TN Visa vs. H-1B: Which Work Visa Is Right for Canadian and Mexican Professionals in Florida?

For Canadian and Mexican professionals taking jobs in Florida — particularly in the tech, healthcare, and engineering corridors around UCF, Lake Nona Medical City, and the Orlando metro — two work-visa categories dominate the conversation: the TN visa under USMCA and the H-1B specialty-occupation visa. They are very different tools, and choosing the wrong one can cost months and a green-card opportunity.

This guide compares both visas from the perspective of a Florida-based employer and a USMCA-country professional, drawing on nearly three decades of business-immigration practice from our Orlando office. Attorney Gustavo Z. Vargas is Florida Board Certified in Immigration and Nationality Law.

What is the TN visa (USMCA)? Who qualifies?

The TN classification was created by the North American Free Trade Agreement (NAFTA) in 1994 and continues unchanged under the United States-Mexico-Canada Agreement (USMCA) since 2020. It allows citizens of Canada and Mexico to work temporarily in the United States in one of a defined list of professional occupations.

Key TN requirements per INA § 214(e) and the USMCA Appendix 2 professions list:

• Canadian or Mexican citizenship (TN is not available to permanent residents of those countries, only citizens).
• The U.S. job must be on the USMCA professions list — about 60 occupations including engineers, accountants, scientists, medical professionals, university teachers, lawyers, computer systems analysts, and more.
• The applicant must hold the required credentials — typically a bachelor’s degree or, for some categories, a license or experience equivalent.
• A U.S. employer must have offered the job via a support letter detailing the role, duration, and credentials of the worker. Self-employment is not allowed.
• Nonimmigrant intent — the applicant must demonstrate the intent to return home when the work is complete. Unlike H-1B, TN does not allow dual intent.

What is the H-1B visa? Key differences

The H-1B is the U.S.’s primary specialty-occupation visa for foreign professionals, governed by INA § 101(a)(15)(H)(i)(b). Unlike TN, it is open to nationals of any country — but it is also subject to a strict annual numerical cap.

Per USCIS, the H-1B cap is 85,000 visas per fiscal year: 65,000 under the regular cap and 20,000 reserved for beneficiaries with U.S. master’s degrees or higher. When demand exceeds supply — as it has every year since 2014 — USCIS runs a registration lottery in March, and only selected registrations can file the full petition.

The FY2025 cycle received over 480,000 registrations after USCIS implemented the beneficiary-centric selection rule. The resulting selection rate was approximately 28–30% (USCIS, March 2025). FY2026 trends are similar.

Side-by-side comparison: eligibility, processing, dual intent, employer burden

USMCA professions list: does your job qualify for TN?

The USMCA Appendix 2 list defines the professions eligible for TN classification. Some of the most relevant for Florida employers:

• Engineer — baccalaureate or licenciatura degree. Includes most engineering disciplines (mechanical, electrical, civil, chemical, software per recent USCIS interpretations).
• Computer Systems Analyst — baccalaureate degree or post-secondary diploma plus 3 years of experience. The USCIS interpretation has tightened in recent years; pure software-development roles are sometimes pushed to Engineer.
• Accountant — baccalaureate degree or CA, CPA, CGA, or CMA designation.
• Registered Nurse — state RN license. Florida’s nursing-shortage hospitals frequently use TN for Canadian RNs.
• Physician / Surgeon — teaching and research only; clinical practice requires an alternative visa.
• Pharmacist — state pharmacy license.
• Physical Therapist, Occupational Therapist, Medical Technologist — relevant licenses.
• Scientist categories — biologist, chemist, biochemist, geologist, mathematician, physicist, plant breeder, etc.
• University teacher — college and university faculty.
• Management Consultant — baccalaureate degree or 5 years of management consulting experience.

If a job sounds like it should qualify but isn’t on the list (e.g., business analyst, marketing manager, project manager), TN is generally not the right tool — H-1B is.

TN at the border vs. through USCIS: which is faster?

Canadian citizens have a unique advantage: TN can be obtained at the U.S. port of entry on the day of travel, with no USCIS petition required. The Canadian applicant arrives at the border (or a pre-flight inspection point) with the employer’s support letter, credentials, and required documents, pays the fee, and is admitted in TN status the same day.

