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system
what evidence do i need to declare tutoring income on my income tax?
user
i have been a private tutor on and off for about 30 years, in three countries, so i understand your concerns!  i always kept records as though it was a real business - even if i only had one student i kept records of dates/times/names, and also tracked where the money went (i never spent it straight up - it always got deposited to complete the paper trail; yes, this is paranoia on my part).  i've never been asked to prove anything with regards this income (although i have no canadian experience). it's always been a case of tell the tax folks and make sure my arse is covered if they come asking questions. hope this helps.
assistant