1. What Is a CRA Individual Tax Number (ITN)?
An Individual Tax Number (ITN) is a 9-digit Canadian tax identification number issued by the Canada Revenue Agency to a non-resident individual who is not eligible for a Social Insurance Number (SIN) and needs a Canadian tax identifier. It is not an immigration document and it does not itself create entitlement to a tax credit.
Key Policy Highlights & Benchmarks
- CRA describes an ITN as a 9-digit number for non-resident individuals who need an identification number and are not eligible for a SIN.
- A non-resident can need an ITN to file a Canadian income-tax return.
- An ITN can also be needed for applications involving Canadian withholding-tax reductions or waivers, taxable Canadian property dispositions, section 216 returns or Underused Housing Tax returns.
- International students without a work permit can need an ITN to file a Canadian income-tax return or apply for certain family benefits and credits.
- A person eligible for a SIN must apply for a SIN instead of an ITN.
- An ITN is not the same thing as a taxpayer's right to claim a spouse, common-law partner or dependant.
An ITN is a tax identifier. Obtaining an ITN does not by itself create a tax credit, benefit, Canadian residency or immigration status.
Mandatory Action Checklist
✓Determine whether the person is a Canadian tax non-resident.
✓Confirm the person is not eligible for a SIN.
✓Identify the actual Canadian tax purpose requiring the identification number.
✓Check whether the person already has an ITN, SIN or TTN.
✓Use Form T1261 if an ITN is required.
2. Who Can Apply for an ITN?
Current CRA guidance allows a non-resident who is not eligible for a SIN to apply for an ITN when a Canadian tax-identification number is needed. CRA also specifically identifies international students without work permits as people who may need an ITN for tax returns or certain benefits and credits.
Key Policy Highlights & Benchmarks
- An ITN is not limited to non-resident spouses and children.
- Being a family member of a Canadian taxpayer is not by itself an ITN eligibility rule.
- The actual reason for applying should be selected on Form T1261 to reduce processing delays.
- If the applicant already has a valid Canadian tax number, CRA says to continue using it.
| Applicant Situation | ITN Position |
|---|---|
| Non-resident individual not eligible for a SIN who must file a Canadian income-tax return | May apply for an ITN |
| Non-resident individual seeking a Canadian withholding-tax waiver or reduction | May need an ITN |
| Non-resident disposing of taxable Canadian property | May need an ITN |
| Non-resident filing a section 216 return | May need an ITN |
| Non-resident filing a UHT return | May need an ITN |
| International student without a work permit who needs a Canadian tax number | May apply for an ITN |
| Person eligible for a SIN | Must use/apply for a SIN rather than an ITN |
| Person who already has an ITN, SIN or TTN | Continue using the existing Canadian tax number; do not file T1261 merely to obtain another number |
3. ITN vs SIN vs TTN
Canada has multiple types of individual tax identification numbers. Choosing the correct number depends primarily on Canadian residency and SIN eligibility rather than on whether someone is a spouse or dependant.
Key Policy Highlights & Benchmarks
- CRA currently says that an international student with a work permit should apply for a SIN.
- CRA says a TTN may be available when Service Canada cannot issue a SIN and the person is not entitled to an ITN.
- All three are 9-digit Canadian identification numbers, but they serve different legal and administrative purposes.
- A person should not obtain an ITN simply because obtaining a SIN is inconvenient.
| Tax Identifier | Typical Person | Issuer | Main Purpose |
|---|---|---|---|
| SIN | Canadian citizens, permanent residents and people eligible for a SIN, including many temporary residents authorized to work | Service Canada | Employment, tax administration, benefits and federal programs |
| ITN | Non-resident individual who is not eligible for a SIN | CRA | Canadian tax filing and specified non-resident tax matters |
| TTN | Canadian resident who is not entitled to a SIN or ITN in the relevant circumstances | CRA | Tax returns, benefits, credits and CRA services where a tax number is needed |
4. Form T1261: Current 2026 Application Process
Form T1261 is the CRA application form for an Individual Tax Number for non-residents. The current CRA process is a standalone application: complete and sign T1261, gather the required identity documents, and mail or courier the application to the CRA ITN Unit at the Sudbury Tax Centre.
| CRA Instruction | Current Rule |
|---|---|
| Form | T1261, Application for a Canada Revenue Agency Individual Tax Number (ITN) for Non-Residents |
| Submission method | Mail or courier the signed application and supporting documents to the CRA |
| CRA destination | Attn: ITN Unit, Services and Benefits, Section Benefits Division, Sudbury Tax Centre, 1050 Notre Dame Ave, Sudbury ON P3A 5C1, Canada |
| Processing estimate | Allow 6 to 8 weeks after CRA receives the application |
| Tax return attachment requirement | CRA does not require T1261 to be physically attached to every T1; it is a separate ITN application |
Critical Regulatory NoteDo not tell applicants to attach their T1261 automatically to their T1 tax return. CRA's current ITN instructions require a separate signed application package to be mailed to the ITN Unit.
