If you make a self-donation you will receive a tax receipt, however this may affect your incentive prize (if applicable).
In accordance with CRA guidelines, the self-donation can not help you get to a new incentive level. If it does, Kids Help Phone has to issue the lower incentive prize based on the what is raised without the self-donation included.
For example, Joe donated $20 to his Walk page and received a tax receipt. At the end of the event, Joe raised an overall total of $500. Because Joe donated $20 to himself and received a tax receipt, the $20 cannot count towards his incentive. He therefore would be eligible to receive a $25 incentive prize, even though it seems he qualifies for the $50 prize.