How do I claim home office expenses?

If you're employed by an employer, your home office must be one of the following to qualify for tax credits:

Where you work more than 50% of the time
Used by you exclusively, regularly, and continuously for meeting customers or other persons during work

Your employer must verify your working conditions using Form T2200.

Select your product and follow the steps.

TurboTax Online

Answer all the initial interview questions if you haven't already.
In the left menu, select Income, then Employment Expenses.
Select Yes.
On the Employment Expense Profile screen, select Office in Home Expenses, then Continue.
Enter your home office info, then Continue.

TurboTax Desktop

Answer all the initial interview questions if you haven't already.
From the side navigation panel, select Income & Expenses, then Employment Expenses.
At the Employment Expenses (does this apply to you?) screen, select Yes.
On the Employment Expenses Profile screen, select T2200 - Declaration of Conditions of Employment.
On the Employment Expense Profile screen, select Office in Home Expenses.
On the Home Office Expense Carry Forward screen, enter your carryforward amount if any.
On the Home Office Space screen, enter your home office specifications.
On the Home Expenses screen, enter your expense information and select Continue.
(Optional) to view your claim for the expenses, from the side navigation panel, select Deductions & Credits > Deduction summary. Your claim for home office expenses is included in the amount shown for Employment Expenses.