Mandatory Action Checklist
✓Download the current T1261 form from Canada.ca.
✓Check the reason for applying and the supporting-document categories on the form.
✓Complete the applicant's identification information and addresses.
✓Sign and date the certification section.
✓Gather original, certified or notarized supporting documents as required.
✓Mail or courier the signed application and supporting documents to the CRA ITN Unit.
✓Keep proof of delivery and copies of the complete package.
5. Identity Documents and Certification
CRA requires identity-supporting documents with an ITN application. Documents must be current and include the applicant's name, date of birth and photograph. A valid passport is one accepted document, but CRA also lists other government-issued identity documents and permits original, certified or notarized copies.
Key Policy Highlights & Benchmarks
- CRA currently says a certified or notarized copy must be signed with a true-copy notation.
- The certifier can be a public notary, lawyer, medical physician or chartered professional accountant with the required membership identification.
- The certifier must provide their official title, address and contact number.
- Certification should appear on the supporting document or on a directly referenced certification page.
- Photocopies or faxes of certified documents are not accepted.
- The applicant cannot certify their own documents.
- Documents that are not in English or French must be accompanied by an official translation.
Do not state that only a notary or Canadian embassy official can certify a T1261 identity document. CRA's current list is broader.
| Evidence | Current CRA Treatment |
|---|---|
| Valid passport | Accepted supporting identity document |
| Driver's licence | May be accepted where it satisfies the identity-document requirements |
| Study permit / student authorization | May be used as a supporting identity document where applicable |
| Government-issued identity card | May be accepted where it satisfies the CRA requirements |
| Original document | Can be submitted; CRA says originals will be returned |
| Certified or notarized copy | Can be submitted if certified/notarized according to CRA's requirements |
6. Current ITN Processing Time
CRA currently tells applicants to allow 6 to 8 weeks after the ITN application has been received before expecting written notification of the assigned ITN.
Key Policy Highlights & Benchmarks
- The estimate begins after CRA receives the application, not necessarily on the day the applicant mails it.
- Courier delivery and CRA intake can affect the practical elapsed time.
- If no response has been received after 8 weeks, CRA says the applicant can contact the Sudbury Tax Centre to ask about the status.
- The 6-to-8-week period is an estimate, not a guaranteed service deadline.
Mandatory Action Checklist
✓Keep the courier or mailing tracking number.
✓Keep a full copy or scan of the T1261 application.
✓Keep copies of all identity documents submitted.
✓Record the CRA receipt/delivery date.
✓Contact CRA if more than 8 weeks have passed without a response.
7. Non-Resident Spouse and Common-Law Partner Amount
A Canadian tax resident may be able to claim the spouse or common-law partner amount on line 30300 when they supported their spouse or common-law partner and the spouse's applicable net income was below the taxpayer's basic personal amount, subject to the detailed rules. When the spouse is a non-resident, CRA requires the spouse's net world income from all sources, converted to Canadian dollars, to be considered.
Key Policy Highlights & Benchmarks
- The claim is made by the Canadian taxpayer on their own return, not by the non-resident spouse.
- For a non-resident spouse, CRA requires net world income from all sources inside and outside Canada.
- CRA may request supporting documentation.
- Only one spouse or common-law partner can claim the other for a given year.
- The credit is subject to the taxpayer's relationship, support, residency and income circumstances.
- Obtaining an ITN does not by itself establish entitlement to line 30300.
| Question | What Matters |
|---|---|
| Does the spouse live outside Canada? | If yes, CRA uses the spouse's net world income for the relevant tax year |
| Does the spouse have income? | The spouse's net income reduces or can eliminate the claim depending on the applicable threshold |
| Does the spouse have an ITN? | An ITN can be a Canadian tax identifier where the spouse needs one, but the ITN itself does not create the credit |
| Does CRA need proof? | CRA may request supporting documents; keep evidence of the spouse's identity, relationship, support and world income |
Critical Regulatory NoteDo not market an ITN as a guaranteed spouse tax-credit mechanism. The underlying line 30300 eligibility rules must be satisfied independently.
