). Digital or non-stamped copies are rejected. |
3. Certified Acceptance Agent | A CAA authenticates your passport in-person or via a video interview. | The fastest option. In-person is instant. Work directly with an IRS Certified Acceptance Agent and keep your passport in your possession throughout the process. |
Casino Tax Refund is an IRS-authorized Certified Acceptance Agent in Canada. We verify your documents locally and submit the required certification to the IRS on your behalf.
For many applicants, this removes the biggest risk in the entire process.
Ready to skip the paperwork and get it done right? Casino Tax Refund's IRS-authorized team handles the entire ITIN process for you, from start to finish.
Step 3: Attach Form 1040-NR
For Canadians, an ITIN cannot be issued "just in case." To secure an ITIN, the IRS requires proof of a specific federal tax reason, which is provided by your completed Form 1040-NR (U.S. Nonresident Alien Income Tax Return).
On this return you:
Report U.S. gambling winnings
Deduct eligible losses under the Canada–U.S. tax treaty
Calculate your refund
The W-7 and 1040-NR must be mailed together as one complete package.
Step 4: Mail the Complete Package
Most Canadian ITIN applications are mailed to:
Internal Revenue Service
ITIN Operation
Austin, TX 73301-0215
USA
Use trackable international shipping and keep copies of everything you submit.
How Long Does the IRS ITIN Process Take?
The recovery process is a marathon, not a sprint. Because it involves two separate IRS departments, you should expect the following timelines in 2026:
Phase | Estimated Timeline |
|---|---|
ITIN Assignment | Typically 8 to 11 weeks. |
Refund Processing | Once assigned, your return moves to manual review. Total wait times are currently 9 to 15 months due to IRS backlogs. |
Rejection Penalty | If your application is rejected due to a technical error, the entire timeline restarts from zero. |
Common Reasons ITIN Applications Get Rejected
Most ITIN rejections are caused by small administrative errors, not eligibility problems.
Here are the most common reasons applications get sent back:
Selecting the wrong reason box on Form W-7
Submitting a notarized copy instead of a Certified True Copy or CAA certification
Name not matching the passport exactly, including middle names
Using Canadian date format instead of MM/DD/YYYY
Leaving the foreign address section incomplete
Using a digital or photocopied signature
Submitting an outdated version of Form W-7
Failing to attach the original Form 1042-S
ITIN Expiry Rule
Your ITIN is not a permanent ID. It remains active only if it is "used" on a federal tax return at least once every three consecutive years.
The 3-Year Clock: If your ITIN was not included on a U.S. tax return for the tax years 2022, 2023, and 2024, it expired on December 31, 2025.
No Automatic Notice: The IRS does not always send a notification when an ITIN deactivates. Many Canadians only discover their status has expired when their refund is frozen or they receive an IRS Notice CP48.
How to Renew: Renewal is essentially the same as a new application. You must submit a fresh Form W-7, check the "Renew an Existing ITIN" box, and provide updated identity documents (like your passport) along with your tax return.
Should You Apply for an ITIN Yourself or Use a Professional Service?
While you can complete the ITIN application (Canada) process on your own, it is a high-stakes administrative task. A single mismatch between your casino slip and your application will restart the clock on a timeline that already averages 9 to 15 months. If you do it alone, make sure to:
Audit Every Field: The most common rejections in 2026 are for missing middle names or non-U.S. date formats.
Verify Identity Standards: Ensure you have sent an original passport or a Certified True Copy. The IRS will reject standard notary stamps.
Track Your Shipment: Use registered mail with tracking. If the IRS loses your original passport, the replacement process in Canada is both costly and slow.
Why Canadians Choose Casino Tax Refund:
As a Certified Acceptance Agent (CAA), we act as the bridge between you and the IRS, providing a "first-time right" guarantee that DIY applications lack.
Keep Your Passport: We verify your ID in Canada (in-person or via 24-hour virtual turn-around) so you never lose your ability to travel.
Expert Pre-Audit: We review your 1040-NR and 1042-S slips to ensure the numbers match perfectly before they hit an IRS agent's desk.
Success-Based Pricing: We charge a transparent flat fee, not a percentage of your winnings. If we cannot recover your refund, we refund our service fee—meaning we only win when you win.
Getting Your Money Back Starts With Getting Your ITIN Right
The 30% withheld from your U.S. casino winnings is not gone, but recovering it depends entirely on submitting a clean, complete ITIN application alongside your tax return. Whether you handle it yourself or work with a Certified Acceptance Agent, the key is getting it right the first time. Delays, rejections, and lost documents are avoidable with proper preparation.
If you're ready to start your claim, Casino Tax Refund handles the entire process, from Form W-7 to your refund cheque.
FAQ About ITIN Applications From Canada
How do I get an ITIN number as a Canadian?
To complete an ITIN application Canada, you must mail a physical package to the IRS in Austin, Texas. This package includes: - A completed Form W-7 - A U.S. non-resident tax return (Form 1040-NR) - The original Form 1042-S issued by the casino - Certified identity documentation For gambling refunds, the ITIN application must be tied directly to a specific U.S. tax return. In most cases, you cannot apply for an ITIN in advance without filing.
Can Canadians apply for an ITIN online?
No. The IRS does not offer a fully digital application process. You must submit paper documents via physical mail. Be wary of services claiming otherwise; they typically only digitize your data for a later paper submission.
Can I get an ITIN without mailing my original passport to the U.S.?
Yes. While the IRS generally requires either your original passport or a Certified True Copy from the issuing agency, you can avoid mailing your passport by working with an IRS Certified Acceptance Agent (CAA). A CAA verifies your identity in Canada and submits the required certification to the IRS, allowing you to keep your passport in your possession.
Is the ITIN application free for Canadians?
The IRS does not charge a fee to issue the number itself. However, you will incur costs for secure overnight couriers to the U.S. and professional fees if you use a CAA to avoid mailing your original ID.
Which ITIN application form do Canadians need?
Canadians use the standard IRS Form W-7. There is no separate Canadian version. It is critical to use the correct "Reason for Applying" code, as errors here are a primary cause of rejection.
How long is my ITIN valid?
An ITIN remains valid as long as it is used on a U.S. federal tax return at least once every three consecutive years. If it is not used for three consecutive tax years, it expires automatically. Renewal requires submitting a new Form W-7, often with a tax return attached. Many Canadians only realize their ITIN has expired when a refund is delayed.