If you are reporting self employment your deadline for filing your 2016 T1 return is June 15, 2017. If you don’t file on time you are subject to an immediate late filing tax penalty of a minimum of 5% of taxes owing. The late filing tax penalty can increase if you have filed your T1 return late in previous years.
"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."