Do Canadians need an ITIN?
Sometimes. An ITIN is a nine-digit U.S. tax number for people who have a federal tax purpose but aren't eligible for a Social Security number.IRS A Canadian living in Canada generally isn't eligible for an SSN, so the ITIN is the number you would use.
The key words are federal tax purpose. The IRS counts these: you must file a U.S. return, you want to claim a refund or report income on one, you can be claimed as a spouse or dependant for an allowable tax benefit, or someone has to report your U.S. income and needs your number.IRS A return with nothing on it doesn't show a tax purpose, so there is nothing to apply for.
That is why owning a U.S. condo, or spending winters in Florida or Arizona, isn't a reason by itself. The reason appears when income, a sale or a return does. And an ITIN is for federal tax only: it doesn't give you work authorization, change your immigration status or qualify you for Social Security benefits.IRS Our ITIN overview covers the basics.
Do I need an ITIN?
Pick the closest match. This is a general guide, not tax advice.
Rent from a U.S. property is U.S.-source income. Either tax is withheld or you file a Form 1040-NR, and both routes usually ask for a taxpayer number.
The buyer withholds under FIRPTA, and you need a taxpayer number to claim that withholding back on your return. The IRS lets a seller apply once a binding contract exists.
If a U.S. citizen or resident files a return that claims a tax benefit for you, Form W-7 goes in with that return.
The IRS source rules put pay for services where the work is done. A payer may still ask for a Form W-8BEN, and your SIN can serve as the taxpayer ID there. Check before you pay for an ITIN you may not need.
Count your days first: 31 this year and 183 weighted days over three years. If you are under the line, there may be nothing to file.
An ITIN is only issued for a U.S. tax purpose, so confirm yours before you pay for anything.
When a Canadian needs an ITIN
These are the situations we see most. The table shows what U.S. paperwork each one creates and how the ITIN application is usually filed.
| Your situation | What it creates | ITIN needed? | How it is filed |
|---|---|---|---|
| You rent out a U.S. home | U.S.-source rent, taxed by withholding or on a Form 1040-NR Pub. 519 | Usually | W-7 with your 1040-NR, or Exception 1(d) if the payer requires an ITIN IRS |
| You sell a U.S. home or land | FIRPTA withholding by the buyer, settled on your 1040-NR | Yes | Exception 4, once there is a binding contract. FIRPTA guide IRS |
| You are a spouse or dependant on a U.S. person's return | A tax benefit claimed for you | Yes | W-7 attached to that return. Canadian dependants get a special rule on proving U.S. residency IRS |
| You claim a treaty rate on U.S. income | A Form W-8BEN given to the payer | Sometimes | Your SIN may work as the ID. Where a U.S. number is required, W-7 box a IRS |
| You work for U.S. clients from Canada | Usually no U.S.-source income, because the work is done in Canada Pub. 519 | Rarely | A payer may ask for a W-8BEN. Confirm before applying |
| You own a U.S. home or winter there | Nothing, unless income, a sale or your day count does | Not by itself | Count your days. Snowbird section |
Deep diveRenting out a U.S. property: withholding or a return
With no election, a nonresident is taxed at 30% (or a lower treaty rate) on gross U.S. rent, usually withheld by the tenant or property manager.Pub. 519
You can instead choose to treat all your U.S. real-property income as effectively connected with a U.S. business. You then deduct expenses and pay graduated rates on the net rent, filed on a Form 1040-NR with a statement in the first year.Pub. 519
If you apply for the ITIN without a return under Exception 1(d), the IRS wants an original document or signed letter from the withholding agent, on letterhead, saying an ITIN is required.IRS
Canadian snowbirds: day counts, Form 8840 and ITINs
Winter in the U.S. doesn't create a U.S. tax return by itself. What the IRS counts is days. You are a U.S. resident for tax purposes if you were in the U.S. at least 31 days this year and 183 days over three years, counting every day this year, a third of last year's days and a sixth of the year before.Pub. 519
The IRS's own example: 120 days in each of three years comes to 180 weighted days (120 + 40 + 20), which is under the line.Pub. 519
Even if you reach 183, you can still be treated as a nonresident if you were in the U.S. fewer than 183 days this year, keep your tax home in Canada and have a closer connection to Canada than to the U.S. You claim that by filing Form 8840 by the due date of Form 1040-NR. Miss the deadline and you generally lose the exception.Pub. 519
Snowbird day counter
Enter your days in the U.S. for each year. The IRS formula is applied below. An estimate, not a ruling.
Formula: days in 2026, plus 1/3 of days in 2025, plus 1/6 of days in 2024, with at least 31 days in 2026. Some days are excluded under Pub. 519, such as regular commuting from Canada. Dual residents can also rely on the treaty tie-breaker, claimed on Form 1040-NR with Form 8833.Pub. 519
So does a snowbird need an ITIN? Only if the day count or income puts you on a U.S. return, or a payer or a sale needs your number. Snowbirds selling a Florida or Arizona condo are the most common case. See the FIRPTA withholding refund guide.
