You are entitled to deduct the cost of your home office
If you operate a business from home you are entitled to deduct the cost of your home office for Canadian Income Tax purposes only if a separate part of your home is used to carry out the business.
"This article provides information of a general nature only. It is only current at the posting date. It is not updated and it may no longer be current. It does not provide legal advice nor can it or should it be relied upon. All tax situations are specific to their facts and will differ from the situations in the articles. If you have specific legal questions you should consult a lawyer."