@Rshc , generally Non-Resident / Resident for Tax purposes is somewhat disconnected from the immigration status of the person. Based on the fact that he entered the country with a work permit in August of 2024, means that he will pass Substantial Presence Test sometime in Jan/Feb of 2025. It is after that he is a Tax Resident ( Resident for Tax purposes ).
Here is a page from IRS -----> Residency starting and ending dates | Internal Revenue Service
Determining an individual's tax residency status | Internal Revenue Service
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