How to get an ITIN in Canada, step by step
Six steps, in order. You can do all of them from home.
- 1
Confirm your U.S. tax reason
Use the picker above. Most first-time applicants attach a U.S. tax return (Form 1040-NR). A few reasons qualify for an exception that lets you apply without one.IRS The reason you pick on the form has to match the paperwork behind it.
Form W-7, reason box - 2
Check your passport
A current passport is the only stand-alone document: it proves identity and foreign status, so you need nothing else.IRS It must not be expired when the application is submitted. Without a passport you need at least two documents from the IRS list, one with a photo. Our guide to the three ways to verify your identity covers the options.
Valid passport - 3
- 4
Get your documents verified
You can mail originals or certified copies to the IRS, visit an IRS office in the U.S., or use an acceptance agent. A Certifying Acceptance Agent checks the documents and, per the IRS, returns them right after reviewing them.IRS At Nolly.com, your identity is verified on a video call with a Certifying Acceptance Agent.
Video call with a CAA - 5
Your application goes to the IRS
The agent mails the application package to the IRS ITIN office in Austin, Texas, with your return if one is required. The package goes to the address in the W-7 instructions, not the one in the return instructions.IRS
IRS ITIN Operation, Austin - 6
Wait for the IRS
Allow 7 weeks, or 9 to 11 weeks if you apply from overseas or between January 15 and April 30.IRS If nothing has arrived by then, call 267-941-1000 from outside the U.S. (not toll-free).IRS Keep your ITIN letter. You will use the number on every U.S. return and treaty form.
9–11 weeks from Canada
The IRS sends letters, and returns any documents it holds, to the mailing address on your Form W-7.IRS Use an address where you will actually collect mail for the next few months.
Four ways to apply from Canada
The IRS accepts applications four ways. Only two work from Canada without travel to the U.S. Our guide to getting an ITIN without mailing your passport walks through the same options.
| Route | Who checks your documents | Cost | Good to know |
|---|---|---|---|
| Mail it to the IRS | The IRS, from originals or certified copies you send | No agent fee. You pay postage or courier | Documents come back to your mailing address within 60 days of mailing IRS |
| IRS Taxpayer Assistance Center | An IRS employee, in person | Free | U.S. only, by appointment. It can take several weeks to get one IRS |
| Acceptance Agent | The agent reviews and mails your supporting documents | Fee-based | Helps complete the W-7. Does not authenticate documents IRS |
| Certifying Acceptance Agent | The agent authenticates most documents and returns them right away IRS | Fee-based. Nolly.com: $199 | Works in the U.S. and abroad. Nolly.com is on the IRS Canada list IRS |
Source: the IRS pages linked in each row. Agent fees vary by agent.
Deep diveWhich documents does the IRS accept?
A current passport is the only stand-alone document. It proves your identity and your foreign status, so you submit nothing else.IRS It counts as current only if it hadn't expired by the date the W-7 is submitted.
Without a passport, you must submit at least two types of documents from the IRS list of 13 that together prove identity and foreign status, and one must carry your photograph. The list includes a national identification card, a foreign driver's license and a civil birth certificate.IRS
Your agent can tell you which combination fits your situation before you pay for the application.
The Canada–U.S. tax treaty and your CRA return
The Canada–U.S. tax treaty can lower or remove U.S. withholding on certain kinds of income. The IRS says you claim a reduced treaty rate by giving the payer a Form W-8BEN with a taxpayer ID, and that the ID can be a U.S. or a foreign TIN.IRS For many Canadians that means the SIN does the job. The W-7 has its own box for treaty claims where an ITIN is required.IRS
An ITIN doesn't change what you report at home. If you were a resident of Canada and your Canadian return includes income from outside Canada that was taxed abroad, you may claim the federal foreign tax credit using Form T2209. The credit is the lesser of the foreign income tax you actually paid and the Canadian tax otherwise payable on that income. Foreign amounts are converted to Canadian dollars at the Bank of Canada rate on the day they arose.CRA
Whether you owe tax in both countries, and how the treaty applies, depends on your facts. This page is general information, not tax advice. A cross-border tax professional can run the numbers for you.
How long does an ITIN take from Canada?
The IRS gives two ranges. Allow 7 weeks for the IRS to tell you the status of your application, or 9 to 11 weeks if you apply from overseas or between January 15 and April 30.IRS From Canada, plan on the longer range. The IRS sets the pace, and nobody can promise you a date.
Illustration of the IRS allowance in the Form W-7 instructions.IRS Not a guarantee.
