If you earn income from your principal residence, for example from renting a room, your principal residence will still be exempt from Canadian income tax on any capital gain rising on disposition provided the income is incidental to your use of the property, you make no structural changes to the property and you don’t claim capital cost allowance (depreciation) on the property.
"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."