8. Non-Resident Dependants: Different Credit Rules
Non-resident children and other dependants are governed by separate tax-credit rules. An ITN does not turn a person into an 'eligible dependant.' The relevant credit depends on the relationship, age, living arrangements, support, income and other statutory conditions.
Key Policy Highlights & Benchmarks
- Line 30400 is the amount for an eligible dependant and has separate eligibility requirements.
- A person cannot claim line 30400 for a spouse or common-law partner; line 30300 is generally the relevant spouse amount where applicable.
- Only one eligible dependant claim can generally be made for the same dependant in the circumstances specified by CRA.
- CRA may require proof of support for a non-resident dependant.
- Gifts are not considered support for the applicable dependant-support test.
- If the dependant has enough income or assistance for a reasonable standard of living where they live, CRA may not consider the person dependent on the taxpayer for support.
Do not use 'dependant ITN' as shorthand for every non-resident family member. The tax-credit eligibility has to be established separately.
9. Filing a Canadian Tax Return Before Receiving an ITN
An applicant should not delay a required tax filing simply because the ITN application is still being processed. CRA's current non-resident guidance says that when a person has requested but not yet received a SIN or ITN and the filing deadline is near, they should file the return without the number and attach a note explaining why it is missing.
Key Policy Highlights & Benchmarks
- An ITN application is separate from the tax return.
- The lack of an ITN does not automatically eliminate the taxpayer's filing obligation.
- The correct approach can depend on the type of return, so the current CRA instructions for that return should be followed.
Mandatory Action Checklist
✓Apply for the ITN as early as possible.
✓If the filing deadline approaches and the ITN has not arrived, check the current CRA return instructions.
✓File the required return rather than assuming the ITN delay automatically extends the filing deadline.
✓Include an explanatory note where CRA instructs taxpayers to file without the number.
✓Do not file a second return merely because the ITN arrives later unless CRA instructs you to amend or otherwise update the filing.
10. ITN for International Students Without a Work Permit
CRA specifically identifies international students without a work permit as a group that may need an ITN to file a Canadian income-tax return or apply for family benefits and credits. International students who have a work permit should apply for a SIN instead.
| Student Situation | Current CRA Identification Rule |
|---|---|
| International student without a work permit | May need an ITN for a Canadian tax return or certain family benefits/credits |
| International student with a work permit | Must apply for a SIN |
| International student who already has a SIN, ITN or TTN | Continue using the existing tax number |
11. ITN and Canadian Property / Non-Resident Tax Matters
An ITN is not limited to family tax credits. CRA identifies several non-resident transactions where a Canadian tax identification number may be needed.
Key Policy Highlights & Benchmarks
- The actual need for an ITN depends on the tax transaction and the person's residency/SIN position.
- An ITN is not a replacement for a CRA business number or trust number.
- An ITN also does not establish Canadian tax residency.
| Tax Situation | Possible ITN Use |
|---|---|
| Canadian income-tax return | ITN can be used when the non-resident is not eligible for a SIN |
| Section 216 election/return for certain Canadian rental property | ITN may be needed |
| Underused Housing Tax return | ITN may be needed for an individual filer without a SIN |
| Disposition of taxable Canadian property | ITN may be required for the non-resident tax process |
| Request to waive or reduce Canadian withholding tax | ITN may be required for the application |
12. Does an ITN Expire?
Current CRA public guidance does not establish a general rule that an ITN automatically expires after three consecutive taxation years of non-use. CRA instead says that if a person already has an ITN, SIN or TTN, they should continue to use the number applicable to them.
Key Policy Highlights & Benchmarks
- Do not publish a universal three-year ITN expiry rule without an applicable CRA authority.
- If a person already has an ITN, they should not submit a new T1261 merely because several years have passed.
- If CRA indicates that a specific number is invalid or a person's circumstances have changed, contact CRA and follow its instructions.
- An ITN does not have the same expiry mechanics as a temporary SIN associated with a temporary immigration document.
Critical Regulatory NoteThe common claim that every unused ITN automatically expires after 3 years is not supported by the current CRA ITN guidance and has been removed.
13. Common ITN Mistakes
Mandatory Action Checklist
✓Assuming an ITN is mainly a spouse/dependant tax-credit number.
✓Applying for an ITN when the person is actually eligible for a SIN.
✓Describing a TTN as simply a temporary SIN replacement for everyone waiting for a SIN.
✓Attaching T1261 automatically to the Canadian taxpayer's T1 return.
✓Using only a notary or embassy official when CRA permits several types of certifier.
✓Submitting a photocopy or fax of a certified identity document.
✓Using a document that does not show the required identity information.
✓Using the outdated 6-to-12-week ITN processing estimate.
