If Kriston is an employee and works from home you would record your home expenses on form T2200. You will also need to have this form signed by your employer, certifying your eligibility to make these claims.

Here is how he can claim the home expenses.  

You will go to the top right of your return and click on "Find" and type in expenses- click on employee expenses and GO. Here is where you will check off vehicle expenses and continue to add expenses.