What does the school say?
Generally for W-2 employees, free housing is a taxable fringe benefit unless the housing is provided as a condition and requirement of employment (like, an apartment manager required to live on site; or, if a firefighter is required to live in the firehouse for a 24 hour shift and is provided free food, that is not taxable).
Students are often covered under other rules. For the stipend, your daughter should be provided a 1099-MISC, not a 1099-NEC. This is not self-employment income, it's a fellowship, and even if the school reports it on a 1099-NEC, she should report it as a fellowship. It's taxable income, but is not subject to self-employment tax because a learning fellowship is not considered "working".
That being said, I am pretty sure the free housing is not taxable. Has the school suggested one way or the other?
