The TN nonimmigrant visa category allows Canadian and Mexican citizens to work in the United States in specific professional occupations defined under the United States-Mexico-Canada Agreement (USMCA), which replaced NAFTA in 2020. Unlike many work visa categories, TN status does not require employer sponsorship through a labor condition application or a petition filed months in advance - but it does have strict profession-by-profession requirements that disqualify many applicants who assume they qualify based on job title alone.
Who Can Use the TN Category
TN status is available exclusively to citizens of Canada and Mexico. Permanent residents of either country do not qualify; citizenship is the threshold requirement. The list of eligible professions is fixed and set out in Appendix 2 of the USMCA. It covers 63 occupational categories, including accountants, engineers, lawyers, scientists, pharmacists, and certain medical professionals. The full occupational list is published in 8 CFR § 214.6(c).
Each profession on the list carries its own minimum credential requirements. An engineer must hold a baccalaureate or licenciatura degree. A management consultant must hold a baccalaureate or licenciatura degree or equivalent professional experience defined as five years of experience in a related field. A nurse must hold a baccalaureate degree in nursing or a licenciatura degree, and a state/provincial license to practice. Simply working in a field that sounds similar to a listed profession is not enough - the job duties, employer’s business activities, and the applicant’s credentials must all align with the specific USMCA definition.
Some professions on the TN list that are commonly misunderstood include “computer systems analyst” - a title that covers systems analysis work but does not explicitly include all software developers or programmers, though many such workers qualify depending on their specific role. Similarly, “economist” covers economic analysis but not general business or financial analysis. Applicants should confirm their job duties map directly to the USMCA profession definition before applying.
The TN category does not have an annual cap, unlike the H-1B visa which is subject to a 65,000 base cap plus 20,000 for U.S. advanced degree holders. This absence of a cap makes TN a reliable option for qualifying professionals who cannot wait for H-1B lottery selection.
How Canadians Apply for TN Status
Canadian citizens have a distinct procedural advantage: they do not need to apply for a TN visa stamp at a US consulate. Instead, they can apply for TN status directly at a US port of entry - a land border crossing or a pre-clearance airport - by presenting their documents to a US Customs and Border Protection (CBP) officer.
The required documents for Canadian TN applicants at the border include: a valid Canadian passport, a letter from the prospective US employer describing the professional capacity in which the applicant will be employed, the duration of employment, and the professional’s educational qualifications; proof of credentials (typically a university degree and transcripts); a completed Form I-94; and the filing fee. As of 2024, the TN fee collected at the port of entry is $56. CBP officers review the documents on the spot and, if approved, issue a Form I-94 showing TN status, typically granted for up to three years.
Canadian TN applicants must bring a thorough documentation package. A vague employer letter - one that simply states a job title without explaining the duties - is a common cause of denial. The letter should describe daily job responsibilities in enough detail to demonstrate the work falls within the applicable USMCA profession category. It should also confirm the employer is a US entity offering legitimate employment in the stated field.
Canadians already in the US in another nonimmigrant status can file Form I-129 (Petition for Nonimmigrant Worker) with USCIS to change status to TN without leaving the country. Premium processing is available for Form I-129 filings; as of early 2025, the premium processing fee is $2,805, which guarantees a 15 business-day adjudication timeframe.
How Mexicans Apply for TN Status
Mexican citizens follow a different process. Unlike Canadians, they must obtain a TN visa stamp at a US embassy or consulate in Mexico before traveling to the United States. They cannot apply for TN status at a port of entry.
The process starts with a nonimmigrant visa application. The Mexican applicant completes Form DS-160 online, pays the $185 nonimmigrant visa application fee (MRV fee), and schedules an interview at a US consulate. Required documents at the consulate interview include: a valid Mexican passport, the DS-160 confirmation, the visa fee payment receipt, the employer support letter (same requirements as described for Canadian applicants), proof of professional credentials, and any state or provincial licenses required by the specific profession.
Consulate processing times for Mexican TN applicants vary significantly by location and time of year. The US embassy in Mexico City and consulates in Monterrey, Guadalajara, and other cities handle TN applications. Interview wait times at some locations have run from several weeks to several months depending on demand, so Mexican applicants should check the current appointment availability at travel.state.gov well in advance of their intended start date.
Once approved, Mexican TN visa holders are admitted to the US and receive a Form I-94 annotated with TN status, typically for up to three years, matching the duration of the visa issued. The actual period of admission is controlled by the I-94, not the visa stamp expiration date.
Mexican nationals already in the US in a valid nonimmigrant status can also file Form I-129 to change to TN status, following the same USCIS petition process available to Canadians.
Extending and Maintaining TN Status
TN status is granted in increments of up to three years and can be renewed indefinitely. There is no statutory maximum on how many times a TN holder can extend, and there is no aggregate maximum period of stay, unlike some visa categories. Extensions are filed using Form I-129 with USCIS, or Canadians can apply for a new TN admission at a port of entry.
One practical issue for TN holders involves the question of immigrant intent. TN is a nonimmigrant category, and the regulations in 8 CFR § 214.6(d)(1) require that the applicant intend to depart the US at the end of the authorized stay. However, USCIS has acknowledged - through the concept of “dual intent” applied selectively - that having a pending green card application does not automatically disqualify a TN renewal in all cases, though this area carries risk. TN holders whose employers are pursuing permanent residence on their behalf should consult with an immigration attorney before filing any immigrant visa petition, as a pending I-140 can complicate TN renewal or re-admission at the border.
TN holders are permitted to change employers, but the new employer must file a new Form I-129 with USCIS and receive approval - or the Canadian TN holder must obtain new TN status at a port of entry - before the worker begins employment with the new company. Working for an employer not listed on the current TN approval is a violation of status.
This article provides general information only and is not legal advice. Readers should consult a licensed immigration attorney for guidance specific to their circumstances.
Applicants who are denied TN status at a port of entry are typically issued a Form I-275 (Withdrawal of Application for Admission) and are returned to their home country. Unlike a consular denial, a CBP denial at the border does not carry a mandatory waiting period before reapplying, but reapplying immediately with the same documentation is unlikely to produce a different result. A stronger employer letter, additional credential documentation, or a formal USCIS petition via Form I-129 are better options after a port-of-entry denial.