✓Claiming the ITN automatically creates entitlement to line 30300.
✓Ignoring the non-resident spouse's worldwide net income.
✓Treating every non-resident child as an eligible dependant for line 30400.
✓Assuming the ITN expires after three years without current CRA support.
✓Waiting for the ITN before filing a return when CRA instructions say to file without it if the deadline is near.
14. Practical ITN Decision Guide
| Situation | Next Step |
|---|---|
| Non-resident with no SIN who must file a Canadian tax return | Check ITN eligibility and apply using T1261 |
| Non-resident spouse of a Canadian taxpayer | Determine the taxpayer's line 30300 eligibility first; obtain an ITN only if the spouse actually needs a Canadian tax identifier |
| Non-resident child or dependant | Determine the specific tax-credit or filing requirement; do not assume an ITN is automatically required |
| International student without a work permit | Apply for an ITN if a Canadian tax return or eligible benefit/credit requires a number |
| International student with a work permit | Apply for a SIN rather than an ITN |
| Canadian resident not entitled to SIN or ITN | Check whether a TTN may be appropriate |
| Need ITN urgently for an upcoming tax filing | Apply early; if the deadline is near and the ITN has not arrived, follow CRA's instructions for filing without the number |
15. Step-by-Step 2026 ITN Application Roadmap
Mandatory Action Checklist
✓Confirm Canadian non-resident status and lack of SIN eligibility.
✓Identify the exact reason an ITN is required.
✓Download the current T1261 form from Canada.ca.
✓Complete the form and select the correct reason for applying.
✓Prepare current identity documents containing name, date of birth and photograph.
✓Submit original, certified or notarized documents according to CRA requirements.
✓Use an eligible certifier when submitting certified copies.
✓Obtain official translations for documents not in English or French.
✓Sign and date the T1261.
✓Mail or courier the complete application to the CRA ITN Unit in Sudbury.
✓Keep proof of delivery and a copy of the complete package.
✓Allow approximately 6 to 8 weeks after CRA receives the application.
✓Use the ITN for the tax purpose for which it was obtained and continue using it as instructed by CRA.
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Frequently Asked Questions (FAQs)
A non-resident individual who is not eligible for a SIN can apply for an ITN when a Canadian tax identification number is needed. CRA identifies uses such as filing a Canadian tax return, certain withholding-tax applications, taxable Canadian property dispositions, section 216 returns and Underused Housing Tax returns. International students without work permits can also need an ITN for tax returns or certain benefits and credits.
Not automatically. The Canadian taxpayer claims the spouse or common-law partner amount on line 30300 if the applicable eligibility rules are met. For a non-resident spouse, CRA requires the spouse's net world income from all sources. An ITN may be needed when the spouse actually requires a Canadian tax identification number, but obtaining an ITN itself does not create entitlement to the credit.
CRA currently says to allow 6 to 8 weeks after the ITN application is received. If you have not received a response after 8 weeks, CRA says you can contact the Sudbury Tax Centre to ask about the status.
CRA says supporting identity documents must be current and include the applicant's name, date of birth and photograph. Examples include a valid passport, driver's licence, study permit/student authorization and government-issued identity card. Originals, certified copies and notarized copies can be used, subject to CRA's certification requirements.
No. CRA's current process treats T1261 as a separate ITN application that is mailed or couriered to the CRA ITN Unit in Sudbury. If a tax-return deadline is near and the requested ITN has not yet arrived, CRA's current guidance says to follow the return instructions for filing without the ITN and include an explanatory note where required.
Current CRA ITN guidance does not state a general automatic three-year expiry rule. CRA instead says that if you already have an ITN, SIN or TTN, you should continue to use the applicable number. Do not submit a new T1261 solely because several years have passed unless CRA tells you that a new number is required.
Official Government Sources & Authorities
- CRA - Applying for an Individual Tax Number (ITN)
- CRA - Form T1261
- CRA - Line 30300: Spouse or Common-Law Partner Amount
- CRA - Line 30400: Amount for an Eligible Dependant
- CRA - Non-Resident and Deemed Resident Income Tax Guide
- CRA - Newcomers to Canada and CRA: SIN, ITN and TTN
- CRA - SIN and Canadian Tax Identification Numbers
- CRA - Tax Return Identification and Other Information
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2026 ITN Key Facts
CRA FormT1261 - Application for a CRA Individual Tax Number for Non-Residents
ITN Format9-digit Canadian tax identification number
Current Processing Estimate6 to 8 weeks after CRA receives the application
Application MethodSigned T1261 and supporting documents mailed to CRA
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