If you use your own computer to work at home when you are an
employee, you can claim a tax deduction for business use of the computer only
if the use is for your employer's convenience, and the use is required as a
condition of your employment. If you meet these conditions, and you use the
computer more than 50% for your work, you could claim the section 179 deduction
the year you buy the computer or claim accelerated depreciation.
In TurboTax, enter at:
Federal Taxes Tab
Deductions & Credits
-Scroll down to:
-Employment Expenses
-- Job related expenses
https://ttlc.intuit.com/questions/1901645-how-do-i-depreciate-a-computer-i-bought-for-work
http://voices.yahoo.com/can-claim-tax-deduction-computer-when-8917765.html