Were you a deemed non-resident of Canada in 2010?
You may be a deemed non-resident of Canada for tax purposes if you were a resident of Canada in 2010, and you were also considered to be a resident of another country with which Canada has a tax treaty. You become a deemed non-resident of Canada when your ties with the other country are such that, under the tax treaty, you would be considered a resident of that other country. In this case, the same rules apply to you as to a non-resident of Canada (including the way you complete your return).
You may be a deemed non-resident of Canada for tax purposes if you were a resident of Canada in 2010, and you were also considered to be a resident of another country with which Canada has a tax treaty. You become a deemed non-resident of Canada when your ties with the other country are such that, under the tax treaty, you would be considered a resident of that other country. In this case, the same rules apply to you as to a non-resident of Canada (including the way you complete your return).