You can deduct expenses you paid in 2012 for the employment use of a work space in your home, as long as you had to pay for them under your contract of employment. These expenses must be used directly in your work and your employer has not reimbursed and will not reimburse you. Also, you must meet one of the following conditions:
Keep with your records a copy of Form T2200, Declaration of Conditions of Employment, which has been completed and signed by your employer.
You can deduct the part of your costs that relates to your work space, such as the cost of electricity, heating, and maintenance. However, you cannot deduct mortgage interest, property taxes, home insurance, or capital cost allowance.
To calculate the percentage of work-space-in-the-home expenses you can deduct, use a reasonable basis, such as the area of the work space divided by the total finished area (including hallways, bathrooms, kitchens, etc.). For maintenance costs, it may not be appropriate to use a percentage of these costs. For example, if the expenses you paid (such as cleaning materials or paint) were to maintain a part of the house that was not used as a work space, then you cannot deduct any part of them. Alternatively, if the expenses you paid were to maintain the work space only, then you may be able to deduct all or most of them.
If your office space is in a rented house or apartment where you live, deduct the percentage of the rent as well as any maintenance costs you paid that relates to the work space.
The amount you can deduct for work-space-in-the-home expenses is limited to the amount of employment income remaining after all other employment expenses have been deducted. This means that you cannot use work space expenses to create or increase a loss from employment.
You can only deduct work space expenses from the income to which the expenses relate and not from any other income.
If you cannot deduct all your work space expenses in the year, you can carry forward the expenses. You can deduct these expenses in the following year as long as you are reporting income from the same employer. However, you cannot create or increase a loss from employment by carrying forward work space expenses.
For more information, see Interpretation Bulletin IT352, Employee's Expenses, Including Work Space in Home Expenses.
Include these expenses on Form T777, Statement of Employment Expenses, and attach it to your tax return.
Enter on line 229, the allowable amount of your employment expenses from the total expenses line of Form T777.