TN Visa vs H1B: For Canadians and Mexicans

The TN (Treaty National) visa was created under NAFTA — now the USMCA — and is available exclusively to citizens of Canada and Mexico. It allows qualified professionals to work in the U.S. in specific occupations listed in the treaty. The H1B visa, by contrast, is open to nationals of any country and covers a broader range of "specialty occupations" requiring at least a bachelor's degree.

At a high level:

• **TN visa**: Fast, inexpensive, renewable, but limited occupation list and no direct path to a green card
• **H1B visa**: Broader occupation coverage, dual intent (can pursue a green card), but subject to an annual lottery and significantly more expensive

For Canadian and Mexican professionals who qualify for both, the choice often comes down to one question: do you plan to stay in the U.S. permanently, or are you looking for a flexible work arrangement without the immigration overhead?

TN Visa Eligibility

To qualify for a TN visa, you must:

• Be a citizen of Canada or Mexico
• Work in one of the designated USMCA professions (there are roughly 60, including engineers, accountants, scientists, management consultants, and computer systems analysts)
• Have the credentials required for that profession — typically a bachelor's degree, though some occupations accept alternative qualifications
• Have a job offer from a U.S. employer in the qualifying occupation

The occupation list is the biggest constraint. If your role doesn't map cleanly to one of the listed professions, TN status won't work — even if you're otherwise highly qualified.

H1B Visa Eligibility

The H1B requires:

• A job in a "specialty occupation" that normally requires a bachelor's degree or higher
• A bachelor's degree (or equivalent) related to the specialty
• An employer willing to sponsor the petition and pay the prevailing wage

There is no nationality restriction, and the list of qualifying occupations is much broader than the TN list. Software developers, data analysts, marketing managers, UX designers, financial analysts, and many other roles qualify for H1B but may not map to a TN occupation.

This is where the two visas diverge sharply.

TN Visa Costs and Timeline

For Canadians, the TN visa process is remarkably simple. You can apply directly at a U.S. port of entry or preclearance facility with your offer letter, credentials, and a $50 processing fee. There's no petition filed with USCIS, no months-long wait, and no attorney technically required (though having one review your documents is wise). Many Canadians walk up to the border and walk away with TN status the same day.

For Mexicans, the process requires a visa stamp from a U.S. consulate, which adds a few weeks to the timeline, but it's still far simpler and cheaper than the H1B process.

Total typical cost: $50–$2,000 including optional legal review.

H1B Costs and Timeline

The H1B process involves:

• Filing a Labor Condition Application (LCA) with the Department of Labor
• Submitting Form I-129 to USCIS with a filing fee of $1,710 (base fee for most employers), plus additional fees that can push the total government fees to $2,500–$5,000+
• Attorney fees typically ranging from $3,000–$7,000
• An optional premium processing fee of $2,805 for a 15-business-day decision

Without premium processing, H1B petitions can take 3–8 months to adjudicate. And that's after you've won the lottery — if you're subject to the annual cap, you first need to be selected in the registration lottery held each March, with results typically announced by the end of that month.

Total typical cost: $5,000–$12,000+, borne primarily by the employer.

One of the biggest disadvantages of the H1B is the annual cap. Each fiscal year, only 65,000 new H1B visas are available (plus 20,000 for those with U.S. master's degrees or higher). In recent years, USCIS has received far more registrations than available slots — in some years, the selection rate has dropped below 25%.

This means that even if you have a willing employer, the right credentials, and a qualifying job, you may simply not be selected. You could wait years, re-entering the lottery each cycle, with no guarantee of ever being picked.

The TN visa has no cap and no lottery. If you qualify, you apply and you get it. For Canadians and Mexicans who are eligible for TN status, this alone can be reason enough to choose TN — at least as a starting point.

TN Visa Duration

TN status is granted in increments of up to three years. It can be renewed indefinitely, with no maximum total duration. However, each renewal should demonstrate that your employment remains temporary in nature — this is the legal fiction that makes TN renewals tricky as the years accumulate.

In practice, many professionals have maintained TN status for 10+ years without issue, but the lack of explicit "dual intent" protection (discussed below) means renewals can become more scrutinized over time.

H1B Duration

The H1B is initially granted for up to three years and can be extended to a maximum of six years. After six years, you generally must leave the U.S. for at least one year before applying again — unless you have an approved I-140 immigration petition or a labor certification (PERM) that was filed at least 365 days before your six-year limit. In that case, you can extend in one-year or three-year increments beyond the six-year mark.

This is the deciding factor for many professionals.

The H1B is a dual intent visa. This means you can openly pursue permanent residency (a green card) while on H1B status. Your employer can file a PERM labor certification, then an I-140 immigrant petition, and eventually an adjustment of status application — all while you continue working on your H1B. Immigration officers expect this and it won't jeopardize your status.

The TN visa is officially a non-immigrant visa with no dual intent protection. You're expected to maintain the intent to return to your home country. Filing for a green card while on TN status creates a legal tension: if a border officer or USCIS adjudicator believes you've abandoned your temporary intent, your TN renewal could be denied.

That said, many immigration attorneys have developed strategies for transitioning from TN to green card:

• **TN → H1B → Green Card**: Switch to H1B status first (if you win the lottery), then pursue the green card from the safety of dual intent status
• **TN → Green Card directly**: Some attorneys file I-140 petitions while the professional is on TN status, carefully managing the timing so that the green card process doesn't trigger a denial at the next TN renewal
• **TN → EB-1 or NIW**: For exceptional professionals, employer-sponsored EB-1 or self-petitioned National Interest Waiver categories can offer a faster path with less conflict

None of these paths is risk-free, and the right strategy depends on your specific circumstances, occupation, and risk tolerance.

Job mobility is another important consideration, especially in an era of frequent layoffs.

TN visa: Changing employers requires obtaining new TN status. For Canadians, this can be as simple as going to the border with a new offer letter and re-entering with fresh TN status. For Mexicans, it typically means a new consular appointment. There's no formal transfer process, but the speed of TN processing means switching jobs is relatively painless.

H1B visa: Your employer must file a new H1B petition with USCIS. Under current rules, you can begin working for the new employer once USCIS receives the new petition (portability), but the petition must be filed and you're in limbo until it's approved. If you've been laid off, you have a 60-day grace period to find a new sponsor or change status.

For professionals in fast-moving industries where job changes are frequent, the TN visa's simplicity is a meaningful advantage.

The TN visa is likely your better option if:

• You qualify for a listed USMCA profession
• You want to start working in the U.S. quickly without lottery uncertainty
• You're not sure if you want to stay permanently
• You value job mobility and low bureaucratic overhead
• You're early in your career and want to gain U.S. experience before committing to a green card path

The H1B is likely worth pursuing if:

• Your occupation doesn't appear on the TN list
• You're confident you want to pursue a green card
• Your employer is willing to cover the costs and sponsor you through the full process
• You've already been selected in the lottery or are cap-exempt (working for a university, nonprofit research org, or government research entity)

A common hybrid strategy: Start on TN status to begin working immediately, then have your employer register you for the H1B lottery. If you're selected, switch to H1B and begin the green card process under dual intent protection. This gives you the speed of TN with the long-term security of H1B.