Mexican citizens must obtain a TN visa stamp at a U.S. consulate in Mexico before traveling. Consular wait times vary; processing is typically 2 to 6 weeks but can extend during heavy demand. Alternatively, the U.S. employer can file Form I-129 with USCIS for a change of status if the Mexican citizen is already in the U.S. in another valid status.

For employers, this means Canadian TN hires can often start in days, while Mexican TN hires usually require consular planning of 4 to 8 weeks.

What happens if you don’t get selected in the H-1B lottery?

H-1B lottery non-selection is common — over 70% of registrations did not get selected in FY2025 per USCIS. Common alternatives:

• TN visa if the applicant is Canadian or Mexican and the job is on the USMCA list. This is the most direct path for many UCF graduates from those countries.
• L-1 intracompany transfer if the applicant has worked for the employer’s foreign affiliate for at least one year.
• O-1 extraordinary-ability visa if the applicant has documented top-of-field credentials.
• Cap-exempt H-1B at a U.S. university, non-profit research institution, or government research organization (no lottery required).
• F-1 STEM OPT extension giving 24 additional months of post-graduation work authorization for STEM-degree holders — buying time for another H-1B cycle.
• EB-2 NIW self-petition for advanced-degree professionals with national-interest work — no employer sponsor required, no PERM needed.

Can TN holders apply for a green card? The dual-intent problem

The TN classification requires nonimmigrant intent — the applicant must demonstrate the intent to return to their home country when the work ends. This conflicts with applying for a green card, which is a clear declaration of immigrant intent.

That said, TN holders do successfully transition to green cards. The strategies:

• Switch to H-1B first — H-1B explicitly permits dual intent. Many TN-to-green-card transitions go through an H-1B step.
• File the I-140 only initially — the I-140 immigrant petition can be filed by the employer while the worker is still in TN status. As long as no I-485 is filed and no immediate green-card intent is shown, TN renewals can continue.
• Marriage to a U.S. citizen — opens the immediate-relative path that is generally available regardless of nonimmigrant intent.
• Travel carefully — CBP officers at the border can deny re-entry if they conclude the TN holder has shown immigrant intent. Plan international travel around this.

Florida-specific guidance: Orlando, UCF, and the Lake Nona healthcare corridor

Florida’s tech and healthcare sectors are heavy TN users. Common scenarios from our practice:

• UCF Canadian graduates finishing engineering or computer-science degrees use TN with their first U.S. employer rather than entering the H-1B lottery, which has a low selection rate.
• Lake Nona Medical City and AdventHealth hospitals hire Canadian RNs via TN, with relicensure handled through the Florida Board of Nursing’s endorsement process for Canadian RNs.
• Engineering firms in the Lake Mary / Maitland corridor use TN for Canadian and Mexican engineers, often as a bridge to an EB-2 PERM filing two years later.

Frequently asked questions

Can my spouse work on a TN visa?

Spouses of TN holders receive TD status, which permits the spouse to live in the U.S. but does not authorize employment. Spouses who want to work must qualify for their own work visa or apply for an EAD only if eligible under a separate category. Compare to H-4 spouses of H-1B holders, who in certain circumstances can apply for an H-4 EAD.

How long does the H-1B lottery process take from start to start of work?

The lottery opens in March; selected registrants can file the H-1B petition between April and June; the earliest start date is October 1. Total: about 7 months from lottery registration to start, longer with RFE responses.

Can I change from TN to H-1B without leaving the U.S.?

Yes, via a change-of-status H-1B petition filed by the employer. The catch: H-1B has the annual cap, so the worker must be selected in the lottery. Once selected, the change of status can be processed without leaving the country.

What is the L-1 visa and how does it compare?

The L-1 is for intracompany transferees who have worked for the foreign affiliate of the U.S. employer for at least one of the prior three years. L-1A (executive/manager) and L-1B (specialized knowledge) are common for larger multinationals. Unlike TN, L-1 allows dual intent. Unlike H-1B, L-1 has no annual cap. The trade-off: L-1 requires a qualifying foreign-employer relationship that the worker has already maintained for a year.

How a Florida Board Certified attorney can help

Picking between TN, H-1B, L-1, and other employment-based visas is fact-intensive. Florida Board Certification in Immigration and Nationality Law — held by fewer than 1% of active Florida attorneys — is the credential The Florida Bar awards for sustained, demonstrated competence in this area.

For a consultation about TN, H-1B, or any other work visa from our Orlando office, contact us. We work with both corporate immigration teams and individual professionals, with flat-fee pricing for most petition types.

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