My parents moved from Canada and now settle in United States 20 years ago. I was born in United States when my mother was still a Canadian citizen. She took me to Canada and obtained the Canadian citizenship card for me when I was a few months old. I have dual citizenship in US & Canada. Since we have been lived in United States and my mother now becomes an "emigrant" from Canada and has US Citizen. Currently, I am in 12th grade high school and want to study in an university in Ontario. Since my K-12 education is in United States, the university said I have to apply as a foreign student for admission. When they accept my application and I can show paper work that I am a Canadian Citizen, I can paid the tuition as a resident fee. How do I as a minor (17.5 years old) to declare as a Canadian Citizen? What are the procedures/forms and when to proceed the paper work? Will my change of status (from US Citizen to Canadian Citizen) affect my parents' income tax in Canada and i United States?