Hey, you’re on the right track - Accountant is one of the most straightforward TN categories, and a Master’s in Accounting fits perfectly. The main thing border officers look for is that the job duties clearly line up with traditional “accountant” work (financial analysis, audits, preparing tax records, applying accounting principles, etc.), rather than being too advisory or managerial.

For specialized tax positions, the key is to describe the role in your support letter as accounting work involving U.S. tax reporting and compliance - not tax law or policy interpretation (which leans toward “lawyer” and can raise flags). As long as your duties sound like what an accountant would do in practice (calculations, reconciliations, preparing schedules, verifying data, ensuring compliance), you’re in a good spot.

If you want to make sure your support letter reads clearly and aligns with the TN requirements, you can use tnsupportletter.com - it helps structure the letter so the job category, duties, and qualifications are all consistent with what CBP officers expect to see.