You say you live in TN. Where do you WORK? If you live and work in TN then you need to file a non-resident return for NC to get a refund of NC tax withheld. TN has no state income tax.
If you are a W-2 employee you cannot claim a home office.
Sorry---W-2 employees cannot deduct expenses for working from home. Job-related expenses were eliminated as a deduction for W-2 employees by the tax laws that changed for 2018 and beyond. Your state tax laws might be different.
https://ttlc.intuit.com/questions/4482873-which-federal-tax-deductions-have-been-suspended-by-tax-re...
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
