I home work in 8/2018, emp. request, dedicated home office & work 3 days a week. 20% of house. Are all set up costs under $250 expenses? are % of home expenses ded?

[JulieR]

Please rephrase your question.  Too many abbreviations used to fully understand what you are asking.

[Vanessa]

Under the new tax laws, none of it, including home office expenses, are deductible since you are an employee. 

"You can no longer claim a deduction for unreimbursed employee expenses unless you fall into one of the following categories of employment, or have certain qualified educator expenses.

• Armed Forces reservists.

• Qualified performing artists.

• Fee-basis state or local government officials.

• Employees with impairment-related work expenses.https://www.irs.gov/publications/p529