If you want to hire a Canadian or Mexican professional on a TN visa, your company now must be a US‑based entity. This is one of the most important changes from the 2025 USCIS policy update: foreign companies with US operations can no longer sponsor TN workers directly.
The upside is that TN sponsorship remains much simpler than other work visas like the H‑1B. There is no lottery, no labor certification (PERM), and government filing fees are relatively low. However, employers still have specific legal and documentation obligations they must meet.
Key Takeaways
- Only US‑based entities can sponsor TN workers under the 2025 policy.
- Employers must provide a detailed TN support letter on company letterhead.
- No USCIS petition is required for Canadians applying at the border.
- Mexican applicants generally require the employer to file Form I‑129 with USCIS.
- Job duties must clearly align with one of the 63 USMCA‑approved professions.
- Employer fees are minimal compared to H‑1B (as low as about USD 56 when Canadians apply at the border).
- Premium processing is available (around USD 2,805 under current fee levels) if faster adjudication is needed for I‑129 filings.
The 2025 Policy Changes Employers Must Know
1. US Entity Requirement
The biggest change in 2025 is that the TN employer must be a US entity. In the past, some foreign companies with US activities could sponsor TN workers; that is no longer permitted.
What this means in practice:
- If your company is Canadian or Mexican owned but has a US subsidiary, branch, or affiliate, the TN sponsorship must come from the US entity, not the foreign parent.
- Self‑employment or arrangements where the foreign company is effectively the “employer” now risk denial.
2. Stricter Job‑Duty Alignment
USCIS now looks much more closely at actual job duties, not just job titles, to ensure they match a listed USMCA profession.
- Vague, generic, or overly broad job descriptions are likely to be denied.
- You must be able to show that the role truly fits a specific occupation on the USMCA schedule (e.g., Engineer, Accountant, Computer Systems Analyst, etc.).
3. No More Experience Substitution
For professions that require a bachelor’s degree (or higher), work experience alone can no longer substitute for the degree.
- The applicant must hold the required degree or credential for that TN profession.
- Non‑equivalent degrees or unrelated majors will face higher scrutiny.
What Employers Must Provide
Below is an overview of core employer responsibilities when sponsoring a TN worker.
| Requirement | Details |
|---|---|
| Valid job offer | Full‑time or part‑time role in a qualifying TN profession |
| Support letter | Detailed letter on official company letterhead |
| US entity status | Sponsorship by a US‑based company, not a foreign affiliate |
| Form I‑129 | Required for Mexican citizens (and for status changes in US) |
| Compliance | Pay wages, withhold taxes, follow labor and immigration law |
The TN Support Letter: Employer Checklist
The employer support letter is the centerpiece of a TN application. It is required for both Canadian and Mexican applicants and is often the deciding factor in approval or denial.
Required Elements
Company Information
- Printed on official company letterhead.
- Full legal name, address, phone, and email.
- Clearly dated (ideally within 30 days of intended start date).
- Signed by an authorized representative (HR, hiring manager, executive, or legal representative).
- Original “wet” signature in blue ink is still preferred in many cases.
Job Details
- Exact job title that corresponds to a USMCA profession category.
- Detailed description of day‑to‑day duties (not just generic bullet points).
- US work location(s) where the duties will be performed.
- Indicate whether the position is full‑time or part‑time.
Employment Terms
- Salary or compensation amount (and, if applicable, hourly rate and weekly hours).
- Start date and anticipated end date (TN is typically granted up to 3 years at a time).
- Clear statement that the role is temporary and not permanent immigration sponsorship.
Qualification Confirmation
- Statement identifying the specific USMCA profession (e.g., “TN status is requested under the USMCA profession of Engineer”).
- Confirmation that the position requires that profession’s educational level.
- Confirmation that the applicant holds the required degree or credential (mention degree, major, and granting institution).
Suggested Support Letter Structure
- Opening paragraph – Purpose of the letter (supporting TN classification for the named beneficiary).
- Company and position overview – Who you are, what the company does, and what position is being offered.
- Detailed job duties – Specific, technical responsibilities showing how the role fits the chosen USMCA profession.
- Applicant qualifications – Degrees, licenses, and relevant experience that match the job requirements.
- Terms of employment – Salary, hours, worksite location, start/end dates, and temporary nature of the role.
- Closing – Explicit request that TN classification be granted.
- Signature block – Name, title, contact information, and signature of the company representative.
Important tip: Avoid vague phrases like “other duties as assigned” as your main description. Officers want precise tasks that clearly correspond to one TN occupation.
Process Differences: Canadian vs. Mexican Employees
The TN process is different for Canadian and Mexican citizens, even though the underlying classification is the same.
