Are you self-employed or do you receive a W-2? If you are a W-2 employee, you cannot deduct job-related expenses on a federal tax return.
W-2 employees cannot deduct job-related expenses on a federal return. Job-related expenses were eliminated as a federal deduction for W-2 employees by the tax laws that changed for 2018 and beyond. Your state tax laws might be different in AL, AR, CA, HI, MN, NY or PA.
If you are self-employed then your home office goes on your Schedule C.