Interest Income tax for US non-residents
I am a US non-resident (Canada resident) for the whole of 2020. I have some interest income from my bank account in the US; the bank has already withheld some tax. The address mentioned on 1099-INT is my former US address in NJ and not my current Canadian address.
When reporting the interest income while filing tax returns, do I have to mention that the interest paid is tax exempt? Also, how do I determine that this is/is not tied to a US trade or business? This bank account was the one where I received my salary.