TD does not authorize employment. A Canadian customer or foreign payment does not by itself make work performed in the United States authorized.
Review the activity where it will be performed
Describe the services, location and intended schedule before relying on this income. An eligible spouse or unmarried child under 21 may qualify for TD, and TD permits study, but its work restriction remains. If the spouse has an independent professional opportunity, assess a separate applicable classification on its own conditions.
Do not assume the principal’s TN approval extends professional authorization to the household. Hypothetical example: A Trois-Rivières ornamental-fish importer plans to have a TD spouse answer customer messages and prepare invoices from the family apartment in the United States. The first review should identify the actual tasks, where they occur and who benefits from them; a foreign customer base does not settle those questions.
TD study permission does not convert administrative work into permitted employment. Put the household plan in sequence: confirm the principal’s classification, identify each dependent’s status, then assess any separate work opportunity under its own requirements. A frequent error is calling regular revenue-producing work “helping” because the business is family owned.
Keep evidence of the proposed role and schedule, and do not rely on a payment route or unpaid label to resolve the work-authority issue.