I have a USD saving's account with ING bank of Canada. When I left in 2007 I notify ING to change my account type to non-resident account. Today I received NR4 tax form with 271 CAD interest and zero tax witheld. I know the tax rate should've been 10%. I called ING and they told me that they are not witholding non-resident taxes on non-resident USD account. Is that true?On the NR4 tax slip it says "exception B". What should I do? Just send a check of 10% interest to CRA?