An application the IRS can't process stalls the clock. The causes that come up most are an expired passport (documents must be current when you submit),IRS a missing return where one is required, the wrong reason or exception, and an expired ITIN used without renewal.IRS Our guide to why ITIN applications get rejected lists the errors in detail.
ITIN expiry and renewal
An ITIN expires on December 31 of the third consecutive tax year in which it wasn't included on a U.S. federal return.IRS You only need to renew it if it will go on a return and it has expired. If it only appears on information returns filed by third parties, you can wait until you file a return.IRS
Deep diveWhat renewal involves
A renewal uses the same Form W-7, with the renewal box ticked and your existing ITIN entered. You attach a U.S. return unless an exception applies, plus current identity documents.IRS
If you file a return with an expired ITIN, the IRS warns it may delay processing.IRS Nolly.com's expired ITIN renewal guide has the details.
What Nolly.com charges for an ITIN
One flat fee, in U.S. dollars, paid to Nolly.com. Agent fees vary across firms.IRS
Prices in U.S. dollars.
ITIN for Canadians: your questions answered
Only if there is a U.S. tax reason. Typical ones are filing a U.S. return, selling U.S. property, renting some out, or being listed on a U.S. person's return. Owning a condo or wintering in the U.S. isn't a reason by itself.IRS
No. A SIN is a Canadian number and an SSN is a U.S. Social Security number. An ITIN is a separate nine-digit IRS number for tax use only, issued to people who aren't eligible for an SSN. Your SIN goes on line 6b of Form W-7 as your home-country tax ID.IRS
Complete Form W-7, have your identity documents verified, and send the package to the IRS with your tax return if one is required. You can mail documents to the IRS or use an IRS-approved acceptance agent in Canada. Nolly.com verifies identity on a video call with a Certifying Acceptance Agent.IRS
The IRS says to allow 7 weeks, or 9 to 11 weeks when you apply from overseas or between January 15 and April 30. Timing is set by the IRS and isn't guaranteed.IRS
Not because of the winters. Day counts decide whether you are treated as a U.S. resident: 31 days this year and 183 weighted days over three years. Even then, Form 8840 can show a closer connection to Canada. A snowbird needs an ITIN when income, a sale or a return puts them on U.S. paperwork.Pub. 519
Sometimes. The W-7 instructions list exceptions, including third-party withholding on passive income, some treaty claims, mortgage interest and the sale of U.S. real property. You attach documents that prove the exception instead of a return.IRS
The IRS writes to you at the address on your application and returns any documents it holds to the mailing address on Form W-7. Applications from abroad take 9 to 11 weeks, so give an address where you will receive mail.IRS
Yes. It expires on December 31 of the third consecutive tax year it wasn't included on a U.S. federal return. You renew only when you will use it on a return. Renewal uses Form W-7 and costs $199 with Nolly.com.IRS
An ITIN doesn't change your Canadian reporting. If your Canadian return includes foreign income taxed abroad, the foreign tax credit (Form T2209) can relieve tax already paid, up to a limit.CRA The treaty can also matter. This is general information, not tax advice.
You can correct the problem and reapply. Common causes are an expired or uncertified document, a missing return where one is required, and details that don't match. With Nolly.com you get your money back if the application is rejected (terms apply). Our rejection guide has examples.
More questions? See the full Nolly.com FAQ.
How we checked this
Every figure on this page comes from IRS.gov or the Canada Revenue Agency and was checked on October 1, 2026. Nolly.com's own prices are the only exception.
Nolly Services Inc, d/b/a Nolly.com, appears on the IRS page Acceptance agents – Canada. Nolly.com is a private company and isn't part of the IRS.
- Instructions for Form W-7 (Rev. 12-2024)https://www.irs.gov/instructions/iw7
- Individual Taxpayer Identification Number (ITIN)https://www.irs.gov/individuals/individual-taxpayer-identification-number
- How do I apply for an ITIN?https://www.irs.gov/individuals/how-do-i-apply-for-an-itin
- Acceptance agent programhttps://www.irs.gov/individuals/international-taxpayers/acceptance-agent-program
- Acceptance agents - Canada (IRS list; page reviewed 30 September 2026)https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-canada
- Publication 519, U.S. Tax Guide for Alienshttps://www.irs.gov/publications/p519
- Claiming tax treaty benefitshttps://www.irs.gov/individuals/international-taxpayers/claiming-tax-treaty-benefits
- Canada Revenue Agency: Federal foreign tax credit (line 40500)https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/line-40500-federal-foreign-tax-credit.html
- ITIN guidance for foreign property buyers/sellershttps://www.irs.gov/individuals/international-taxpayers/itin-guidance-for-foreign-property-buyers-sellers
Reviewed by Nolly.com's Certifying Acceptance Agent team. Updated October 1, 2026. General information, not tax advice.
