Please see the CRA guidelines before claiming home office expenses: http://www.cra-arc.gc.ca/tx/bsnss/tpcs/slprtnr/rprtng/t2125/ln9945-eng.html. Essentially, the workplace at home should be either:

  • the principal place of business; or
  • used exclusively to earn business income and on a regular and continuous basis for meeting clients, customers or patients of the individual in respect of the business.
Total area of house (square footage)
Area of house used for business purposes (square footage)
Expenses Amount
Heat
Electricity
Water
Insurance
Maintenance(minor expenses such as snow removal; lawn care; etc.)
Rent OR mortgage interest
Property taxes
Condominium fees
Other (specify)