You can enter your employee business
expenses in the following are in TurboTax Online:
Click My Account (Top right of your screen).
Select Tools.
In the pop up window, select Topic Search.
In the search bar, type in 2106
Highlight it and select GO, and follow the prompts
If you work at home for your employer's convenience and
you use your workspace regularly and exclusively for business, you may be able
to deduct home office expense including utilities prorated for your work space divided by the total square footage of your home..
For
more details, see:
Can I take the home
office deduction?
https://ttlc.intuit.com/questions/1901224-can-i-take-the-home-office-deduction