For Canadian Employees
| Step | Details |
|---|---|
| Employer role | Provide a support letter and job offer |
| Application method | Employee applies directly at a US port of entry or preclearance |
| USCIS petition | Not required for entry from Canada in most standard cases |
| Processing time | Often same day at the border or airport |
| Government fee | Around USD 56 (I‑94 and related border fees, paid by employee) |
Canadians generally do not need a visa stamp. They bring their support letter and documents to a land border crossing or airport CBP officer, who adjudicates TN status on the spot.
For Mexican Employees
| Step | Details |
|---|---|
| Employer role | Provide support letter; file Form I‑129 for status changes |
| Application method | Consular visa process in Mexico (DS‑160 + interview) |
| USCIS petition | Required if changing to TN status from within the US |
| Processing time | Several weeks or more (consulate + USCIS time) |
| Government fees | Approx. USD 185 visa fee + USD 460 I‑129 filing fee |
Mexican citizens must:
- Complete Form DS‑160.
- Attend a US consular interview in Mexico.
- Obtain a TN visa stamp in their passport before entering the US as TN.
If they are already in the US in another status and want to change to TN without leaving, the employer files Form I‑129 with USCIS.
Employer Costs and Fees
TN sponsorship costs are modest compared to H‑1B or other work visas.
| Fee Type | Typical Amount | Who Usually Pays |
|---|---|---|
| I‑94 / border fee (Canada) | ~USD 56 | Employee |
| TN visa fee (Mexico) | ~USD 185 | Employee |
| Form I‑129 filing fee | USD 460 | Typically employer |
| Premium processing (optional) | ~USD 2,805 (current level) | Employer if requested |
| Visa integrity / security fees (if applicable) | ~USD 250 (varies by rule) | Often applicant/employer by agreement |
Legally, employers are not always required to pay every fee, but many do so as part of a competitive recruitment package.
Ongoing Employer Obligations
Your responsibilities continue after the TN is approved.
During Employment
- Pay the offered wage – Salary and conditions must match what you stated in the support letter.
- Maintain job duties – The employee must primarily perform the duties described in the TN application.
- Tax and payroll compliance – Treat the worker as any other US employee for payroll, tax withholding, and labor‑law purposes.
- Monitor changes – Material changes in job title, duties, or primary worksite may require a new TN filing.
If Job Duties or Structure Change
- Material changes (new role, substantially different duties, or new primary employer) typically require a new TN application (border filing or I‑129).
- Minor changes (e.g., same employer and duties but occasional work at a different client site) may not require immediate refiling, but you should document them and consult counsel if in doubt.
Multiple Employers
TN workers can have more than one US employer at the same time.
- Each employer must issue its own support letter.
- Additional employers may require filing a Form I‑129 to add them while the worker is inside the US.
Common Employer Mistakes to Avoid
These pitfalls frequently lead to TN denials or RFEs:
- Vague or generic job descriptions – Duties must clearly match a specific USMCA profession.
- Wrong TN category chosen – The job title can differ from the USMCA label, but duties must fit the correct occupation.
- No proof of required degree – Never omit clear confirmation that the applicant holds the correct degree/license.
- Foreign entity as sponsor – Remember that only US‑based entities qualify under the 2025 policy.
- Boilerplate support letters – Recycled or template letters without role‑specific details are high‑risk.
Frequently Asked Questions
Does a TN visa require employer sponsorship?Yes. TN classification requires a US employer to offer a qualifying professional role and issue a support letter. Self‑employment is not allowed. However, unlike H‑1B, there is no lottery and no PERM labor certification.
What must an employer include in a TN support letter?The letter must include: job title, specific job duties, USMCA profession, worksite location, salary, start/end dates, and a statement that the position is temporary and professional in nature. It must be on company letterhead and signed by an authorized representative.
Do employers always file Form I‑129 for TNs?Not always. Canadians applying at the border generally do not need an I‑129. For Mexican citizens, and for anyone changing to TN status from within the US, the employer must file Form I‑129 with USCIS.
How much does TN sponsorship cost an employer?In the simplest Canadian border case, the employer may pay nothing. If an I‑129 is required, the base fee is USD 460, with optional premium processing around USD 2,805. These costs are far lower than typical H‑1B expenses.
Can foreign companies sponsor TN visas?No, not directly. Under the 2025 policy, only US‑based entities can act as the TN employer. Foreign companies with US operations must use their US subsidiary, branch, or affiliate as the official sponsor.
How long does TN processing take?
- Canadians at the border: often same‑day decisions.
- Mexican consular cases: several weeks or more.
- USCIS I‑129 filings: a few months under regular processing; about 15 calendar days with premium processing.
Can a TN worker have multiple US employers?Yes. Each employer must provide its own TN support letter, and the worker must maintain separate TN authorization for each role.
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